Absolute Value Calculator
Calculate the absolute value of a number using |x|.
Type: formula
Predefined pages: 20
Math Conversion Tools
High-volume math calculators for percentages, geometry, logarithms, and foundational formulas.
Table of Contents
Available Conversions
Angle (Degrees) from Rise and Run
Calculate direction angle in degrees from rise and run using atan2(rise, run).
Type: calculator
Predefined pages: 80
Angle (Degrees) from Slope Percent
Convert slope percent to angle in degrees using angle = arctan(slope% / 100).
Type: formula
Predefined pages: 21
Angle (Radians) from Rise and Run
Calculate direction angle in radians from rise and run using atan2(rise, run).
Type: calculator
Predefined pages: 80
Annulus Area from Outer and Inner Diameters
Calculate annulus area from outer and inner diameters.
Type: calculator
Predefined pages: 36
Annulus Area Calculator
Calculate annulus area from outer and inner radius using A = π(R² - r²).
Type: calculator
Predefined pages: 22
Arc Length from Diameter and Angle (Degrees)
Calculate arc length from circle diameter and central angle in degrees.
Type: calculator
Predefined pages: 90
Arc Length from Radius and Angle
Calculate arc length from radius and central angle in degrees using s = rθ (with θ in radians).
Type: calculator
Predefined pages: 25
Arccosine to Degrees
Calculate the inverse cosine and return the principal angle in degrees.
Type: formula
Predefined pages: 15
Arccosine to Radians
Calculate inverse cosine and return the principal angle in radians.
Type: formula
Predefined pages: 15
Arcminutes to Degrees
Convert arcminutes to degrees, where 60 arcminutes = 1 degree.
Type: formula
Predefined pages: 21
Arcminutes to Radians
Convert arcminutes to radians.
Type: formula
Predefined pages: 21
Arcseconds to Degrees
Convert arcseconds to degrees, where 3600 arcseconds = 1 degree.
Type: formula
Predefined pages: 21
Arcseconds to Radians
Convert arcseconds to radians.
Type: formula
Predefined pages: 21
Arcsine to Degrees
Calculate the inverse sine and return the principal angle in degrees.
Type: formula
Predefined pages: 15
Arcsine to Radians
Calculate inverse sine and return the principal angle in radians.
Type: formula
Predefined pages: 15
Arctangent to Degrees
Calculate the inverse tangent and return the principal angle in degrees.
Type: formula
Predefined pages: 27
Arctangent to Radians
Calculate inverse tangent and return the principal angle in radians.
Type: formula
Predefined pages: 25
Arithmetic Mean of Two Numbers
Calculate the arithmetic mean of two numbers using (a + b) / 2.
Type: calculator
Predefined pages: 25
Basis Points to Decimal
Convert basis points (bps) to decimal rate form, where 10,000 bps = 1.0.
Type: formula
Predefined pages: 20
Basis Points to Percent
Convert basis points (bps) to percent values, where 100 bps = 1%.
Type: formula
Predefined pages: 20
Ceiling Function Calculator
Calculate the ceiling of a number, rounding up to the smallest integer greater than or equal to x.
Type: formula
Predefined pages: 27
Chord Length from Radius and Angle (Degrees)
Calculate chord length from circle radius and central angle in degrees.
Type: calculator
Predefined pages: 90
Chord Length from Radius and Angle (Radians)
Calculate chord length from circle radius and central angle in radians.
Type: calculator
Predefined pages: 72
Circle Area from Circumference
Calculate circle area from circumference using A = C² / (4π).
Type: formula
Predefined pages: 20
Circle Area from Diameter
Calculate circle area from diameter using A = πd²/4.
Type: formula
Predefined pages: 20
Circle Area from Radius
Calculate the area of a circle from radius using A = πr².
Type: formula
Predefined pages: 20
Circle Circumference from Area
Calculate circle circumference from area using C = 2√(πA).
Type: formula
Predefined pages: 20
Circle Circumference from Radius
Calculate circle circumference from radius using C = 2πr.
Type: formula
Predefined pages: 20
Circle Diameter from Area
Calculate circle diameter from area using d = 2√(A/π).
Type: formula
Predefined pages: 20
Circle Radius from Area
Calculate circle radius from area using r = √(A/π).
Type: formula
Predefined pages: 20
Circle Radius from Circumference
Calculate circle radius from circumference using r = C / (2π).
Type: formula
Predefined pages: 20
Circle Segment Area from Radius and Angle (Degrees)
Calculate circle segment area from radius and central angle in degrees.
Type: calculator
Predefined pages: 90
Circumference to Diameter
Convert circumference to diameter using d = C / π.
Type: formula
Predefined pages: 20
Combinations (n choose r)
Calculate the number of combinations using nCr for integers with 0 ≤ r ≤ n ≤ 18.
Type: calculator
Predefined pages: 84
Complex Magnitude from Real and Imaginary Parts
Calculate the magnitude of a complex number from its real and imaginary components.
Type: calculator
Predefined pages: 81
Complex Phase (Degrees) from Real and Imaginary Parts
Calculate complex-number phase angle in degrees using atan2(imag, real).
Type: calculator
Predefined pages: 80
Cone Lateral Area from Diameter and Height
Calculate cone lateral area from diameter and height.
Type: calculator
Predefined pages: 42
Cone Radius from Slant Height and Height
Calculate cone base radius from slant height and vertical height.
Type: calculator
Predefined pages: 48
Cone Radius from Volume and Height
Calculate cone radius from volume and height.
Type: calculator
Predefined pages: 54
Cone Slant Height from Diameter and Height
Calculate cone slant height from base diameter and vertical height.
Type: calculator
Predefined pages: 42
Cone Surface Area from Diameter and Height
Calculate total cone surface area from diameter and height.
Type: calculator
Predefined pages: 42
Cone Volume from Diameter and Height
Calculate cone volume from diameter and height.
Type: calculator
Predefined pages: 42
Cone Volume from Radius and Height
Calculate cone volume using V = πr²h / 3.
Type: calculator
Predefined pages: 25
Cosecant of Degrees
Calculate cosecant from an angle entered in degrees where sine is non-zero.
Type: formula
Predefined pages: 22
Cosecant of Radians
Calculate cosecant from an angle entered in radians where sine is non-zero.
Type: formula
Predefined pages: 22
Cosine of Degrees
Calculate cos(θ) from an angle entered in degrees.
Type: formula
Predefined pages: 25
Cosine of Radians
Calculate cos(x) from an angle entered in radians.
Type: formula
Predefined pages: 25
Cotangent of Degrees
Calculate cotangent from an angle entered in degrees where sine is non-zero.
Type: formula
Predefined pages: 22
Cotangent of Radians
Calculate cotangent from an angle entered in radians where sine is non-zero.
Type: formula
Predefined pages: 22
Cube Number Calculator
Cube a number quickly by calculating x³.
Type: formula
Predefined pages: 21
Cube Root Calculator
Calculate the cube root of a number using ∛x for positive or negative values.
Type: formula
Predefined pages: 21
Cube Side from Volume
Calculate cube side length from volume using side = ∛volume.
Type: formula
Predefined pages: 20
Cube Surface Area from Side
Calculate cube surface area from side length using A = 6s².
Type: formula
Predefined pages: 20
Cube Volume from Side
Calculate cube volume from side length using V = s³.
Type: formula
Predefined pages: 20
Cylinder Lateral Area from Diameter and Height
Calculate cylinder lateral area from diameter and height.
Type: calculator
Predefined pages: 42
Cylinder Lateral Area Calculator
Calculate cylinder lateral (side) area using A = 2πrh.
Type: calculator
Predefined pages: 25
Cylinder Radius from Volume and Height
Calculate cylinder radius from volume and height.
Type: calculator
Predefined pages: 54
Cylinder Surface Area from Circumference and Height
Calculate total cylinder surface area from circumference and height.
Type: calculator
Predefined pages: 49
Cylinder Surface Area from Diameter and Height
Calculate total cylinder surface area from diameter and height.
Type: calculator
Predefined pages: 169
Cylinder Surface Area Calculator
Calculate total cylinder surface area using A = 2πr(h + r).
Type: calculator
Predefined pages: 25
Cylinder Volume from Circumference and Height
Calculate cylinder volume from circumference and height.
Type: calculator
Predefined pages: 49
Cylinder Volume from Diameter and Height
Calculate cylinder volume from diameter and height using V = πd²h / 4.
Type: calculator
Predefined pages: 169
Cylinder Volume from Radius and Height
Calculate cylinder volume using V = πr²h.
Type: calculator
Predefined pages: 25
Decimal to Basis Points
Convert decimal rate values to basis points (bps), where 1.0 = 10,000 bps.
Type: formula
Predefined pages: 20
Decimal to Percent
Convert decimal values to percent form by multiplying by 100.
Type: formula
Predefined pages: 20
Degrees to Arcminutes
Convert degrees to arcminutes, where 1 degree = 60 arcminutes.
Type: formula
Predefined pages: 19
Degrees to Arcseconds
Convert degrees to arcseconds, where 1 degree = 3600 arcseconds.
Type: formula
Predefined pages: 19
Degrees to Gradians
Convert degrees to gradians (gons) where 400 gradians equals one full turn.
Type: formula
Predefined pages: 25
Degrees to Milliradians
Convert degrees to milliradians (mrad).
Type: formula
Predefined pages: 25
Degrees to Radians
Convert angle measurements from degrees to radians for trigonometry and geometry calculations.
Type: formula
Predefined pages: 25
Degrees to Turns
Convert angle measurements from degrees to turns (revolutions).
Type: formula
Predefined pages: 25
Diameter to Circumference
Convert a circle diameter directly to circumference using C = πd.
Type: formula
Predefined pages: 20
Diameter to Radius
Convert diameter to radius with the relationship r = d / 2.
Type: formula
Predefined pages: 20
Distance from Delta X and Delta Y
Calculate 2D distance from horizontal and vertical differences using d = √(Δx² + Δy²).
Type: calculator
Predefined pages: 25
Double Factorial of n
Calculate n!! for non-negative integers up to 21 using the alternating-step factorial product.
Type: formula
Predefined pages: 22
Ellipse Area from Semi-Axes
Calculate ellipse area from semi-major and semi-minor axes using A = πab.
Type: calculator
Predefined pages: 25
Ellipse Eccentricity from Semi-Axes
Calculate ellipse eccentricity using e = sqrt(1 - b²/a²).
Type: calculator
Predefined pages: 111
Ellipse Perimeter (Ramanujan) from Semi-Axes
Approximate ellipse perimeter from semi-major and semi-minor axes using Ramanujan’s formula.
Type: calculator
Predefined pages: 111
Equilateral Triangle Area from Side
Calculate equilateral triangle area from side length using A = (√3/4)s².
Type: formula
Predefined pages: 20
e^x Calculator
Calculate the exponential function e^x for growth, decay, and continuous compounding math.
Type: formula
Predefined pages: 20
Factorial of n
Calculate n! for non-negative integers up to 18 while staying within exact safe integer range.
Type: formula
Predefined pages: 19
Fibonacci Number
Calculate the nth Fibonacci number for non-negative integers up to 78.
Type: formula
Predefined pages: 23
Floor Function Calculator
Calculate the floor of a number, rounding down to the greatest integer less than or equal to x.
Type: formula
Predefined pages: 27
GCD of Two Integers
Calculate the greatest common divisor (GCD) of two integers using the Euclidean algorithm.
Type: calculator
Predefined pages: 80
Geometric Mean of Two Numbers
Calculate the geometric mean of two numbers using √(ab).
Type: calculator
Predefined pages: 25
Gradians to Degrees
Convert gradians (gons) to degrees.
Type: formula
Predefined pages: 20
Gradians to Radians
Convert gradians (gons) to radians using radians = gradians × π / 200.
Type: formula
Predefined pages: 20
Harmonic Mean of Two Numbers
Calculate the harmonic mean of two positive numbers using 2ab / (a + b).
Type: calculator
Predefined pages: 25
Imaginary Part from Magnitude and Phase (Degrees)
Calculate the imaginary component of a complex number from magnitude and phase angle in degrees.
Type: calculator
Predefined pages: 105
LCM of Two Integers
Calculate the least common multiple (LCM) of two integers.
Type: calculator
Predefined pages: 80
Log Base 10 Calculator
Calculate common logarithm log10(x) for positive inputs.
Type: formula
Predefined pages: 20
Logarithm Base b of x
Calculate log base b of x using change of base: log(x) / log(b).
Type: calculator
Predefined pages: 76
Milliradians to Degrees
Convert milliradians (mrad) to degrees.
Type: formula
Predefined pages: 20
Milliradians to Radians
Convert milliradians (mrad) to radians, where 1000 mrad = 1 radian.
Type: formula
Predefined pages: 20
Multiplier to Percent Change
Convert a multiplier to percent change using percent = (multiplier - 1) × 100.
Type: formula
Predefined pages: 20
Natural Log Calculator
Calculate the natural logarithm ln(x) using base e for positive inputs.
Type: formula
Predefined pages: 20
n-th Root of a Number
Calculate the n-th root of a non-negative number using x^(1/n).
Type: calculator
Predefined pages: 126
Parallelogram Area Calculator
Calculate parallelogram area from base and perpendicular height using A = bh.
Type: calculator
Predefined pages: 25
Percent Difference Calculator
Calculate percent difference between two values using |a-b| divided by the average of a and b.
Type: calculator
Predefined pages: 25
Percent Error Calculator
Calculate percent error using |measured - actual| / |actual| × 100.
Type: calculator
Predefined pages: 20
Percent to Basis Points
Convert percent values to basis points (bps), where 1% = 100 bps.
Type: formula
Predefined pages: 20
Percent to Decimal
Convert percent values to decimal form by dividing by 100.
Type: formula
Predefined pages: 20
Percent to Multiplier
Convert percent change to multiplier form using multiplier = 1 + percent/100.
Type: formula
Predefined pages: 25
Percentage Change Calculator
Calculate percent change between an original value and a new value.
Type: calculator
Predefined pages: 25
Percentage Decrease Calculator
Decrease a starting value by a percentage and calculate the final value.
Type: calculator
Predefined pages: 30
Percentage Increase Calculator
Increase a starting value by a percentage and calculate the final value.
Type: calculator
Predefined pages: 30
Percentage of Number Calculator
Calculate a percentage of a number using result = base × percent / 100.
Type: calculator
Predefined pages: 30
Permutations (nPr)
Calculate the number of ordered permutations using nPr for integers with 0 ≤ r ≤ n ≤ 18.
Type: calculator
Predefined pages: 84
Polygon Diagonals from Sides
Calculate the number of diagonals in a polygon from the number of sides.
Type: formula
Predefined pages: 20
Polygon Interior Angle Sum from Sides
Calculate the sum of interior angles in a polygon from the number of sides.
Type: formula
Predefined pages: 20
Polygon Triangulations from Sides (One Vertex)
Calculate how many triangles a polygon can be split into from one vertex.
Type: formula
Predefined pages: 20
Power (x^y)
Calculate x raised to the power y for positive x and any finite exponent y.
Type: calculator
Predefined pages: 80
Pythagorean Hypotenuse Calculator
Calculate hypotenuse from two legs using c = √(a² + b²).
Type: calculator
Predefined pages: 25
Pythagorean Leg Calculator
Calculate a missing right-triangle leg from hypotenuse and the other leg using a = √(c² - b²).
Type: calculator
Predefined pages: 21
Radians to Arcminutes
Convert radians to arcminutes.
Type: formula
Predefined pages: 13
Radians to Arcseconds
Convert radians to arcseconds.
Type: formula
Predefined pages: 13
Radians to Degrees
Convert angle measurements from radians to degrees for geometry, drafting, and reporting.
Type: formula
Predefined pages: 25
Radians to Gradians
Convert radians to gradians (gons) using gradians = radians × 200 / π.
Type: formula
Predefined pages: 25
Radians to Milliradians
Convert radians to milliradians (mrad), where 1 radian = 1000 mrad.
Type: formula
Predefined pages: 25
Radians to Turns
Convert radians to turns (revolutions) using turns = radians / 2π.
Type: formula
Predefined pages: 25
Radius to Diameter
Convert radius to diameter with the basic relationship d = 2r.
Type: formula
Predefined pages: 20
Real Part from Magnitude and Phase (Degrees)
Calculate the real component of a complex number from magnitude and phase angle in degrees.
Type: calculator
Predefined pages: 105
Reciprocal Calculator
Calculate the reciprocal of a number using 1/x.
Type: formula
Predefined pages: 20
Rectangle Area Calculator
Calculate rectangle area from length and width using A = l × w.
Type: calculator
Predefined pages: 25
Rectangle Diagonal Calculator
Calculate rectangle diagonal using the Pythagorean theorem d = √(l² + w²).
Type: calculator
Predefined pages: 25
Rectangle Perimeter Calculator
Calculate rectangle perimeter from length and width using P = 2(l + w).
Type: calculator
Predefined pages: 25
Regular Polygon Apothem from Side and Count
Calculate apothem of a regular polygon from side length and number of sides.
Type: calculator
Predefined pages: 48
Regular Polygon Area from Side and Count
Calculate regular polygon area from side length and number of sides.
Type: calculator
Predefined pages: 48
Regular Polygon Circumradius from Side and Count
Calculate circumradius of a regular polygon from side length and number of sides.
Type: calculator
Predefined pages: 48
Regular Polygon Exterior Angle from Sides
Calculate the exterior angle of a regular polygon from the number of sides.
Type: formula
Predefined pages: 20
Regular Polygon Interior Angle from Sides
Calculate the interior angle of a regular polygon from the number of sides.
Type: formula
Predefined pages: 20
Regular Polygon Perimeter from Side and Count
Calculate regular polygon perimeter from side length and number of sides.
Type: calculator
Predefined pages: 48
Regular Polygon Side from Apothem and Count
Calculate side length of a regular polygon from apothem and number of sides.
Type: calculator
Predefined pages: 56
Regular Polygon Side from Area and Count
Calculate side length of a regular polygon from area and number of sides.
Type: calculator
Predefined pages: 72
Regular Polygon Side from Circumradius and Count
Calculate side length of a regular polygon from circumradius and number of sides.
Type: calculator
Predefined pages: 56
Regular Polygon Side from Perimeter and Count
Calculate side length of a regular polygon from perimeter and number of sides.
Type: calculator
Predefined pages: 36
Remainder from Division
Calculate the JavaScript-style remainder after dividing one number by another.
Type: calculator
Predefined pages: 84
Rhombus Area from Diagonals
Calculate rhombus area from diagonals using A = d1 × d2 / 2.
Type: calculator
Predefined pages: 25
Rise from Run and Angle (Degrees)
Calculate rise from run and angle using rise = run × tan(angle).
Type: calculator
Predefined pages: 77
Round to Nearest Integer
Round a number to the nearest integer using standard half-up JavaScript rounding behavior.
Type: formula
Predefined pages: 27
Run from Rise and Angle (Degrees)
Calculate run from rise and angle using run = rise / tan(angle).
Type: calculator
Predefined pages: 70
Sagitta from Radius and Angle (Degrees)
Calculate circle sagitta (segment height) from radius and central angle in degrees.
Type: calculator
Predefined pages: 54
Sagitta from Radius and Chord Length
Calculate circle sagitta from radius and chord length.
Type: calculator
Predefined pages: 54
Secant of Degrees
Calculate secant from an angle entered in degrees where cosine is non-zero.
Type: formula
Predefined pages: 23
Secant of Radians
Calculate secant from an angle entered in radians where cosine is non-zero.
Type: formula
Predefined pages: 23
Sector Area from Radius and Angle
Calculate sector area from radius and central angle in degrees using A = πr²θ / 360.
Type: calculator
Predefined pages: 25
Sector Perimeter from Radius and Angle (Degrees)
Calculate sector perimeter from radius and central angle in degrees.
Type: calculator
Predefined pages: 90
Semicircle Area from Radius
Calculate semicircle area from radius using A = (1/2)πr².
Type: formula
Predefined pages: 20
Semicircle Perimeter from Radius
Calculate semicircle perimeter including the diameter using P = πr + 2r.
Type: formula
Predefined pages: 20
Sign Function Calculator
Return the sign of a number as -1, 0, or 1 using Math.sign.
Type: formula
Predefined pages: 27
Sine of Degrees
Calculate sin(θ) from an angle entered in degrees.
Type: formula
Predefined pages: 25
Sine of Radians
Calculate sin(x) from an angle entered in radians.
Type: formula
Predefined pages: 25
Slope from Rise and Run
Calculate slope using m = rise / run.
Type: calculator
Predefined pages: 25
Slope Percent from Angle (Degrees)
Convert an angle in degrees to slope percent using slope% = tan(θ) × 100.
Type: formula
Predefined pages: 23
Sphere Cap Surface Area from Radius and Height
Calculate spherical cap surface area from sphere radius and cap height.
Type: calculator
Predefined pages: 60
Sphere Cap Volume from Radius and Height
Calculate spherical cap volume from sphere radius and cap height.
Type: calculator
Predefined pages: 60
Sphere Diameter from Volume
Calculate sphere diameter from volume by solving V = 4/3πr³ for diameter.
Type: formula
Predefined pages: 20
Sphere Radius from Surface Area
Calculate sphere radius from surface area by solving A = 4πr² for radius.
Type: formula
Predefined pages: 20
Sphere Radius from Volume
Calculate sphere radius from volume by solving V = 4/3πr³ for radius.
Type: formula
Predefined pages: 20
Sphere Surface Area from Diameter
Calculate sphere surface area from diameter using A = πd².
Type: formula
Predefined pages: 20
Sphere Surface Area from Radius
Calculate sphere surface area from radius using A = 4πr².
Type: formula
Predefined pages: 20
Sphere Volume from Diameter
Calculate sphere volume from diameter using V = πd³/6.
Type: formula
Predefined pages: 20
Sphere Volume from Radius
Calculate sphere volume from radius using V = 4/3πr³.
Type: formula
Predefined pages: 20
Square Area from Side
Calculate square area from side length using A = s².
Type: formula
Predefined pages: 20
Square Diagonal from Side
Calculate square diagonal from side length using d = s√2.
Type: formula
Predefined pages: 20
Square Number Calculator
Square a number quickly by calculating x².
Type: formula
Predefined pages: 21
Square Perimeter from Side
Calculate square perimeter from side length using P = 4s.
Type: formula
Predefined pages: 20
Square Pyramidal Number
Calculate the sum of squares from 1 to n using n(n + 1)(2n + 1) / 6.
Type: formula
Predefined pages: 23
Square Root Calculator
Calculate the principal square root of a number using √x.
Type: formula
Predefined pages: 20
Square Side from Area
Calculate square side length from area using side = √area.
Type: formula
Predefined pages: 20
Square Side from Diagonal
Calculate square side length from diagonal using side = diagonal / √2.
Type: formula
Predefined pages: 20
Sum of Cubes (1 to n)
Calculate 1³ + 2³ + ... + n³ using [n(n + 1)/2]².
Type: formula
Predefined pages: 23
Tangent of Degrees
Calculate tan(θ) from an angle entered in degrees, excluding undefined angles at 90° + 180°k.
Type: formula
Predefined pages: 23
Tangent of Radians
Calculate tan(x) from an angle entered in radians, excluding undefined angles at π/2 + πk.
Type: formula
Predefined pages: 23
Triangle Area (Base and Height)
Calculate triangle area from base and height using A = 1/2bh.
Type: calculator
Predefined pages: 25
Triangular Number
Calculate the nth triangular number using T(n) = n(n + 1) / 2.
Type: formula
Predefined pages: 23
Truncate Number Calculator
Truncate a number by removing the fractional part without rounding.
Type: formula
Predefined pages: 27
Turns to Degrees
Convert turns (revolutions) to degrees for geometry and motion calculations.
Type: formula
Predefined pages: 20
Turns to Radians
Convert turns (revolutions) to radians using radians = turns × 2π.
Type: formula
Predefined pages: 20
What Percent of Calculator
Calculate what percent one value is of another using percent = part / whole × 100.
Type: calculator
Predefined pages: 30
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