Cosine of Degrees: 30 deg

Specific conversion page with reference context, calculator, and nearby values.

Author

Dr. Sofia Mendoza Ruiz

Math editorial contributor

Mexican marine biologist from UNAM, documenting coral reef degradation across the Caribbean

Reviewed by

Prof. Hans Muller

Math content reviewer

German renewable energy engineer at TU Munich, pioneering grid-scale hydrogen storage solutions

Last updatedFebruary 22, 2026

PublishedFebruary 22, 2026

30 deg converts to

0.866025 Cosine Value

Use this as a quick reference for Cosine of Degrees.

Value Details

Input: 30 deg

Output: 0.866025 Cosine Value

Browse all reference values for Cosine of Degrees

Cosine of Degrees

Calculate cos(θ) from an angle entered in degrees.

Calculated Result

Nearby Reference Values

Cosine of Degrees values near 30 deg
Angle (Degrees)cos(θ)
-45 deg0.707107 Cosine Value
-30 deg0.866025 Cosine Value
-15 deg0.965926 Cosine Value
0 deg1 Cosine Value
15 deg0.965926 Cosine Value
30 deg0.866025 Cosine Value
45 deg0.707107 Cosine Value
60 deg0.5 Cosine Value
75 deg0.258819 Cosine Value
90 deg0 Cosine Value
105 deg-0.258819 Cosine Value

Frequently Asked Questions

Common questions about Cosine of Degrees, formulas, and expected usage.

What does the Cosine of Degrees calculator do?

It helps with evaluating cosine values from degree-based angles in geometry and physics.

What formula does the Cosine of Degrees calculator use?

cos(θ) is computed after converting degrees to radians.

What inputs are valid?

Any finite degree angle is valid.

When would I use this?

evaluating cosine values from degree-based angles in geometry and physics

Methodology and Review

This page is generated from the same conversion definition used by the main calculator page, which keeps the calculator, reference table rows, and FAQ schema aligned.

Reviewer and update metadata are shown above and included in structured data. See our editorial policy, review process, and corrections policy.

Use this page as a fast lookup reference, then confirm final project values using applicable standards and manufacturer documentation.