Cosine of Degrees Reference Values

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

Author

Dr. Sofia Mendoza Ruiz

Math editorial contributor

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

Reviewed for accuracy 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

Table of Contents

  1. All value pages
  2. Reference table
  3. FAQs
  4. Methodology and review
  5. Related conversions

Reference Value Index

This page lists 25 reference values for quick browsing and lookup.

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All Reference Values

Reference Table

Cosine of Degrees reference values
Angle (Degrees)cos(θ)
-180 deg-1 Cosine Value
-165 deg-0.965926 Cosine Value
-150 deg-0.866025 Cosine Value
-135 deg-0.707107 Cosine Value
-120 deg-0.5 Cosine Value
-105 deg-0.258819 Cosine Value
-90 deg0 Cosine Value
-75 deg0.258819 Cosine Value
-60 deg0.5 Cosine Value
-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
120 deg-0.5 Cosine Value
135 deg-0.707107 Cosine Value
150 deg-0.866025 Cosine Value
165 deg-0.965926 Cosine Value
180 deg-1 Cosine Value

Frequently Asked Questions

Frequently asked questions for Cosine of Degrees and its reference values.

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

Each row on this page links to a value detail page derived from the same conversion data file as the main calculator and reference table. This reduces inconsistencies across page variants.

Editorial metadata and structured data are rendered across the converter page and linked value pages. Review policies are documented in our review process and editorial policy.