Cosine Calculator

How to calculate cosine

This tool calculates cosine from Angle (degrees). Enter each quantity in its labelled field, then use the formula below to check the calculation.

Formula

cos(angle × π ÷ 180)

Worked example

Angle (degrees)

60

Applying the formula to these values gives 0.5 .

What should I check?

Calculate powers, roots, logarithms, ratios, slopes and trigonometric functions. Trigonometric angles are entered in degrees.

Use the reset button to restore this example. Your inputs are processed in this browser and are not included in a shared calculator link. See our methodology and limitations.