everydaycalc
Maths

Sine Calculator

Use the free sine calculator. Enter angle (degrees) to get a result, with a formula and worked example.

How to calculate sine

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

Formula

sin(angle × π ÷ 180)

Worked example

Angle (degrees)
30

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.