On this page is a *trigonometric functions calculator*, which calculates the result for a given input angle for the 6 trigonometric functions – sine, cosine, tangent, cotangent, secant, and cosecant.

## Trigonometry Functions Calculator

**Table of Contents**show ▼

## Using the Trigonometric Functions Calculator

To use the tool to find the results of the trigonometric functions for a given angle, enter the angle, choose how its measured (degrees or radians) and compute.

**Angle:**Enter the angle which you'd like to compute the functions using**Degrees or Radians:**Choose which units you use to measure the angle

Where results are undefined, you'll see "NaN".

## What are the trigonometric functions?

The trigonometric functions, which are defined in terms of the unit circle – or, for angles under 90 degrees (square), alternatively defined using a right triangle.

In terms of the right triangle, the functions are defined as:

**sine:**opposite/hypotenuse**cosine:**adjacent/hypotenuse**tangent:**opposite/adjacent**cotangent:**adjacent/opposite**secant:**hypotenuse/adjacent**cosecant:**hypotenuse/opposite

If you know the result of one of the trigonometric functions already, you can reverse it into an angle using the inverse trigonometry functions calculator.

### Trigonometric Functions

We've built tools for computing both the trigonometric functions and their inverses. Find them here: