Right Triangle Solver

Solve a right triangle from any two positive side lengths.

Use the Pythagorean relationship to find missing sides and area.

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Solve a right triangle

live result

First value

Second leg (optional)

Hypotenuse (optional)

Side a

Side b

Hypotenuse

Enter dimensions or values only; results are mathematical estimates and do not replace construction, engineering, or academic requirements.

Context & Reference

For solving a right triangle from two sides.

calculator guide

Uses the Pythagorean relationship to find the missing side and area.

Use this calculator with your own values, then review the clearly labelled result and copy it when you need it elsewhere.

a and b are legs; c is the hypotenuse.

Enter legs 3 and 4 to find hypotenuse 5.

Enter exactly two positive side lengths.

This calculator runs locally in this browser. Enter exactly two positive side lengths.

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