Pythagorean Theorem Calculator
Find the hypotenuse of a right triangle from its two legs.
Result
Results are estimates for general information only and are not professional advice.
The Pythagorean theorem
In a right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides: c = √(a² + b²). This calculator finds the hypotenuse from the two legs.
Frequently Asked Questions
What is the Pythagorean Theorem Calculator?
Find the hypotenuse of a right triangle from its two legs. It runs instantly in your browser and is completely free to use.
What do I need to enter to use the Pythagorean Theorem Calculator?
The Pythagorean Theorem Calculator asks for the following values (2): Leg a, Leg b. Fill them in and the result appears immediately — the calculation runs on your own device, so nothing you type is sent to a server.
How accurate is the Pythagorean Theorem Calculator?
The Pythagorean Theorem Calculator uses standard, widely-accepted formulas, so its figures are reliable estimates for everyday planning. They are not a substitute for advice from a qualified professional.
Is the Pythagorean Theorem Calculator free, and do I need an account?
Yes. The Pythagorean Theorem Calculator — and every other calculator on Calculatis — is completely free, with no registration, no download and no limit on how often you use it.