How to use this pythagorean theorem calculator
Enter the requested values above and select Calculate. The result updates immediately on the page, so you can change one value and compare different scenarios without leaving the calculator.
Formula and method
c = √(a² + b²).
Example
Sides 3 and 4 produce a hypotenuse of 5.
What this calculator is useful for
Find the hypotenuse of a right triangle from the two perpendicular side lengths. It is designed for quick estimates and everyday problem solving. When a calculation affects a contract, tax filing, medical decision or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
Frequently asked questions
What does the Pythagorean Theorem Calculator calculate?
Find the hypotenuse of a right triangle from the two perpendicular side lengths.
How does the calculation work?
c = √(a² + b²).
Is this calculator free?
Yes. ERICH Calculators is free to use and no account is required.