Find the missing side of a right triangle, plus area, perimeter, and angles
No. Pythagorean Theorem Calculator is free and works without creating an account. Open the page and start using it.
We check Pythagorean Theorem Calculator periodically to keep it working correctly and to make small improvements based on how people actually use it. The date at the top of the page shows the last review. Found a bug or have a suggestion? There's a feedback button in the bottom-right corner.