Pythagorean Theorem Calculator

Calculate the missing side of a right triangle using the Pythagorean theorem (a² + b² = c²). Supports solving for hypotenuse or either leg with step-by-step work.

How to Use Pythagorean Theorem Calculator

The Pythagorean Theorem Calculator is a free online tool that lets you calculate the missing side of a right triangle using the Pythagorean theorem (a² + b² = c²). Supports solving for hypotenuse or either leg with step-by-step work. Whether you are a student, professional, or hobbyist, this tool is designed for students, professionals, and anyone needing quick calculations who need quick, accurate results without any hassle. Simply provide your input, configure any options, and get instant results right in your browser. No sign-up or installation required — all processing happens entirely client-side with zero data transmitted to any server, ensuring your information stays private and secure.

Step-by-Step Instructions

  1. Enter the required values into the input fields
  2. Click Calculate to process your input values
  3. Review the calculated results and breakdown
  4. Use the copy button to copy the result to your clipboard

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