Right Triangle Calculator

Files stay on your device · 100% private Runs in your browser

Solve a right triangle from any two known parts: sides, hypotenuse, or an angle.

How it works: fill any two of the parts shown on the diagram — legs a and b, hypotenuse c, or angle A — and the rest is solved with a² + b² = c² and basic trigonometry.
Enter any two parts of the triangle.

How to Use Right Triangle Calculator

1

Select or Upload

Choose your file or paste your input into the workspace above. Drag and drop is supported.

2

Configure & Process

Adjust options to fit your task. Processing runs immediately with no waiting queue.

3

Download Result

Preview and save your output in one click with no watermarks or sign-up prompts.

Private & Confidential

Browser tools process files locally on your device, and server temporary files are deleted automatically within 15 minutes.

Free & No Registration

Full access to every utility without creating an account, signing in, or hitting paywalls.

Works on Any Device

Responsive layout that runs smoothly on desktop, tablet, and mobile browsers across all operating systems.

Frequently Asked Questions

Is Right Triangle Calculator completely free to use?

Yes, Right Triangle Calculator on KiloToolbox is 100% free with no limits, hidden fees, or account sign-up required.

Are my files safe and private?

Yes. Right Triangle Calculator processes all files directly inside your web browser using client-side JavaScript and WebAssembly. Your files never leave your computer or mobile device and are never uploaded to any remote server.

Can I use Right Triangle Calculator on mobile phones and tablets?

Yes, KiloToolbox is fully responsive and runs smoothly on iPhone, Android, iPad, Mac, Windows, and Linux.