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Geometry Tools

Triangle Calculator

Solve triangles with SSS, SAS, ASA, right-triangle, and SSA methods.

About this geometry tool

Solve a triangle using side lengths, angles, a base and height, or right-triangle measurements. Enter only the measurements shown below, choose the matching unit, and review the calculated dimensions and results.

Dimension drawing: Length, width, radius, height, side, angle, and diagonal labels appear with the fields for the selected shape. Use the diagram guidance and enter only the dimensions requested.
Enter valid measurements that can form a triangle.

Browser-based processing is used where supported. Review each tool's privacy notes before entering sensitive information.

About Triangle Calculator

Solve triangles with SSS, SAS, ASA, right-triangle, and SSA methods. This tool runs in your browser.

How to use it

  1. Enter your values.
  2. Review the result.
  3. Clear the fields to start again.

Key Features

  • ✓ Browser-based processing
  • ✓ Instant results
  • ✓ No server upload

Frequently Asked Questions

Is my data uploaded?

No. Calculations happen locally in your browser.

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