Triangle Calculator

Triangle Calculator is a fast and easy online tool that lets you solve triangle measurements and properties. Simply select a mode and enter sides or angles, and the tool instantly calculates results with step-by-step solutions. You can choose units, switch between SSS/SAS/ASA modes, and view results in a chart instantly. Created by team DevManifesto.

Known Data (Select a mode) SSS – 3 Sides Known SAS – 2 Sides + Included Angle ASA – 2 Angles + Side Between Them

Length Unit (none) mm cm m inches feet

Side a

Side b

Side c

Side a

Included Angle C (°)

Side b

Angle A (°)

Side c – between the two angles (opposite C)

Angle B (°)

Step-by-Step Solution

Sides & Angles

Derived Properties