» Triangle Calculator

Input

3 / 3
Input

Side

Angle

Β°
Β°
Β°
Angle unit

Triangle diagram

Results

Sides

a
b
c

Angles

Ξ±
Ξ²
Ξ³

Key measurements

Area A
Perimeter P
Semiperimeter s

Heights

Height hₐ
Height hᡦ
Height h𝑐

Radii

Inradius r
Circumradius R

Medians

Median mₐ
Median mᡦ
Median m𝑐

This triangle calculator uses any valid set of three known measurements to find the remaining sides and angles. It also calculates the area, perimeter, heights, medians, inradius and circumradius, with a diagram to check the result.