Triangle Area (Heron's formula)
Calculate Triangle Area (Heron's formula) instantly. Free online calculator with the exact formula, a worked example, and metric units. No signup required.
Triangle Area (Heron's formula)
Side am
Side bm
Side cm
Area (Heron's formula)
14.6969m²
Perimeter
18m
Semi-perimeter s
9m
Area
14,7m²
Inradius
1,633m
More about: Triangle Area (Heron's formula)
What it calculates
The “Triangle Area (Heron's formula)” calculator computes Area (Heron's formula) in m² from 3 parameters: side a (m), side b (m), side c (m).
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters Side a = 5 m, Side b = 6 m, Side c = 7 m the result is 14.7 m² (semi-perimeter s = 9).
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.