Area of a Square
Calculate Area of a Square instantly. Free online calculator with the exact formula, a worked example, and metric units. No signup required.
Area of a Square
Side am
Square area
25m²
Perimeter
20m
Diagonal
7,0711m
Side
5m
Area
25m²
More about: Area of a Square
What it calculates
The “Area of a Square” calculator computes Square area in m² from 1 parameter: side a (m).
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters Side a = 5 m the result is 25 m² (a × a = 5²).
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.