Area Calculator
Calculate the area of a rectangle from its length and width.
Calculate
Enter your values below.
Result
Area
0
Formula used
Area = Length × Width
Example: 8 × 5 = 40 square units.
How to use this calculator
- Enter Length, Width.
- Press Calculate to see your result instantly.
FAQ
Frequently asked questions
What units does this use?
Any consistent unit — the result will be in that unit squared (e.g. meters in, square meters out).
Is this only for rectangles?
Yes — for other shapes, use the dedicated Circle, Triangle, or Polygon calculators.
Can length and width be equal?
Yes, that calculates the area of a square.
What if I enter zero?
Please enter values greater than zero — a shape needs positive dimensions.