Rectangle Area Calculator
Compute the area of a rectangle from length and width: A = l × w.
Calculator
Rectangle Area Calculator
Result
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Formula
A = length × width
Step-by-step
- 1
Enter length and width
Both must be positive.
- 2
Read the area
Area in square units.
Worked example
Example input: a: 8, b: 3
Result: 24
Related tools
- Rectangle Perimeter
2 × (l + w).