Calculate the area and perimeter of a rectangle. Area = length × width. Perimeter = 2 × (length + width).
How it works
- Enter length and width.
- View area (square units) and perimeter (linear units).
- Use the result for flooring, fencing, or other measurements.
Frequently asked questions
What is the difference between area and perimeter?
Area is the space inside (square units). Perimeter is the distance around (linear units).
Can I use this for a square?
Yes — just enter the same number for length and width.
Units?
Keep length and width in the same unit. The area will be in square units of that measurement.