About the area converter
Enter an area to convert it between metric and US units — useful for floor plans, land, and materials.
How to use this calculator
- Enter a value.
- Choose the units.
- Read the result.
Worked examples
- 1,500 × 0.09290304
139.35 m².
Measurement guidance
Measuring a room
Multiply length by width for rectangles. Split L-shaped rooms into rectangles and add them.
Frequently asked questions
How many square feet in an acre?
43,560.
How big is a hectare?
10,000 m², about 2.47 acres.