Conversions
Area converter
Convert land and floor areas between metric and US units. Every factor comes from exact length definitions.
What this means
- 1,500 sq ft is 139.35456 sq m.
- 1 sq ft = 0.09290304 sq m.
- Factors are exact definitions where one exists, so results are as precise as the display allows.
What if
About this calculator
What this calculator does
It converts between units by going through one base unit, the square meter. Every unit has a fixed factor to the base.
How it is calculated
result = value * (factor of From) / (factor of To)
1 foot = 0.3048 m, so 1 sq ft = 0.09290304 sq m. An acre is 43,560 sq ft (4,046.8564224 sq m) and a hectare is 10,000 sq m.
How to read the result
The main result is rounded for display to at most eight decimal places. The other-units line shows the same value in several common units at once.
Sources and method
Exact conversion factors from NIST where they are defined. Unit tests check round trips and known values.
Questions
How many square feet are in an acre?
43,560 square feet.
How do I convert square feet to square meters?
Multiply by 0.09290304. 1,000 sq ft is about 92.9 sq m.
Is a hectare bigger than an acre?
Yes. A hectare is about 2.471 acres.
How many acres in a square mile?
640 acres.