Area Converter — Free
Runs 100% in your browser — your files never leave your device.
Land sells in acres and hectares, floor plans count square feet and square meters, and tile boxes quote square centimeters. Enter any value and all ten area units convert together, every factor squared from exact length definitions.
How it works
- 1
Choose the unit you have
Square meters, acres, hectares, or any of the other seven.
- 2
Type the value
The remaining units convert instantly as you type.
- 3
Read the answer
Compare parcels, rooms, and fields on the same page.
About this tool
Where the odd numbers come from
An acre is 43,560 square feet — a medieval strip of plowed land, one furlong by one chain. A hectare is a tidy 10,000 square meters. A square foot is exactly 0.09290304 square meters because the foot is exactly 0.3048 meters and area squares that factor. The strangeness is history; the math is exact.
Square units are not length units
You cannot convert meters to square meters — one measures a line, the other a surface. The factor that trips people up: one square meter is about 10.76 square feet, not 3.28, because 3.28 squared is 10.76. For plain distances reach for the length converter.
Frequently asked questions
How many acres is a hectare?
About 2.471 acres. A handy mental shortcut: a hectare is roughly two and a half football pitches.
What is a square mile in acres?
Exactly 640 acres — the grid the US Public Land Survey used, which is why prairie-state farms map so cleanly.
Is floor area measured the same way as land?
Same math, usual units differ: rooms are quoted in square feet or square meters, while plots and farms use acres and hectares. All ten units sit on this one page.