Area Converter

Convert surface area between metric and imperial measures — from square millimeters and square feet to acres and hectares.

How many square meters are in an acre?

One acre is defined here as 4,046.85642 m² (43,560 ft²). One hectare is exactly 10,000 m² — about 2.471 acres.

Is m² the SI area unit?

Yes. Square meters are the SI derived unit of area. Other units in this converter are scaled relative to that base.

Can I convert land parcels for legal surveys?

Use the math for estimates and planning. Official surveys and deeds may require jurisdiction-specific definitions — confirm with a licensed surveyor when precision matters.