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Area Converter
Convert area between square meters, square feet, acres, hectares and more.
Free · No sign-up · Updated August 2026
1 km² = 1,000,000 m²
| Unit | 1 km² = |
|---|---|
| Square kilometer | 1 km² |
| Square meter | 1,000,000 m² |
| Square centimeter | 10,000,000,000 cm² |
| Hectare | 100 ha |
| Acre | 247.10538 ac |
| Square mile | 0.38610216 mi² |
| Square yard | 1,195,990 yd² |
| Square foot | 10,763,910 ft² |
Converts instantly in your browser using precise factors. Nothing is uploaded.
🔒 This tool runs entirely in your browser. Your data is never uploaded.
Frequently asked questions
How big is one acre?＋
1 acre = 4,046.86 square meters ≈ 43,560 square feet. Convert between all common area units here.
Is it free and private?＋
Yes — it's free, needs no sign-up, and converts instantly in your browser.