A football/soccer pitch is ~7,000–7,500 m². A city block varies by city; some US blocks are ~0.01–0.04 km².

Area Converter

Q: Hectare vs acre — what’s the difference?

1 hectare (ha) = 10,000 m². 1 acre (ac) = 4,046.8564224 m². A hectare is about 2.471 acres.

Q: Is 1 cm² exactly 100 mm²?

Yes. 1 cm = 10 mm, so 1 cm² = 100 mm².

Convert square meters (m²), square kilometers (km²), square centimeters (cm²), square feet (ft²), square inches (in²), square yards (yd²), acres (ac), hectares (ha) and square miles (mi²). Type in any unit; all others update instantly.

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FAQ

Hectare vs acre — what’s the difference?

1 hectare (ha) = 10,000 m² (100 m × 100 m). 1 acre (ac) = 4,046.8564224 m². A hectare is about 2.471 acres.

Is 1 cm² exactly 100 mm²?

Yes. 1 cm = 10 mm, so 1 cm² = (10 mm)² = 100 mm².

Common land sizes

A football/soccer pitch is ~7,000–7,500 m². A city block varies widely; some US blocks are ~0.01–0.04 km².

Tips for entering values

Select the unit first, then enter a value once — every tile updates instantly.