Convert hectares to square metres

One hectare is 10000 square metres. To convert any amount, multiply by 10000. Going the other way, one square metre is 0.0001 hectares.

Multiply the hectare figure by 10000. So m² = ha × 10000. For a quick mental estimate, multiplying by about 10000 gets you within a percent or so, which is close enough for most everyday purposes.

One hectare is about two and a half acres. A hectare is exactly 10,000 square metres — a square 100 m on a side — and is the standard agricultural land unit in the metric world.

One square metre is a generous doormat, or a small dining table. The square metre is the standard unit for floor area in property listings across the metric world, and increasingly in commercial listings even in the US.

Yes. Since the 1959 international yard and pound agreement, the imperial and metric systems are related by exact definitions rather than measurements — the inch is exactly 25.4 mm and the pound exactly 0.45359237 kg. Everything derived from those, including this conversion, is therefore exact. Round at the end rather than partway through, since rounding ha before converting introduces an error the conversion then multiplies.