HomeUnit Conversion › Hectares to Square meters

Hectares to Square meters (ha to m²)

Convert hectares to square meters: 1 ha = 10000 m². Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.

Formula

1 ha = 10000 m²

square meters = hectares × 10000 — reverse: hectares = square meters × 0.0001

The factor is derived from the SI definitions of both units (base unit: m2) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.

Worked examples

Hectares to square meters conversion table

Hectares (ha)Square meters (m²)
110000
220000
330000
440000
550000
660000
770000
880000
990000
10100000
15150000
20200000
25250000
30300000
40400000
50500000
75750000
1001000000
2002000000
2502500000
5005000000
100010000000

FAQ

How many square meters are in one hectare?

1 ha = 10000 m². The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.

What is the formula to convert hectares to square meters?

Multiply the value in hectares by 10000: square meters = hectares × 10000. For example, 5 ha = 50000 m².

How do I convert square meters back to hectares?

Multiply by the inverse factor 0.0001 (hectares = square meters × 0.0001), or use the square meters-to-hectares page.

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