Hectares to Acres Converter

1 ha equals 2.4710538 ac, and 1 ac equals 0.40468564 ha. Enter a value in either box to convert hectares to acres and back. Formula: square meters = value x unit factor (1 ft2 = 0.09290304 m2 exactly; 1 acre = 43,560 ft2 = 4,046.8564224 m2).

· CalcFlow Editorial

1 ha = 2.4710538 ac

Results shown are estimates for informational purposes only. Nothing on CalcFlow is financial, tax, legal, or medical advice. Always consult a qualified professional before making important decisions.

Hectares to Acres Conversion Table

HectaresAcres
1 ha2.4710538 ac
2 ha4.9421076 ac
5 ha12.355269 ac
10 ha24.710538 ac
25 ha61.776345 ac
50 ha123.55269 ac
100 ha247.10538 ac
500 ha1,235.5269 ac
1,000 ha2,471.0538 ac

Acres to Hectares Conversion Table

AcresHectares
1 ac0.40468564 ha
2 ac0.80937128 ha
5 ac2.0234282 ha
10 ac4.0468564 ha
25 ac10.117141 ha
50 ac20.234282 ha
100 ac40.468564 ha
500 ac202.34282 ha
1,000 ac404.68564 ha

Worked example: 10 ha = 24.710538 ac. A 1,200 square foot apartment is 1,200 x 0.09290304 = 111.48 square meters. A 5 acre lot is 2.02 hectares.

Need other units? Open the full Area Converter.

Popular Area Conversions

Square feet to Square metersSquare meters to Square feetAcres to HectaresAcres to Square feetAcres to Square meters

Formula

square meters = value x unit factor (1 ft2 = 0.09290304 m2 exactly; 1 acre = 43,560 ft2 = 4,046.8564224 m2)

Understanding Area Conversion

Area units are squares of length units, so their conversion factors are the squares of the length factors: one square foot is 0.3048 squared, or 0.09290304 square meters. Land is usually quoted in acres in the United States and hectares elsewhere. One acre is exactly 43,560 square feet and one hectare is 10,000 square meters.

Tips and Best Practices

  • 1To go from square feet to square meters multiply by 0.0929; the reverse is about 10.764.
  • 2One hectare is about 2.471 acres, and one acre is about 0.4047 hectares.
  • 3Square-unit factors are the length factor squared, so never reuse a length factor directly.

Real-World Example

A 1,200 square foot apartment is 1,200 x 0.09290304 = 111.48 square meters. A 5 acre lot is 2.02 hectares.

Common Mistakes to Avoid

  • Applying a length factor to an area (for example multiplying square feet by 0.3048 instead of 0.0929).
  • Confusing square meters with meters squared in a formula: 2 m squared means 4 m2 when it is a length, but 2 m2 is an area.
  • Using the survey acre for a legal boundary when the international acre is meant; they differ slightly.

How to Use

  1. Type a number in the Hectares box.
  2. The Acres result appears instantly; you can also edit the Acres box to convert backwards.
  3. Use the swap button to reverse the direction and Copy result to copy the answer.

Frequently Asked Questions

Q

How many acres are in 1 ha?

1 ha equals 2.4710538 ac.
Q

How many hectares are in 1 ac?

1 ac equals 0.40468564 ha.
Q

What is the formula to convert hectares to acres?

square meters = value x unit factor (1 ft2 = 0.09290304 m2 exactly; 1 acre = 43,560 ft2 = 4,046.8564224 m2).
Q

How many square meters are in a hectare?

A hectare is exactly 10,000 square meters.

Sources: NIST SP 811 and Handbook 44 Appendix B (international foot, acre = 43,560 ft2); BIPM SI Brochure (hectare).

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