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Convert acre to hectare

Here you can quickly calculate how many hectare fit in one acre.
  • 1 acre = 0.404686 ha
  • 1 ha = 2.471054 acre

Acre to hectare conversion table

acre hectare
1 0.404686
2 0.809371
5 2.023428
10 4.046856
20 8.093713
50 20.234282
100 40.468564

Acre to hectare formula

To convert acre to hectare, multiply by 0.404686.

1 acre = 0.404686 ha
Example: 1 acre = 0.404686 hectare

Common area conversion mistakes

  • A hectare is 10,000 m², a 100 × 100 m square, and one square kilometer holds 100 hectares. News stories about wildfires and land plots often mix the two up. Rule of thumb: a football pitch is roughly 0.7 hectares.
  • An acre is about 4,047 m², which is roughly 0.405 hectares, not the other way around. One hectare holds about 2.47 acres. Buying property abroad: multiply acres by 0.405 to get hectares.
  • The Swedish tunnland, the area one barrel of seed could sow, is about 4,936 m², roughly half a hectare. Older property records are often misread as full hectares. Working rule: two tunnland ≈ one hectare.
  • For areas the length factor must be squared, using it directly is the classic trap. 1 km is 1,000 m, but 1 km² is 1,000,000 m², and 1 m² is 10,000 cm². The rule: convert the length unit, then square the factor.

Quick acre and hectare conversion quiz

Score: 0

250 acre equals 101 hectare.

Correct answer: 250 acre = 101 hectare.

9.9 hectare equals 22 acre.

Correct answer: 9.9 hectare = 24.5 acre.

12.5 acre equals 4.3 hectare.

Correct answer: 12.5 acre = 5.06 hectare.

6.3 acre equals 2.55 hectare.

Correct answer: 6.3 acre = 2.55 hectare.

More area conversions