How do I convert acres to hectares?

Take the value in acres and multiply by 0.404686 (1 acre ≈ 0.4 ha). Or just type the value above — the result updates instantly.

How accurate is the conversion?

Conversions use exact internationally agreed factors and display up to 6 significant digits.

Yes, completely free with no signup required and no limits for normal use.

Convert acres to hectares online for free. Instant, accurate conversion with a handy reference table — runs in your browser.

Value

From

0.404686

1 acres = 0.404686 hectares

Quick reference

How do I convert acres to hectares?: Take the value in acres and multiply by 0.404686 (1 acre ≈ 0.4 ha). Or just type the value above — the result updates instantly.
How accurate is the conversion?: Conversions use exact internationally agreed factors and display up to 6 significant digits.
Is this tool free?: Yes, completely free with no signup required and no limits for normal use.