Area conversion

Convert Acre to Hectare

1 acre (ac) equals 0.40468564224 hectare (ha). Enter any value below to convert from ac to ha.

Enter a value and choose units. Results update instantly.

1 ac = 0.4046856422 ha

All Area units

From 1 ac
UnitValue
Square meter m² 4,046.8564224
Square kilometer km² 0.0040468564
Square centimeter cm² 40,468,564.2239999995
Square millimeter mm² 4,046,856,422.4000005722
Square inch in² 6,272,640
Square foot ft² 43,560
Square yard yd² 4,840
Square mile mi² 0.0015625
Acre ac 1
Hectare ha 0.4046856422
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Formula

ac to ha conversion formula

Use this relationship for a direct conversion:

ha = ac x 0.40468564224

Worked example

2 ac = 0.8093712845 ha.

Values derived from exact metric and international length definitions.

Quick reference

Acre to Hectare table

Acre (ac)Hectare (ha)
0.010.0040468564
0.10.0404685642
10.4046856422
20.8093712845
52.0234282112
104.0468564224
2510.117141056
5020.234282112
10040.468564224
1,000404.68564224

From unit

About the acre

Exactly 43,560 square feet.

Symbol: ac

To unit

About the hectare

Exactly 10,000 square meters.

Symbol: ha

Keep converting

Related conversions

Hectare to AcreReverse this conversion Acre to Square meterac to m²Acre to Square kilometerac to km²Acre to Square footac to ft²Acre to Square inchac to in²Acre to Square yardac to yd²Acre to Square mileac to mi²

Source

Conversion standard

Definitions are checked against NIST SP 811: Area units. Calculations use full internal precision before display rounding.

View the complete area converter

Questions

ac to ha FAQ

How do you convert acre to hectare?

Use the formula ha = ac x 0.40468564224. 1 acre (ac) equals 0.40468564224 hectare (ha).

Is the ac to ha conversion exact?

Both unit definitions use exact factors. Only the displayed decimal may be rounded.