How many hectares are in one acre?

There are 0.404685642 hectares in 1 acre.

How do you convert hectares to acres?

Multiply the number of hectares by 2.47105381 — or use the formula ac = ha × 2.47105381.

What is 6 hectares in acres?

6 hectares is 14.8263229 acres. 6 × 2.47105381 = 14.8263229 acres.

Is the hectares to acres conversion exact?

Yes. The relationship is fixed by definition, so 2.47105381467 is an exact conversion factor — only the displayed result is rounded.

Hectares to Acres Converter

Convert hectares to acres instantly with this free hectares to acres converter. Enter any value to get an accurate area conversion, plus the formula, the conversion factor and a full reference table.

What is 1 hectare in acres?

1 hectare is equal to 2.47105381 acres.

1 × 2.47105381 = 2.47105381 acres

Amount

Result2.471053815

1 hectare = 2.471053815 acres

Hectares to Acres formula

ac = ha × 2.47105381

The hectares to acres conversion factor is 2.47105381467, which is exact by definition. 1 hectare = 2.47105381467 acres, and 1 acre = 0.40468564224 hectares.

Worked examples

2 hectares = 4.94210763 acres — 2 × 2.47105381 = 4.94210763 acres
6 hectares = 14.8263229 acres — 6 × 2.47105381 = 14.8263229 acres
10 hectares = 24.7105381 acres — 10 × 2.47105381 = 24.7105381 acres

Hectares to Acres conversion table

Every value below is calculated with the exact conversion factor and rounded for display.

hectares to acres conversion table
Hectares (ha)	Acres (ac)
1 ha	2.4710538 ac
2 ha	4.9421076 ac
3 ha	7.4131614 ac
4 ha	9.8842153 ac
5 ha	12.355269 ac
6 ha	14.826323 ac
7 ha	17.297377 ac
8 ha	19.768431 ac
9 ha	22.239484 ac
10 ha	24.710538 ac
12 ha	29.652646 ac
15 ha	37.065807 ac
20 ha	49.421076 ac
25 ha	61.776345 ac
30 ha	74.131614 ac
50 ha	123.55269 ac
75 ha	185.32904 ac
100 ha	247.10538 ac
500 ha	1,235.5269 ac
1,000 ha	2,471.0538 ac

When you need to convert hectares to acres

Comparing property and land listings, which use square feet in the US and square metres almost everywhere else.
Estimating flooring, turf or paint coverage from a supplier's spec.
Reading farm or plot sizes given in acres or hectares.

Getting a feel for the scale

A converted number is easier to trust when you can picture it. These reference points let you sanity-check the result at a glance.

Hectare (ha)

A hectare is about two and a half acres
A hectare is 100 m × 100 m

Acre (ac)

An acre is roughly a US football field without the end zones

Common mistakes to avoid

Dividing when you should multiply. Because 1 hectare = 2.47105 acres, the answer should be larger than the number you started with.
Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.

How precise does the answer need to be?

Round only at the end, and only to the precision your task actually needs. The converter above keeps full double precision internally and rounds for display.

How these units are defined

Hectare (ha): 10,000 square meters; the metric land-area unit. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
Acre (ac): 43,560 square feet; the standard land-area unit in the US and UK. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.

Frequently asked questions

What is 1 hectare in acres?: 1 hectare is equal to 2.47105381 acres.
How many hectares are in one acre?: There are 0.404685642 hectares in 1 acre.
How do you convert hectares to acres?: Multiply the number of hectares by 2.47105381 — or use the formula ac = ha × 2.47105381.
What is 6 hectares in acres?: 6 hectares is 14.8263229 acres. 6 × 2.47105381 = 14.8263229 acres.
Is the hectares to acres conversion exact?: Yes. The relationship is fixed by definition, so 2.47105381467 is an exact conversion factor — only the displayed result is rounded.