ProCalcHubEvery Calculation Made Simple
Conversion

Hectares to Acres Converter

1 hectare = 2.471053815 ac. Enter any value to convert hectares (ha) to acres (ac), or use the table below for common values.

Results

1 ha =2.471053815 achectares → acres
1 ha2.471053815 ac
1 ac0.4046856422 ha
Formula
ac = ha × 2.471053815
1 ha in other units
UnitValue
square meters (m²)10,000
square kilometers (km²)0.01
square inches (in²)15,500,031
square feet (ft²)107,639.1042
square yards (yd²)11,959.90046
square miles (mi²)0.003861021585
acres (ac)2.471053815

Formula

ac = ha × 2.471053815

Example: 10 ha = 24.71053815 ac. To convert the other way, use ha = ac × 0.4046856422.

Quick mental estimate: multiply by about 2.5.

Hectares to Acres conversion table

Hectares (ha)Acres (ac)
1 ha2.471053815 ac
2 ha4.942107629 ac
3 ha7.413161444 ac
4 ha9.884215259 ac
5 ha12.35526907 ac
6 ha14.82632289 ac
7 ha17.2973767 ac
8 ha19.76843052 ac
9 ha22.23948433 ac
10 ha24.71053815 ac
15 ha37.06580722 ac
20 ha49.42107629 ac
25 ha61.77634537 ac
30 ha74.13161444 ac
40 ha98.84215259 ac
50 ha123.5526907 ac
75 ha185.3290361 ac
100 ha247.1053815 ac
250 ha617.7634537 ac
500 ha1,235.526907 ac
1,000 ha2,471.053815 ac

About hectares and acres

The hectare is 10,000 m² (100 m × 100 m), the standard unit for farmland and forests in metric countries.

The acre is 43,560 square feet (about 4,047 m²), the traditional unit for farmland and building plots in the US and UK.

Other Area conversions

Acres → HectaresReverse conversionSquare Meters → Acresm² → acSquare Kilometers → Acreskm² → acSquare Inches → Acresin² → acSquare Feet → Acresft² → acSquare Yards → Acresyd² → acSquare Miles → Acresmi² → acHectares → Square Metersha → m²Hectares → Square Kilometersha → km²Hectares → Square Inchesha → in²Hectares → Square Feetha → ft²Hectares → Square Yardsha → yd²Hectares → Square Milesha → mi²

Frequently asked questions

How do I convert hectares to acres?

Use the formula ac = ha × 2.471053815. For example, 10 ha = 24.71053815 ac.

What is 1 hectare in acres?

1 ha = 2.471053815 ac.

How do I convert acres back to hectares?

Use ha = ac × 0.4046856422. 1 ac = 0.4046856422 ha.