Acres to Hectares Converter

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What is the Acres to Hectares Converter?

This converter changes acres into hectares and back again. Type a value, pick the direction and the answer appears instantly, using the exact conversion factor.

How to use the Acres to Hectares tool

Enter Value and Direction.
The result updates instantly as you type, or press Calculate.
Use Try an example to see how it works, and Reset to start again.

Formula

1 acres = 0.404685642 hectares. To convert acres to hectares, multiply by 0.404685642. To go back, divide by 0.404685642. Quick reference: 1 acres = 0.4047 hectares; 5 acres = 2.0234 hectares; 10 acres = 4.0469 hectares; 25 acres = 10.1171 hectares; 50 acres = 20.2343 hectares; 100 acres = 40.4686 hectares.

Worked example

With value 5, direction Acres to Hectares, the hectares comes to 2.023428. Conversion factor: 1 acres = 0.404685642 hectares.

Frequently asked questions

How many hectares are in one acre?

One acre equals 0.404685642 hectares.

How do I convert hectares back to acres?

Divide the value by 0.404685642, or switch the direction in the tool above.

acres to hectares conversion chart

To convert acres to hectares, multiply by 0.404686. Example: 5 ac × 0.404686 = 2.023 ha. Use the converter above for any value, or look up common values in the chart below.

Acres to hectares chart: 1 to 100 ac

1 ac	0.405 ha	2 ac	0.809 ha	3 ac	1.214 ha	4 ac	1.619 ha
5 ac	2.023 ha	6 ac	2.428 ha	7 ac	2.833 ha	8 ac	3.237 ha
9 ac	3.642 ha	10 ac	4.047 ha	11 ac	4.452 ha	12 ac	4.856 ha
13 ac	5.261 ha	14 ac	5.666 ha	15 ac	6.07 ha	16 ac	6.475 ha
17 ac	6.88 ha	18 ac	7.284 ha	19 ac	7.689 ha	20 ac	8.094 ha
21 ac	8.498 ha	22 ac	8.903 ha	23 ac	9.308 ha	24 ac	9.712 ha
25 ac	10.117 ha	26 ac	10.522 ha	27 ac	10.927 ha	28 ac	11.331 ha
29 ac	11.736 ha	30 ac	12.141 ha	31 ac	12.545 ha	32 ac	12.95 ha
33 ac	13.355 ha	34 ac	13.759 ha	35 ac	14.164 ha	36 ac	14.569 ha
37 ac	14.973 ha	38 ac	15.378 ha	39 ac	15.783 ha	40 ac	16.187 ha
41 ac	16.592 ha	42 ac	16.997 ha	43 ac	17.401 ha	44 ac	17.806 ha
45 ac	18.211 ha	46 ac	18.616 ha	47 ac	19.02 ha	48 ac	19.425 ha
49 ac	19.83 ha	50 ac	20.234 ha	51 ac	20.639 ha	52 ac	21.044 ha
53 ac	21.448 ha	54 ac	21.853 ha	55 ac	22.258 ha	56 ac	22.662 ha
57 ac	23.067 ha	58 ac	23.472 ha	59 ac	23.876 ha	60 ac	24.281 ha
61 ac	24.686 ha	62 ac	25.091 ha	63 ac	25.495 ha	64 ac	25.9 ha
65 ac	26.305 ha	66 ac	26.709 ha	67 ac	27.114 ha	68 ac	27.519 ha
69 ac	27.923 ha	70 ac	28.328 ha	71 ac	28.733 ha	72 ac	29.137 ha
73 ac	29.542 ha	74 ac	29.947 ha	75 ac	30.351 ha	76 ac	30.756 ha
77 ac	31.161 ha	78 ac	31.565 ha	79 ac	31.97 ha	80 ac	32.375 ha
81 ac	32.78 ha	82 ac	33.184 ha	83 ac	33.589 ha	84 ac	33.994 ha
85 ac	34.398 ha	86 ac	34.803 ha	87 ac	35.208 ha	88 ac	35.612 ha
89 ac	36.017 ha	90 ac	36.422 ha	91 ac	36.826 ha	92 ac	37.231 ha
93 ac	37.636 ha	94 ac	38.04 ha	95 ac	38.445 ha	96 ac	38.85 ha
97 ac	39.255 ha	98 ac	39.659 ha	99 ac	40.064 ha	100 ac	40.469 ha

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Checked by Calcovate · Formula tested against worked examples · Updated 7 Nov 2026 · How we check our calculators.