🗺️ Area converter

Acre to Hectare Converter

Convert acres (ac) to hectares (ha) instantly with the exact formula, a conversion table and chart.

ac

Results

Hectares
0.40468564224 ha
Same value in every unit

📊 Acre to Hectare chart

Acre to Hectare — plotted against acre (ac).

How to convert acres to hectares

To convert acres to hectares, multiply by 0.40468564224. Area conversions are essential for real estate, flooring, land surveys, farming and map reading.

ha = ac × 0.40468564224 ac = ha ÷ 0.40468564224
Acre to Hectare conversion – ac to ha formula illustration
Acre (ac) → Hectare (ha) at a glance.

Acre to Hectare conversion table

Acre (ac)Hectare (ha)
0.1 ac0.040468564224 ha
0.5 ac0.20234282112 ha
1 ac0.40468564224 ha
2 ac0.80937128448 ha
3 ac1.21405692672 ha
4 ac1.61874256896 ha
5 ac2.0234282112 ha
10 ac4.0468564224 ha
20 ac8.0937128448 ha
25 ac10.117141056 ha
50 ac20.234282112 ha
100 ac40.468564224 ha
500 ac202.34282112 ha
1,000 ac404.68564224 ha

About the units

Acre (ac)

An acre equals 43,560 square feet (4,046.8564224 m²) and is used for land in the US and UK.

Hectare (ha)

A hectare equals 10,000 m² (a 100 m × 100 m square) and is the metric unit for farmland.

How to use this converter

  1. Type the number of acres (ac) in the input box.
  2. The result in hectares appears instantly — no button needed.
  3. See the same value in every other area unit just below.
  4. Use “Swap units” to convert hectares back to acres.

Tips for better results

  • Double-check which system a unit belongs to (for example US vs UK gallons).
  • Use the swap button to convert in the opposite direction instantly.
  • Bookmark the conversions you use most — each pair has its own page.

Frequently asked questions

How many hectares are in one acre?

One acre equals 0.40468564224 hectares. 0.40468564224 is the exact factor used by this converter.

How do I convert acres to hectares?

Multiply the value in acres by 0.40468564224. To go the other way, multiply hectares by 2.47105381467.

What is 10 ac in ha?

10 ac = 4.0468564224 ha. Also, 5 ac = 2.0234282112 ha and 100 ac = 40.468564224 ha.

What is the difference between a acre and a hectare?

An acre equals 43,560 square feet (4,046.8564224 m²) and is used for land in the US and UK. A hectare equals 10,000 m² (a 100 m × 100 m square) and is the metric unit for farmland.

Is this tool free and private?

Yes — the Acre to Hectare is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.

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