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Hectares to Acres Converter

Convert land area between hectares, acres, and common reference units for listings or surveys.

Formula shown0 inputs definedUpdated Nov 2025By CalcuTotal TeamFree, no sign-up

Quick Summary

Use this when you need:

Translate agricultural plots from hectares to acres for US lenders
Reconcile survey documents that mix hectares, acres, and square feet
Prep real-estate listings for international buyers

You’ll get:Area

How this is calculated

Formula:

area_target = area_source

In plain language:

Areas are normalized to square meters, then expressed as hectares, acres, or nearby metric/imperial units for cross-checking paperwork.

The formula is always visible so you can verify the math and explain your numbers to anyone who asks.

What these terms mean

Area

Area used in the calculation.

When to use this calculator

Translate agricultural plots from hectares to acres for US lenders
Reconcile survey documents that mix hectares, acres, and square feet
Prep real-estate listings for international buyers

Last updated: November 27, 2025

Hectares to acres conversion explained

Land listings, farm leases, and environmental reports often switch between hectares and acres. This calculator converts either direction and shows square meters, square kilometers, square feet, and square yards for quick context.

How the conversion works

A hectare is defined as $10{,}000\,\text{m}^2$ . An international acre is exactly $4046.8564224\,\text{m}^2$ . Therefore,

$1\,\text{ha} = \frac{10{,}000}{4046.8564224} \approx 2.47105381\,\text{acres}$

To convert acres to hectares,

$\text{ha} = \text{acres} \times \frac{4046.8564224}{10{,}000}$

The calculator also supports US survey acres (4046.87261 m²) for legacy deeds.

Units and conversions

Unit	Symbol	Relation
Hectare	ha	$1\,\text{ha} = 10{,}000\,\text{m}^2$
Acre (international)	acre	$1\,\text{acre} = 4046.8564224\,\text{m}^2$
Acre (US survey)	acre (US)	$1\,\text{acre (US)} = 4046.87261\,\text{m}^2$
Square meter	m²	Base area unit
Square kilometer	km²	$1\,\text{km}^2 = 1{,}000{,}000\,\text{m}^2$
Square foot	ft²	$1\,\text{ft}^2 = 0.09290304\,\text{m}^2$
Square yard	yd²	$1\,\text{yd}^2 = 0.83612736\,\text{m}^2$
Square mile	mi²	$1\,\text{mi}^2 = 2{,}589{,}988.110336\,\text{m}^2$

Worked examples

1 hectare to acres

$1 \times 10{,}000 / 4046.8564224 \approx 2.47105\,\text{acres}$

5 acres to hectares

$5 \times 4046.8564224 / 10{,}000 \approx 2.02343\,\text{ha}$

Half-hectare to square feet

$0.5 \times 10{,}000 / 0.09290304 \approx 53{,}819.6\,\text{ft}^2$

Tips and pitfalls

Confirm whether deeds use international or US survey acres; the difference is small but can matter on legal documents.
Keep 4–6 decimals when converting large parcels; rounding early can shift valuations.
For GIS work, keep data in square meters and convert only for reports to avoid cumulative rounding.

References and further reading

Frequently Asked Questions

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Calculator info

Version:: v1.0.0
Last reviewed:: Nov 27, 2025
Sensitivity:: low
References:: 2

Last updated: November 27, 2025

Hectares to acres conversion explained

How the conversion works

A hectare is defined as $10{,}000\,\text{m}^2$ . An international acre is exactly $4046.8564224\,\text{m}^2$ . Therefore,

$1\,\text{ha} = \frac{10{,}000}{4046.8564224} \approx 2.47105381\,\text{acres}$

To convert acres to hectares,

$\text{ha} = \text{acres} \times \frac{4046.8564224}{10{,}000}$

The calculator also supports US survey acres (4046.87261 m²) for legacy deeds.

Units and conversions

Unit	Symbol	Relation
Hectare	ha	$1\,\text{ha} = 10{,}000\,\text{m}^2$
Acre (international)	acre	$1\,\text{acre} = 4046.8564224\,\text{m}^2$
Acre (US survey)	acre (US)	$1\,\text{acre (US)} = 4046.87261\,\text{m}^2$
Square meter	m²	Base area unit
Square kilometer	km²	$1\,\text{km}^2 = 1{,}000{,}000\,\text{m}^2$
Square foot	ft²	$1\,\text{ft}^2 = 0.09290304\,\text{m}^2$
Square yard	yd²	$1\,\text{yd}^2 = 0.83612736\,\text{m}^2$
Square mile	mi²	$1\,\text{mi}^2 = 2{,}589{,}988.110336\,\text{m}^2$

Worked examples

1 hectare to acres

$1 \times 10{,}000 / 4046.8564224 \approx 2.47105\,\text{acres}$

5 acres to hectares

$5 \times 4046.8564224 / 10{,}000 \approx 2.02343\,\text{ha}$

Half-hectare to square feet

$0.5 \times 10{,}000 / 0.09290304 \approx 53{,}819.6\,\text{ft}^2$

Tips and pitfalls

Confirm whether deeds use international or US survey acres; the difference is small but can matter on legal documents.
Keep 4–6 decimals when converting large parcels; rounding early can shift valuations.
For GIS work, keep data in square meters and convert only for reports to avoid cumulative rounding.

Quick Summary

Calculator Tool

How this is calculated

What these terms mean

Area

When to use this calculator

Hectares to acres conversion explained

How the conversion works

Units and conversions

Worked examples

Tips and pitfalls

References and further reading

Frequently Asked Questions

Related Calculators

Acres to Hectares Converter

Cent to Square Meter Converter

Area Converter

Acreage Calculator

Acres to Square Feet Converter

Gaj to Square Yard Converter

Was this calculator helpful?

Found an error?

Calculator info

Hectares to acres conversion explained

How the conversion works

Units and conversions

Worked examples

Tips and pitfalls

References and further reading

Frequently Asked Questions

Related Calculators

Acres to Hectares Converter

Cent to Square Meter Converter

Area Converter

Acreage Calculator

Acres to Square Feet Converter

Gaj to Square Yard Converter

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