Convert acres to dunams

1 ac=4.04686dunam

Use the converter below to change any acres value into dunams instantly — with formula, conversion table, and real-world examples.

You have

Equals

4.046856

Conversion formula

Forward

dunams = acres × 4.04686

Reverse

acres = dunams × 0.2471

Example: 10 ac × 4.04686 = 40.4686 dunam.

About both units

From

Acre

The acre equals 4046.86 square metres — originally the area a team of oxen could plough in a day. It is the standard rural land unit in the US, UK and Canada. Suburban American lots are typically a quarter to half an acre. 640 acres equal one square mile.

Real-world: A US suburban lot is 0.25–0.5 acre. A standard UK rural property might be 5 acres. A football pitch is about 1.8 acres.

Read full acre reference →

Dunam

dunam

The metric dunam equals 1000 square metres exactly. It is the standard land unit in Israel, Palestine, Turkey and parts of the former Ottoman Empire. Other regional "dunams" have existed historically, but the metric dunam (1000 m²) is the modern standard.

Real-world: An Israeli small farm might be 50 dunams (5 ha). Agricultural yields sometimes quoted per dunam.

Read full dunam reference →

Acre to Dunam conversion table

Common acres to dunams values for quick reference.

Acre (ac)	Dunam (dunam)
1 ac	4.04686 dunam
5 ac	20.2343 dunam
10 ac	40.4686 dunam
50 ac	202.343 dunam
100 ac	404.686 dunam
500 ac	2,023.43 dunam
1,000 ac	4,046.86 dunam
5,000 ac	20,234.28 dunam
10,000 ac	40,468.56 dunam
50,000 ac	202,342.82 dunam

Tips & common mistakes

Quick tips

1 acre = 43,560 ft² = 0.4047 ha.
640 acres = 1 square mile — a "section" in US land survey.
An acre is 43,560 ft² — a useful number for US real-estate calculations.

Avoid these

Using "acre" in modern European property — use hectares or m² instead.
Assuming an acre is a specific shape — it is only an area (any shape).
Multiplying acres by 4000 m² — correct value is 4046.86.

Frequently asked questions

How many dunams in a acre?

One acre equals 4.04686 dunams.

How do I convert acres to dunams?

Multiply the acre value by 4.04686 to get the equivalent in dunams.

What is 100 acres in dunams?

100 acres equals 404.686 dunams.

Is a acre bigger than a dunam?

Yes. 1 acre equals 4.04686 dunams, so one acre is larger.

How to convert acres to dunams without a calculator?

Multiply by 4.05 for a quick estimate; use a calculator for precise results.

Related area conversions

📊 See full comparison matrix →

Conversions in other categories

WeightKilogram → Pound LengthKilometer → Mile TemperatureCelsius → Fahrenheit VolumeLiter → US Gallon SpeedKilometer per Hour → Mile per Hour EnergyKilojoule → Kilocalorie PressureBar → Pound per Square Inch PowerKilowatt → Mechanical Horsepower