🗺️ Acres to Dunam (Ottoman / Old Palestine) Converter

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Converted Value
1,100.53

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⚡ Acres to Dunam (Ottoman / Old Palestine): the quick answer

1 ac = 4.40211 dunam-o 1 acre equals 4.40211 dunam (Ottoman / old Palestine)

To convert acres to dunam (Ottoman / old Palestine), multiply the value by 4.40211. To go the other way, multiply dunam (Ottoman / old Palestine) by 0.227164 to get acres.

↔ Convert dunam (Ottoman / old Palestine) to acres instead

🧮 Formula

Acres to Dunam (Ottoman / Old Palestine)
dunam-o = ac × 4.40211
Dunam (Ottoman / Old Palestine) to Acres
ac = dunam-o × 0.227164

Where

  • ac = the area in acres
  • dunam-o = the area in dunam (Ottoman / old Palestine)
Every unit here is defined by its area in square meters, so the conversion factor is (square meters per acre) ÷ (square meters per dunam (Ottoman / old Palestine)).

📊 Acres to Dunam (Ottoman / Old Palestine) conversion table

Acres (ac)Dunam (Ottoman / Old Palestine) (dunam-o)
1 ac4.40211 dunam-o
2 ac8.80421 dunam-o
5 ac22.0105 dunam-o
10 ac44.0211 dunam-o
20 ac88.0421 dunam-o
50 ac220.105 dunam-o
100 ac440.211 dunam-o
500 ac2,201.05 dunam-o
1,000 ac4,402.11 dunam-o

✏️ Worked examples

Convert 25 acres to dunam (Ottoman / old Palestine)

25 ac × 4.40211 = 110.053 dunam-o

Try this example →

Convert 250 acres to dunam (Ottoman / old Palestine)

250 ac × 4.40211 = 1,100.53 dunam-o

Try this example →

📘 About these units

Acre (ac). An acre is 43,560 square feet (4,046.8564 m²), used for land in the US, UK, India, Canada and Australia.

Dunam (Ottoman / old Palestine) (dunam-o). The old Ottoman dunam of Palestine was about 919.3 m² before the metric dunam was adopted in 1928. Used in: Asia — Middle East (dunam).

❓ Frequently asked questions

How many dunam (Ottoman / old Palestine) are in one acre?

There are 4.40211 dunam (Ottoman / old Palestine) in one acre.

How do I convert acres to dunam (Ottoman / old Palestine)?

Multiply the number of acres by 4.40211. For example, 10 acres equal 44.0211 dunam (Ottoman / old Palestine).

How many acres are in one dunam (Ottoman / old Palestine)?

One dunam (Ottoman / old Palestine) equals 0.227164 acres.

What people are saying
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Anonymous · 04 Oct 2026