Acres to Dunam converter

1 acre equals 4.046856422 dunams. 1 dunam = 0.2471053815 ac.

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How to convert acres to dunams

dunam = ac × 4.046856422

Example: 5 ac × 4.046856422 = 20.23428211 dunam

Acres to Dunam table

Acres (ac)Dunam (dunam)
0.5 ac2.0234282 dunam
1 ac4.0468564 dunam
2 ac8.0937128 dunam
3 ac12.140569 dunam
4 ac16.187426 dunam
5 ac20.234282 dunam
6 ac24.281139 dunam
7 ac28.327995 dunam
8 ac32.374851 dunam
9 ac36.421708 dunam
10 ac40.468564 dunam
15 ac60.702846 dunam
20 ac80.937128 dunam
25 ac101.17141 dunam
30 ac121.40569 dunam
40 ac161.87426 dunam
50 ac202.34282 dunam
75 ac303.51423 dunam
100 ac404.68564 dunam
250 ac1,011.7141 dunam
500 ac2,023.4282 dunam
1,000 ac4,046.8564 dunam

About these units

Acres (ac): An acre is 43,560 square feet, or exactly 4,046.8564224 m². It is the usual unit for farmland and plots in the US, UK and South Asia.

Dunam (dunam): The metric dunam (also dunum or donum) is 1,000 m², used for land in Jordan, Palestine, Israel, Iraq, Syria, Lebanon and Turkey.

Frequently asked questions

How many dunams are in 1 acre?

1 acre equals 4.046856422 dunams.

How do I convert ac to dunam?

Multiply the value in acres by 4.046856422. For example, 5 ac × 4.046856422 = 20.23428211 dunam.

How do I convert dunams back to acres?

Multiply by 0.2471053815 (or divide by 4.046856422). 1 dunam = 0.2471053815 ac.

What is an acre?

An acre is 43,560 square feet, or exactly 4,046.8564224 m². It is the usual unit for farmland and plots in the US, UK and South Asia.

Conversion factors come from exact international definitions (NIST SP 811, BIPM) where they exist. Results show up to 10 significant digits. Need every area unit at once? Use the Land Area Converter.