Convert Pyeong to Dunam (Ottoman)
Convert pyeongs to dunams instantly. 1 pyeong = 0.0024710719 dunam (ottoman) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Dunam (Ottoman) to Pyeong converter for the reverse conversion.
Units explained
Pyeong
A pyeong is a Korean unit of area equal to approximately 3.3058 m² (about 35.58 square feet).
Originated as a traditional East Asian land unit. Korean usage standardizes pyeong at 400/121 m² ≈ 3.3058 m². Defined as the area of a 6-by-6 Korean foot (cheok) square.
Pyeong is the primary unit for residential real estate in South Korea. Although the government tried to phase pyeong out in favor of square meters from 2007, the unit remains in widespread popular use, particularly for apartment sizes.
Traditional East Asian unit; remains in widespread Korean use despite government metric campaigns.
Dunam (Ottoman)
An Ottoman dunam was a historical unit of area used across the Ottoman Empire, approximately 1337.8 m². The value varied somewhat by region.
Originated as the area a yoke of oxen could plow in a day, a measure used across much of the Mediterranean. Standardized in different regional ways.
Ottoman dunams appear in pre-20th-century land records across the former Ottoman Empire. Modern usage has shifted to metric dunams (exactly 1000 m²).
Traditional Ottoman unit; largely superseded by metric dunam.
Pyeong to Dunam (Ottoman) conversion formula
The relationship between pyeongs and dunams:
To convert pyeongs to dunams, multiply the value in pyeongs by 0.0024710719. To reverse, multiply dunams by 404.6826789279.
How to use this converter
Type a value into the calculator. The result in dunams updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Dunam (Ottoman) to Pyeong converter for the reverse direction.
Step-by-step: convert pyeongs to dunams
- Write down the value in pyeongs (pyeong).
- Multiply that value by the factor 0.0024710719.
- The product is the equivalent value in dunams (dunam).
- To reverse, multiply the dunam (ottoman) value by 404.6826789279.
Worked examples
Example 1 — Convert 1 pyeong to dunam:
1 × 0.0024710719 = 0.0024710719 dunam
Example 2 — Convert 100 pyeong to dunam:
100 × 0.0024710719 = 0.2471071909 dunam
Real-world example — Metric distance scale-up
One thousand pyeongs equals one dunam (ottoman) — the running distance for a 1K race or the standard metric kilometre-scale step. The simple thousand-fold conversion is the most-used metric distance translation.
1000 pyeong × 0.0024710719 = 2.4710719091 dunam
Real-world example — Imperial mile arithmetic
5,280 pyeongs equals exactly one dunam (ottoman). American hikers tracking elevation gain in the smaller unit but trail length in the larger one use this constant every time they read a topographic map.
5280 pyeong × 0.0024710719 = 13.0472596801 dunam
Real-world example — Imperial yard-to-mile scale
1,760 pyeongs equals exactly one dunam (ottoman). American athletes and surveyors use this conversion to translate distances quoted in the smaller imperial unit into recognizable fractions of the larger geographic one.
1760 pyeong × 0.0024710719 = 4.34908656 dunam
Pyeong to Dunam (Ottoman) conversion table
Standard reference values for converting pyeongs to dunams:
| Pyeong [pyeong] | Dunam (Ottoman) [dunam] |
|---|---|
| 0.01 | 2.471072e-5 |
| 0.1 | 0.0002471072 |
| 1 | 0.0024710719 |
| 2 | 0.0049421438 |
| 3 | 0.0074132157 |
| 4 | 0.0098842876 |
| 5 | 0.0123553595 |
| 10 | 0.0247107191 |
| 20 | 0.0494214382 |
| 30 | 0.0741321573 |
| 40 | 0.0988428764 |
| 50 | 0.1235535955 |
| 100 | 0.2471071909 |
| 500 | 1.2355359546 |
| 1000 | 2.4710719091 |
Frequently asked questions
How many dunams is 1 pyeong?
How do I convert pyeongs to dunams?
How do I convert dunams back to pyeongs?
How many dunams is 100 pyeongs?
Popular area unit conversions
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Metric / SI (5 units)
Imperial / US Customary (3 units)
Sources & references
Conversion factor (1 pyeong = 0.0024710719 dunam) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.