Convert Tan to Feddan
Convert tan to feddans instantly. 1 tan = 0.236080965 feddan — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Feddan to Tan converter for the reverse conversion.
Units explained
Tan
A tan is a Japanese unit of area equal to approximately 991.74 m². It equals 300 tsubo, or 1/10 chō.
Traditional Japanese agricultural unit. The tan was the standard rice paddy size in pre-modern Japan.
Tan appears in Japanese rural property records and historical land descriptions. Used alongside chō and tsubo in Japanese agricultural documentation.
Traditional Japanese unit; standardized via the tsubo definition.
Feddan
A feddan is an Egyptian unit of land area equal to approximately 4200.83 m² (about 1.038 acres). Used in Egypt, Sudan, Syria, and Oman.
Originated as an Egyptian agricultural unit. Standardized at 4200.83 m² in modern Egyptian law (specifically, 333.33 qasaba squared).
Feddans are the primary unit for agricultural land in Egypt and several Arab countries. The conversion to hectares (1 feddan ≈ 0.42 hectare) is widely known regionally.
Standardized in modern Egyptian land law.
Tan to Feddan conversion formula
The relationship between tan and feddans:
To convert tan to feddans, multiply the value in tan by 0.236080965. To reverse, multiply feddans by 4.2358349399.
How to use this converter
Type a value into the calculator. The result in feddans updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Feddan to Tan converter for the reverse direction.
Step-by-step: convert tan to feddans
- Write down the value in tan (tan).
- Multiply that value by the factor 0.236080965.
- The product is the equivalent value in feddans (feddan).
- To reverse, multiply the feddan value by 4.2358349399.
Worked examples
Example 1 — Convert 1 tan to feddan:
1 × 0.236080965 = 0.236080965 feddan
Example 2 — Convert 100 tan to feddan:
100 × 0.236080965 = 23.6080964952 feddan
Tan to Feddan conversion table
Standard reference values for converting tan to feddans:
| Tan [tan] | Feddan [feddan] |
|---|---|
| 0.01 | 0.0023608096 |
| 0.1 | 0.0236080965 |
| 1 | 0.236080965 |
| 2 | 0.4721619299 |
| 3 | 0.7082428949 |
| 4 | 0.9443238598 |
| 5 | 1.1804048248 |
| 10 | 2.3608096495 |
| 20 | 4.721619299 |
| 30 | 7.0824289486 |
| 40 | 9.4432385981 |
| 50 | 11.8040482476 |
| 100 | 23.6080964952 |
| 500 | 118.0404824761 |
| 1000 | 236.0809649522 |
Frequently asked questions
How many feddans is 1 tan?
How do I convert tan to feddans?
How do I convert feddans back to tan?
How many feddans is 100 tan?
Popular area unit conversions
Convert Tan to other area units
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Metric / SI (5 units)
Imperial / US Customary (3 units)
Sources & references
Conversion factor (1 tan = 0.236080965 feddan) 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 Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.