Convert Tan to Tsubo
Convert tan to tsubos instantly. 1 tan = 299.9987900054 tsubo — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Tsubo 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.
Tsubo
A tsubo is a Japanese unit of area equal to approximately 3.3058 m² (about 35.58 square feet). It is functionally identical to the Korean pyeong.
Defined as a 6-by-6 shaku square; the shaku is the traditional Japanese foot. Standardized as 400/121 m² in modern Japanese law.
Tsubos remain in widespread use in Japanese real estate, particularly for residential apartments and small commercial spaces. Property listings often cite both tsubo and square meters.
Traditional Japanese unit; legally retained in Japan for real estate.
Tan to Tsubo conversion formula
The relationship between tan and tsubos:
To convert tan to tsubos, multiply the value in tan by 299.9987900054. To reverse, multiply tsubos by 0.0033333468.
How to use this converter
Type a value into the calculator. The result in tsubos updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Tsubo to Tan converter for the reverse direction.
Step-by-step: convert tan to tsubos
- Write down the value in tan (tan).
- Multiply that value by the factor 299.9987900054.
- The product is the equivalent value in tsubos (tsubo).
- To reverse, multiply the tsubo value by 0.0033333468.
Worked examples
Example 1 — Convert 1 tan to tsubo:
1 × 299.9987900054 = 299.9987900054 tsubo
Example 2 — Convert 100 tan to tsubo:
100 × 299.9987900054 = 29999.8790005445 tsubo
Tan to Tsubo conversion table
Standard reference values for converting tan to tsubos:
| Tan [tan] | Tsubo [tsubo] |
|---|---|
| 0.01 | 2.9999879001 |
| 0.1 | 29.9998790005 |
| 1 | 299.9987900054 |
| 2 | 599.9975800109 |
| 3 | 899.9963700163 |
| 4 | 1199.9951600218 |
| 5 | 1499.9939500272 |
| 10 | 2999.9879000544 |
| 20 | 5999.9758001089 |
| 30 | 8999.9637001633 |
| 40 | 11999.9516002178 |
| 50 | 14999.9395002722 |
| 100 | 29999.8790005445 |
| 500 | 149999.3950027225 |
| 1000 | 299998.790005445 |
Frequently asked questions
How many tsubos is 1 tan?
How do I convert tan to tsubos?
How do I convert tsubos back to tan?
How many tsubos is 100 tan?
Popular area unit conversions
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Metric / SI (5 units)
Imperial / US Customary (3 units)
Sources & references
Conversion factor (1 tan = 299.9987900054 tsubo) 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.