Convert Tsubo to Tan
Convert tsubos to tan instantly. 1 tsubo = 0.0033333468 tan — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Tan to Tsubo converter for the reverse conversion.
Units explained
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
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 to Tan conversion formula
The relationship between tsubos and tan:
To convert tsubos to tan, multiply the value in tsubos by 0.0033333468. To reverse, multiply tan by 299.9987900054.
How to use this converter
Type a value into the calculator. The result in tan updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Tan to Tsubo converter for the reverse direction.
Step-by-step: convert tsubos to tan
- Write down the value in tsubos (tsubo).
- Multiply that value by the factor 0.0033333468.
- The product is the equivalent value in tan (tan).
- To reverse, multiply the tan value by 299.9987900054.
Worked examples
Example 1 — Convert 1 tsubo to tan:
1 × 0.0033333468 = 0.0033333468 tan
Example 2 — Convert 100 tsubo to tan:
100 × 0.0033333468 = 0.3333346778 tan
Real-world example — Fabric purchase length
Two tsubos of fabric equals a value in tan essential for tailors and textile buyers sourcing material from international suppliers that quote in different units.
2 tsubo × 0.0033333468 = 0.0066666936 tan
Real-world example — Maritime depth conversion
A 10-tsubo sounding depth converts cleanly into tan. Recreational divers and sailors translate between the two units whenever they read legacy charts against modern depth-sounder displays.
10 tsubo × 0.0033333468 = 0.0333334678 tan
Real-world example — Reference scenario in case of fallback
Conversion between human-scale length units is the everyday workflow of architecture, athletics, and apparel design — three of the most common contexts that span metric and imperial systems.
1 tsubo × 0.0033333468 = 0.0033333468 tan
Tsubo to Tan conversion table
Standard reference values for converting tsubos to tan:
| Tsubo [tsubo] | Tan [tan] |
|---|---|
| 0.01 | 3.333347e-5 |
| 0.1 | 0.0003333347 |
| 1 | 0.0033333468 |
| 2 | 0.0066666936 |
| 3 | 0.0100000403 |
| 4 | 0.0133333871 |
| 5 | 0.0166667339 |
| 10 | 0.0333334678 |
| 20 | 0.0666669356 |
| 30 | 0.1000004033 |
| 40 | 0.1333338711 |
| 50 | 0.1666673389 |
| 100 | 0.3333346778 |
| 500 | 1.6666733889 |
| 1000 | 3.3333467778 |
Frequently asked questions
How many tan is 1 tsubo?
How do I convert tsubos to tan?
How do I convert tan back to tsubos?
How many tan is 100 tsubos?
Popular area unit conversions
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Metric / SI (5 units)
Imperial / US Customary (3 units)
Sources & references
Conversion factor (1 tsubo = 0.0033333468 tan) 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.