Convert Tsubo to Square Meter
Convert tsubos to square meters instantly. 1 tsubo = 3.3058 square meter — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Meter 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.
Square Meter
A square meter is the SI base unit of area, defined as the area of a square with sides of one meter. It is the universal scientific unit for area.
Defined by squaring the meter, which was redefined in 2019 in terms of the speed of light. The meter itself was originally proposed by the French Academy of Sciences in 1791 as 1/10,000,000 of the distance from the equator to the North Pole.
Square meters are the universal SI unit for area, used in real estate (most countries outside the US/UK), construction, physics, engineering, materials science, biology, and nearly all scientific contexts worldwide.
Meter adopted as SI base unit in 1960; current exact definition via speed of light dates to 2019.
Tsubo to Square Meter conversion formula
The relationship between tsubos and square meters:
To convert tsubos to square meters, multiply the value in tsubos by 3.3058. To reverse, multiply square meters by 0.3024986388.
How to use this converter
Type a value into the calculator. The result in square meters updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Square Meter to Tsubo converter for the reverse direction.
Step-by-step: convert tsubos to square meters
- Write down the value in tsubos (tsubo).
- Multiply that value by the factor 3.3058.
- The product is the equivalent value in square meters (m²).
- To reverse, multiply the square meter value by 0.3024986388.
Worked examples
Example 1 — Convert 1 tsubo to m²:
1 × 3.3058 = 3.3058 m²
Example 2 — Convert 100 tsubo to m²:
100 × 3.3058 = 330.58 m²
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 × 3.3058 = 3.3058 m²
Real-world example — Adult height conversion
A 1.8-tsubo-tall person measures a value in square meters that converts the height to the unit favoured by American forms, schools, or driver's licences. This is daily routine for anyone living between metric and imperial systems.
1.8 tsubo × 3.3058 = 5.95044 m²
Real-world example — Fabric purchase length
Two tsubos of fabric equals a value in square meters essential for tailors and textile buyers sourcing material from international suppliers that quote in different units.
2 tsubo × 3.3058 = 6.6116 m²
Tsubo to Square Meter conversion table
Standard reference values for converting tsubos to square meters:
| Tsubo [tsubo] | Square Meter [m²] |
|---|---|
| 0.01 | 0.033058 |
| 0.1 | 0.33058 |
| 1 | 3.3058 |
| 2 | 6.6116 |
| 3 | 9.9174 |
| 4 | 13.2232 |
| 5 | 16.529 |
| 10 | 33.058 |
| 20 | 66.116 |
| 30 | 99.174 |
| 40 | 132.232 |
| 50 | 165.29 |
| 100 | 330.58 |
| 500 | 1652.9 |
| 1000 | 3305.8 |
Frequently asked questions
How many square meters is 1 tsubo?
How do I convert tsubos to square meters?
How do I convert square meters back to tsubos?
How many square meters is 100 tsubos?
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Imperial / US Customary (3 units)
Sources & references
Conversion factor (1 tsubo = 3.3058 m²) 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.