Square Feet to Tsubo Converter
Area · unit-converter
Convert Square Feet to Tsubo with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use square-meter-based definitions (international feet / yard standards, acre, hectare, and regional units like pyeong/tsubo).
Calculator
From: Square Feet (ft2)
To: Tsubo (tsubo)
About Square Feet
Square feet (ft²) measure area; one ft² is a square with sides of 0.3048 m (international feet-based definitions). Real estate, interior design, and HVAC often use square feet.
About Tsubo
Tsubo is a Japanese traditional area unit used in architecture and property contexts; 1 tsubo is about 3.305785 m².
How to convert square feet to tsubo
1 square feet is equal to 0.0281031696 tsubo:
1 ft2 = (0.09290304 m² ÷ 3.3057851239669422 m²) tsubo = 0.0281031696 tsubo
Each square feet is defined as 0.09290304 m² and each tsubo as 3.3057851239669422 m², so one ft2 equals 0.09290304 ÷ 3.3057851239669422 tsubo = 0.0281031696 tsubo.
Let a(ft2) be the numeric value of the same area measured in Square Feet (ft2), and a(tsubo) the value in Tsubo (tsubo). Then:
a(tsubo) = a(ft2) × (0.09290304 / 3.3057851239669422)
Equivalently, divide by how many ft2 fit into one tsubo (m² per tsubo divided by m² per ft2):
a(tsubo) = a(ft2) ÷ 35.58317493127181
Or: tsubo = square feet ÷ 35.58317493127181
Examples
Example #1: Convert 20 ft2 to tsubo
20 ft2 = 20 ft2 × (0.09290304/3.3057851239669422) tsubo = 0.562063392 tsubo
20 ft2 = 20 ft2 ÷ 35.58317493127181 = 0.562063392 tsubo
Example #2: Convert 50 ft2 to tsubo
50 ft2 = 50 ft2 × (0.09290304/3.3057851239669422) tsubo = 1.40515848 tsubo
50 ft2 = 50 ft2 ÷ 35.58317493127181 = 1.40515848 tsubo
Summary
To convert Square Feet to Tsubo, multiply the value in ft2 by the ratio of square meters per ft2 divided by square meters per tsubo. Equivalently: value_tsubo = value_ft2 × (0.09290304 / 3.3057851239669422). Numerically, 1 ft2 equals 0.028103169600000002 tsubo.
Relationship context
Both units belong to US customary / imperial area measures. Relationships such as 9 ft² per yd² and 43,560 ft² per acre are exact under standard definitions. This tool uses SI-based square-meter factors for consistency.
Conversion tables
| Square Feet (ft2) | Tsubo (tsubo) |
|---|---|
| 0.1 | 0.002810317 |
| 1 | 0.0281031696 |
| 2 | 0.0562063392 |
| 3 | 0.0843095088 |
| 4 | 0.1124126784 |
| 5 | 0.140515848 |
| 6 | 0.1686190176 |
| 7 | 0.1967221872 |
| 8 | 0.2248253568 |
| 9 | 0.2529285264 |
| Square Feet (ft2) | Tsubo (tsubo) |
|---|---|
| 10 | 0.281031696 |
| 20 | 0.562063392 |
| 30 | 0.843095088 |
| 40 | 1.124126784 |
| 50 | 1.40515848 |
| 60 | 1.686190176 |
| 70 | 1.967221872 |
| 80 | 2.248253568 |
| 90 | 2.529285264 |
| 100 | 2.81031696 |