Convert square yards to Jō (畳/Tatami)
East Asia · East Asian Land · active · modern
Conventional value The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact.
1 square yard = 0.505824 Jō (畳/Tatami)
Jō (畳/Tatami) = square yards × 0.50582417
Convert any amount
square yards to Jō (畳/Tatami) table
| square yards | Jō (畳/Tatami) |
|---|---|
| 0.25 square yards | 0.126456 Jō (畳/Tatami) |
| 0.5 square yards | 0.252912 Jō (畳/Tatami) |
| 1 square yard | 0.505824 Jō (畳/Tatami) |
| 2 square yards | 1.01165 Jō (畳/Tatami) |
| 3 square yards | 1.51747 Jō (畳/Tatami) |
| 4 square yards | 2.0233 Jō (畳/Tatami) |
| 5 square yards | 2.52912 Jō (畳/Tatami) |
| 10 square yards | 5.05824 Jō (畳/Tatami) |
| 20 square yards | 10.1165 Jō (畳/Tatami) |
| 25 square yards | 12.6456 Jō (畳/Tatami) |
| 50 square yards | 25.2912 Jō (畳/Tatami) |
| 100 square yards | 50.5824 Jō (畳/Tatami) |
About the Jō (畳/Tatami)
Japanese room measure = 1 Tatami mat ≈ 1.65 m².
- Symbol
- 畳
- Value in SI
- 1 Jō (畳/Tatami) = 1.653 square metre
- Typical use
- surveying
- Source
- UnitConvertLab measurement atlas
Every atlas conversion routes through the SI square metre. See our methodology and data provenance pages for how these values are sourced and verified.
Related units and variant risk
Other east asian land units in the East Asia family, least settled first. If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.
Related conversions
Frequently asked
How many Jō (畳/Tatami) are in a square yard?
1 square yard = 0.505824 Jō (畳/Tatami). Multiply the number of square yards by 0.50582417 to get Jō (畳/Tatami).
What is Jō (畳/Tatami) used for?
Japanese room measure = 1 Tatami mat ≈ 1.65 m². It is classified as active and dates from the modern period.
Is the Jō (畳/Tatami) value exact?
Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI square metre, so the arithmetic itself introduces no rounding beyond the digits shown.
How reliable is this Jō (畳/Tatami) conversion?
Conventional value — The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact. Source: UnitConvertLab measurement atlas.
Cite this page
UnitConvertLab. (2026). Convert square yards to Jō (畳/Tatami). UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/square-yard-to-jo
Report an incorrect value or source
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