tatami mat to tsubo

Live tatami mat (畳) to tsubo (坪) converter. Plus a 10-value reference table and FAQs.

tatami mat
tsubo
1 畳 = 0.501坪

Conversion table

Ten sample values from tatami mat to tsubo. Use the converter above for arbitrary values.

tatami mat (畳)tsubo (坪)
0.001 0.000501
0.01 0.00501
0.1 0.0501
0.5 0.2505
1 0.501
2 1.002001
5 2.505002
10 5.010005
100 50.10005
1,000 501.0005

About the tatami mat

One tatami mat. Edo-period (江戸間) standard 1.6562 m², used here.

Note: Tatami size varies by region: 江戸間 1.6562 m², 中京間 1.7412 m², 京間 1.8181 m². This site converts using the 江戸間 standard.

About the tsubo

400/121 m² ≈ 3.305785 m². Japanese (and Korean pyeong) land/real-estate area unit.

Note: 1 tsubo = 400/121 m² = 3.305785 m², a 6-shaku × 6-shaku square. Roughly 2 Edo-period tatami mats.

Frequently asked questions

Frequently Asked Questions

How do I convert tatami mat to tsubo?

Multiply the tatami mat value by 0.501 to get it in tsubo. For example, 10 畳 = 5.01 坪.

What is 1 畳 in 坪?

1 畳 = 0.501 坪.

What is 100 畳 in 坪?

100 畳 = 50.1 坪.

What is the formula?

Linear: multiply by 0.501 (the unit factor ratio).

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