tatami mat to acre
Live tatami mat (畳) to acre (ac) converter. Plus a 10-value reference table and FAQs.
Conversion table
Ten sample values from tatami mat to acre. Use the converter above for arbitrary values.
| tatami mat (畳) | → | acre (ac) |
|---|---|---|
| 0.001 畳 | → | 4.0926e-7 ac |
| 0.01 畳 | → | 4.0926e-6 ac |
| 0.1 畳 | → | 4.0926e-5 ac |
| 0.5 畳 | → | 0.000205 ac |
| 1 畳 | → | 0.000409 ac |
| 2 畳 | → | 0.000819 ac |
| 5 畳 | → | 0.002046 ac |
| 10 畳 | → | 0.004093 ac |
| 100 畳 | → | 0.040926 ac |
| 1,000 畳 | → | 0.409256 ac |
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 acre
4,047 m². US farmland and lot size.
How tatami mat to acre conversion works
Both units belong to Area. Unitbox first expresses the input in the category reference unit (m²), then expresses that same quantity in acre.
The right unit depends on the convention used by your industry, country, instrument, or source document.
Unit definitions and conversion factors are maintained in the Unitbox methodology. Last reviewed with the current conversion dataset.
Frequently asked questions
Frequently Asked Questions
How do I convert tatami mat to acre?
Multiply the tatami mat value by 0.000409 to get it in acre. For example, 10 畳 = 0.0041 ac.
What is 1 畳 in ac?
1 畳 = 0.000409 ac.
What is 100 畳 in ac?
100 畳 = 0.0409 ac.
What is the formula?
Linear: multiply by 0.000409 (the unit factor ratio).
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