Convert Koku (石) to millilitres
East Asia · East Asian Volume · historical · medieval
Historically reconstructed The unit is no longer in use and its value is reconstructed from historical and scholarly sources — treat it as indicative.
1 Koku (石) = 180,390 millilitres
millilitres = Koku (石) × 180,390
Convert any amount
Koku (石) to millilitres table
| Koku (石) | millilitres |
|---|---|
| 0.25 Koku (石) | 45,097.5 millilitres |
| 0.5 Koku (石) | 90,195 millilitres |
| 1 Koku (石) | 180,390 millilitres |
| 2 Koku (石) | 360,780 millilitres |
| 3 Koku (石) | 541,170 millilitres |
| 4 Koku (石) | 721,560 millilitres |
| 5 Koku (石) | 901,950 millilitres |
| 10 Koku (石) | 1,803,900 millilitres |
| 20 Koku (石) | 3,607,800 millilitres |
| 25 Koku (石) | 4,509,750 millilitres |
| 50 Koku (石) | 9,019,500 millilitres |
| 100 Koku (石) | 18,039,000 millilitres |
About the Koku (石)
Japanese rice measure. Defined feudal wealth. 1 Koku ≈ 180 liters.
- Symbol
- 石
- Value in SI
- 1 Koku (石) = 180.39 litre
- Typical use
- agriculture, trade
- Source
- Edo period standard
Every atlas conversion routes through the SI litre. See our methodology and data provenance pages for how these values are sourced and verified.
Related units and variant risk
Other east asian volume 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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.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 millilitres are in a Koku (石)?
1 Koku (石) = 180,390 millilitres. Multiply the number of Koku (石) by 180,390 to get millilitres.
What is Koku (石) used for?
Japanese rice measure. Defined feudal wealth. 1 Koku ≈ 180 liters. It is classified as historical and dates from the medieval period.
Is the Koku (石) value exact?
Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI litre, using the value published by Edo period standard, so the arithmetic itself introduces no rounding beyond the digits shown.
How reliable is this Koku (石) conversion?
Historically reconstructed — The unit is no longer in use and its value is reconstructed from historical and scholarly sources — treat it as indicative. Source: Edo period standard.
Cite this page
UnitConvertLab. (2026). Convert Koku (石) to millilitres. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/koku-to-milliliter
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