Convert Koku (石) to US gallons
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) = 47.654 US gallons
US gallons = Koku (石) × 47.653997
Convert any amount
Koku (石) to US gallons table
| Koku (石) | US gallons |
|---|---|
| 0.25 Koku (石) | 11.9135 US gallons |
| 0.5 Koku (石) | 23.827 US gallons |
| 1 Koku (石) | 47.654 US gallons |
| 2 Koku (石) | 95.308 US gallons |
| 3 Koku (石) | 142.962 US gallons |
| 4 Koku (石) | 190.616 US gallons |
| 5 Koku (石) | 238.27 US gallons |
| 10 Koku (石) | 476.54 US gallons |
| 20 Koku (石) | 953.08 US gallons |
| 25 Koku (石) | 1,191.35 US gallons |
| 50 Koku (石) | 2,382.7 US gallons |
| 100 Koku (石) | 4,765.4 US gallons |
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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.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 US gallons are in a Koku (石)?
1 Koku (石) = 47.654 US gallons. Multiply the number of Koku (石) by 47.653997 to get US gallons.
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 US gallons. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/koku-to-us-gallon
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