Convert US gallons to Cup (Japanese)
East Asia · Cooking Measures · active · modern
Conventional value The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact.
1 US gallon = 18.9271 Cup (Japanese)
Cup (Japanese) = US gallons × 18.927059
Convert any amount
US gallons to Cup (Japanese) table
| US gallons | Cup (Japanese) |
|---|---|
| 0.25 US gallons | 4.73176 Cup (Japanese) |
| 0.5 US gallons | 9.46353 Cup (Japanese) |
| 1 US gallon | 18.9271 Cup (Japanese) |
| 2 US gallons | 37.8541 Cup (Japanese) |
| 3 US gallons | 56.7812 Cup (Japanese) |
| 4 US gallons | 75.7082 Cup (Japanese) |
| 5 US gallons | 94.6353 Cup (Japanese) |
| 10 US gallons | 189.271 Cup (Japanese) |
| 20 US gallons | 378.541 Cup (Japanese) |
| 25 US gallons | 473.176 Cup (Japanese) |
| 50 US gallons | 946.353 Cup (Japanese) |
| 100 US gallons | 1,892.71 Cup (Japanese) |
About the Cup (Japanese)
Japanese cup = 200ml. Used in rice cookers.
- Symbol
- cup JP
- Value in SI
- 1 Cup (Japanese) = 0.2 litre
- Typical use
- cooking
- Source
- UnitConvertLab measurement atlas
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 cooking measures 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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.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 Cup (Japanese) are in a US gallon?
1 US gallon = 18.9271 Cup (Japanese). Multiply the number of US gallons by 18.927059 to get Cup (Japanese).
What is Cup (Japanese) used for?
Japanese cup = 200ml. Used in rice cookers. It is classified as active and dates from the modern period.
Is the Cup (Japanese) value exact?
Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI litre, so the arithmetic itself introduces no rounding beyond the digits shown.
How reliable is this Cup (Japanese) 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 US gallons to Cup (Japanese). UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/us-gallon-to-cup-japan
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