Convert Cup (Japanese) to US gallons
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 Cup (Japanese) = 0.0528344 US gallons
US gallons = Cup (Japanese) × 0.05283441
Convert any amount
Cup (Japanese) to US gallons table
| Cup (Japanese) | US gallons |
|---|---|
| 0.25 Cup (Japanese) | 0.0132086 US gallons |
| 0.5 Cup (Japanese) | 0.0264172 US gallons |
| 1 Cup (Japanese) | 0.0528344 US gallons |
| 2 Cup (Japanese) | 0.105669 US gallons |
| 3 Cup (Japanese) | 0.158503 US gallons |
| 4 Cup (Japanese) | 0.211338 US gallons |
| 5 Cup (Japanese) | 0.264172 US gallons |
| 10 Cup (Japanese) | 0.528344 US gallons |
| 20 Cup (Japanese) | 1.05669 US gallons |
| 25 Cup (Japanese) | 1.32086 US gallons |
| 50 Cup (Japanese) | 2.64172 US gallons |
| 100 Cup (Japanese) | 5.28344 US gallons |
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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.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 US gallons are in a Cup (Japanese)?
1 Cup (Japanese) = 0.0528344 US gallons. Multiply the number of Cup (Japanese) by 0.05283441 to get US gallons.
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 Cup (Japanese) to US gallons. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/cup-japan-to-us-gallon
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