Formula
US gal to US cup conversion formula
Use this relationship for a direct conversion:
US cup = US gal x 16
Worked example
2 US gal = 32 US cup.
US liquid and Imperial gallon definitions are treated separately and use their exact legal values.
Volume conversion
Convert US gallon to US customary cup
1 us gallon (US gal) equals 16 us customary cup (US cup). Enter any value below to convert from US gal to US cup.
Enter a value and choose units. Results update instantly.
1 US gal = 16 US cup
All Volume units
From 1 US gal| Unit | Value |
|---|---|
| Cubic meter m³ | 0.0037854118 |
| Liter L | 3.785411784 |
| Milliliter mL | 3,785.411784 |
| Cubic centimeter cm³ | 3,785.411784 |
| Cubic inch in³ | 231 |
| Cubic foot ft³ | 0.1336805556 |
| US gallon US gal | 1 |
| Imperial gallon imp gal | 0.8326741846 |
| US quart US qt | 4 |
| US customary cup US cup | 16 |
| US fluid ounce US fl oz | 128 |
Recent conversions
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Quick reference
US gallon to US customary cup table
| US gallon (US gal) | US customary cup (US cup) |
|---|---|
| 0.01 | 0.16 |
| 0.1 | 1.6 |
| 1 | 16 |
| 2 | 32 |
| 5 | 80 |
| 10 | 160 |
| 25 | 400 |
| 50 | 800 |
| 100 | 1,600 |
| 1,000 | 16,000 |
From unit
About the us gallon
Exactly 231 cubic inches.
Symbol: US gal
To unit
About the us customary cup
Eight US fluid ounces, about 236.588 milliliters.
Symbol: US cup
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Source
Conversion standard
Definitions are checked against NIST Handbook 44, Appendix C. Calculations use full internal precision before display rounding.
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US gal to US cup FAQ
How do you convert us gallon to us customary cup?
Use the formula US cup = US gal x 16. 1 us gallon (US gal) equals 16 us customary cup (US cup).
Is the US gal to US cup conversion exact?
Both unit definitions use exact factors. Only the displayed decimal may be rounded.