Convert Gallon (US) to US cups
Western Europe · UK vs US Volume · active · modern
Conventional value The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact.
1 Gallon (US) = 16 US cups
US cups = Gallon (US) × 15.999992
Convert any amount
Gallon (US) to US cups table
| Gallon (US) | US cups |
|---|---|
| 0.25 Gallon (US) | 4 US cups |
| 0.5 Gallon (US) | 8 US cups |
| 1 Gallon (US) | 16 US cups |
| 2 Gallon (US) | 32 US cups |
| 3 Gallon (US) | 48 US cups |
| 4 Gallon (US) | 64 US cups |
| 5 Gallon (US) | 80 US cups |
| 10 Gallon (US) | 160 US cups |
| 20 Gallon (US) | 320 US cups |
| 25 Gallon (US) | 400 US cups |
| 50 Gallon (US) | 800 US cups |
| 100 Gallon (US) | 1,600 US cups |
About the Gallon (US)
US gallon = 3.785 liters.
- Symbol
- gal US
- Value in SI
- 1 Gallon (US) = 3.78541 litre
- Typical use
- general
- 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 uk vs us volume units in the Western Europe 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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.
- Gill (UK) to US cupsHistorically reconstructed
- Teaspoon (Metric) to US cupsConventional value
- Tablespoon (Metric) to US cupsConventional value
- Cup (UK/Imperial) to US cupsConventional value
- Cup (Metric) to US cupsConventional value
- Fluid Ounce (UK) to US cupsConventional value
- Gallon (UK) to US cupsConventional value
- Pint (UK) to US cupsConventional value
Related conversions
Frequently asked
How many US cups are in a Gallon (US)?
1 Gallon (US) = 16 US cups. Multiply the number of Gallon (US) by 15.999992 to get US cups.
What is Gallon (US) used for?
US gallon = 3.785 liters. It is classified as active and dates from the modern period.
Is the Gallon (US) 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 Gallon (US) 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 Gallon (US) to US cups. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/gallon-us-to-us-cup
Report an incorrect value or source
Regional units vary by district and by century. If this figure, its variant list or its citation is wrong where you are, tell us — the report carries the page context automatically.