Convert Imperial gallons to US cups
1 imp gal = 19.215199 cup. Change the amount below, or read the formula and the reference table further down.
1 Imperial gallon equals
US cups
1 imp gal = 19.215199 cup
The formula
Imperial gallons and US cups both measure volume from the same zero, so a single multiplier does the job.
cup = imp gal × 19.21519881
Going the other way? Convert US cups to Imperial gallons.
Imperial gallons to US cups table
Common values, rounded for reading.
| Imperial gallons (imp gal) | US cups (cup) |
|---|---|
| 1 | 19.2152 |
| 2 | 38.4304 |
| 3 | 57.6456 |
| 4 | 76.8608 |
| 5 | 96.076 |
| 6 | 115.29 |
| 7 | 134.51 |
| 8 | 153.72 |
| 9 | 172.94 |
| 10 | 192.15 |
| 15 | 288.23 |
| 20 | 384.3 |
| 25 | 480.38 |
| 30 | 576.46 |
| 40 | 768.61 |
| 50 | 960.76 |
| 75 | 1,441.14 |
| 100 | 1,921.52 |
| 250 | 4,803.8 |
| 500 | 9,607.6 |
| 1,000 | 19,215.2 |
Questions people ask
- How many US cups are in a Imperial gallon?
- One Imperial gallon equals 19.21519881 US cups.
- How do I convert Imperial gallons to US cups by hand?
- Multiply the number of Imperial gallons by 19.21519881. For a rough check, 19.2 is close enough for most everyday use.
- What is 1 Imperial gallon in US cups?
- 1 Imperial gallon is 19.215199 US cups.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.