40 cup ≈ 2.5 gal (Imperial; in US gallons: 40 cup = 3.0024 US gal). To convert cups to gallons, multiply by 0.062499995: 40 × 0.062499995 = 2.5.
How to convert cups to gallons
gal = cup × 0.062499995
- 1 cup = 0.062499995 gal (and 1 gal = 16.000001 cup).
- Multiply the amount by the factor: 40 × 0.062499995 = 2.5.
- Answer: 40 cup ≈ 2.5 gal (rounded to 6 significant figures).
Cups to Gallons table
| Cups (cup) | Gallons (gal) |
|---|---|
| 35 cup | 2.1875 gal |
| 36 cup | 2.25 gal |
| 37 cup | 2.3125 gal |
| 38 cup | 2.375 gal |
| 39 cup | 2.4375 gal |
| 40 cup | 2.5 gal |
| 41 cup | 2.5625 gal |
| 42 cup | 2.625 gal |
| 43 cup | 2.6875 gal |
| 44 cup | 2.75 gal |
| 45 cup | 2.8125 gal |
| cup | gal |
|---|---|
| 1 cup | 0.0625 gal |
| 5 cup | 0.3125 gal |
| 10 cup | 0.625 gal |
| 50 cup | 3.125 gal |
| 100 cup | 6.25 gal |
| 1,000 cup | 62.5 gal |
Good to know
The cup here is the Imperial (UK) cup: 1 cup = 0.28413 L. A US cup is 0.236588 L.
In US cups: 40 US cup = 2.0817 gal.
The gal here is the Imperial (UK) gallon: 1 gal = 4.54609 L. A US gallon is 3.78541 L.
In US gallons: 40 cup = 3.0024 US gal.