To convert US cups to acre-feet, multiply the value by 1.91805 × 10⁻⁷. To go the other way, multiply acre-feet by 5,213,620 to get US cups.
| US Cups (cup) | Acre-Feet (ac·ft) |
|---|---|
| 1 cup | 1.91805 × 10⁻⁷ ac·ft |
| 2 cup | 3.8361 × 10⁻⁷ ac·ft |
| 5 cup | 9.59026 × 10⁻⁷ ac·ft |
| 10 cup | 1.91805 × 10⁻⁶ ac·ft |
| 20 cup | 3.8361 × 10⁻⁶ ac·ft |
| 50 cup | 9.59026 × 10⁻⁶ ac·ft |
| 100 cup | 1.91805 × 10⁻⁵ ac·ft |
| 500 cup | 9.59026 × 10⁻⁵ ac·ft |
| 1,000 cup | 0.000191805 ac·ft |
US cup (cup). A US customary cup is 8 fluid ounces (236.588 mL).
Acre-foot (ac·ft). An acre-foot is the volume of water covering an acre to a depth of one foot (1,233.5 m³), the US water-resources unit.
There are 1.91805 × 10⁻⁷ acre-feet in one US cup.
Multiply the number of US cups by 1.91805 × 10⁻⁷. For example, 10 US cups equal 1.91805 × 10⁻⁶ acre-feet.
One acre-foot equals 5,213,620 US cups.