Convert Acre-Feet to Cups
Convert Acre-Feet (ac ft) to Cups (cup) instantly and accurately.
Conversion Formula
cup = ac ft × 5213622.857
About Acre-Feet
An acre-foot (ac ft) = the volume covering 1 acre to 1 ft depth ≈ 1,233.5 m³ (325,851 US gal). Almost exclusively used in US water resource management. California's Lake Shasta: 4.55 million ac ft at capacity. A typical US household uses ~0.5-1 ac ft/year. Water rights on the Colorado and Sacramento rivers are traded in acre-feet. 1 ac ft ≈ 1,233.5 m³.
About Cups
A cup = 8 fl oz = 16 tbsp ≈ 236.6 mL - the fundamental unit of American cooking. Almost every US recipe uses cups for dry and liquid ingredients. The US customary cup (236.588 mL) differs from the US legal cup (240 mL, used in nutrition labelling) and the metric cup (Australia/Canada: 250 mL). Kitchen sets come in 1/4, 1/3, 1/2, and 1 cup sizes. 2 cups = 1 US pint.
Quick Reference Table
| Acre-Feet (ac ft) | Cups (cup) |
|---|---|
| 1 ac ft | 5213620 cup |
| 2 ac ft | 10427200 cup |
| 5 ac ft | 26068100 cup |
| 10 ac ft | 52136200 cup |
| 25 ac ft | 130341000 cup |
| 50 ac ft | 260681000 cup |
| 100 ac ft | 521362000 cup |