Convert Acre-feet per second to Cubic feet per day
Convert Acre-feet per second (ac-ft/s) to Cubic feet per day (ft³/d) instantly and accurately.
Conversion Formula
ft³/d = ac-ft/s × 3763584000
About Acre-feet per second
The acre-foot per second (ac-ft/s) equals 1233.48183754752 m³/s, an enormous unit representing the flow that would fill a football-field-sized area to 1 ft depth every second. It appears in descriptions of exceptionally large dam-break flood waves and major river-system extreme events. The 1976 Teton Dam collapse peak outflow was estimated at ≈65 000 ft³/s ≈ 1.49 ac-ft/s. 1 ac-ft/s = 1 233.48 m³/s.
About Cubic feet per day
The cubic foot per day (ft³/d) equals 0.028316846592/86400 ≈ 3.277×10⁻⁷ m³/s, found in US oil-and-gas production reports for low-rate gas wells and groundwater monitoring wells. A marginal coalbed-methane well producing 50 Mcf/d (50 000 ft³/d) of gas represents a modest but economic flow; residential water-well yield tests report in ft³/d. 1 ft³/d ≈ 3.277×10⁻⁷ m³/s.
Quick Reference Table
| Acre-feet per second (ac-ft/s) | Cubic feet per day (ft³/d) |
|---|---|
| 1 ac-ft/s | 3.764 × 109 ft³/d |
| 2 ac-ft/s | 7.527 × 109 ft³/d |
| 5 ac-ft/s | 1.882 × 1010 ft³/d |
| 10 ac-ft/s | 3.764 × 1010 ft³/d |
| 25 ac-ft/s | 9.409 × 1010 ft³/d |
| 50 ac-ft/s | 1.882 × 1011 ft³/d |
| 100 ac-ft/s | 3.764 × 1011 ft³/d |