Convert Acre-feet per day to Acre-feet per second
Convert Acre-feet per day (ac-ft/d) to Acre-feet per second (ac-ft/s) instantly and accurately.
Conversion Formula
ac-ft/s = ac-ft/d × 1.157407407e-5
About Acre-feet per day
The acre-foot per day (ac-ft/d) equals 1233.48183754752/86400 ≈ 0.014278 m³/s, the practical unit for daily water-delivery scheduling in western US irrigation districts and river-compact administration. Water rights in the Colorado River system are specified in acre-feet per year; daily delivery schedules convert to ac-ft/d. A moderate-size irrigation lateral delivers 5-50 ac-ft/d. 1 ac-ft/d ≈ 0.014278 m³/s ≈ 504.2 US gal/min.
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.
Quick Reference Table
| Acre-feet per day (ac-ft/d) | Acre-feet per second (ac-ft/s) |
|---|---|
| 1 ac-ft/d | 1.157 × 10-5 ac-ft/s |
| 2 ac-ft/d | 2.315 × 10-5 ac-ft/s |
| 5 ac-ft/d | 5.787 × 10-5 ac-ft/s |
| 10 ac-ft/d | 0.000115741 ac-ft/s |
| 25 ac-ft/d | 0.000289352 ac-ft/s |
| 50 ac-ft/d | 0.000578704 ac-ft/s |
| 100 ac-ft/d | 0.00115741 ac-ft/s |