Convert Acre-feet per day to Cubic metres per hour
Convert Acre-feet per day (ac-ft/d) to Cubic metres per hour (m³/h) instantly and accurately.
Conversion Formula
m³/h = ac-ft/d × 51.39507656
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 Cubic metres per hour
The cubic metre per hour (m³/h) equals 1/3600 m³/s ≈ 2.778×10⁻⁴ m³/s, the dominant volumetric flow unit in European process engineering, HVAC, and water treatment. Pump datasheet curves, heat-exchanger sizing software, and wastewater-treatment design all use m³/h as the standard. A domestic water pump runs at 3-8 m³/h; a municipal WWTP inlet pump handles 500-5 000 m³/h. 1 m³/h ≈ 2.778×10⁻⁴ m³/s = 1 000 L/h.
Quick Reference Table
| Acre-feet per day (ac-ft/d) | Cubic metres per hour (m³/h) |
|---|---|
| 1 ac-ft/d | 51.3951 m³/h |
| 2 ac-ft/d | 102.79 m³/h |
| 5 ac-ft/d | 256.975 m³/h |
| 10 ac-ft/d | 513.951 m³/h |
| 25 ac-ft/d | 1284.88 m³/h |
| 50 ac-ft/d | 2569.75 m³/h |
| 100 ac-ft/d | 5139.51 m³/h |