Convert Cubic metres per hour to Acre-feet per second
Convert Cubic metres per hour (m³/h) to Acre-feet per second (ac-ft/s) instantly and accurately.
Conversion Formula
ac-ft/s = m³/h × 2.251981094e-7
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.
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
| Cubic metres per hour (m³/h) | Acre-feet per second (ac-ft/s) |
|---|---|
| 1 m³/h | 2.252 × 10-7 ac-ft/s |
| 2 m³/h | 4.504 × 10-7 ac-ft/s |
| 5 m³/h | 1.126 × 10-6 ac-ft/s |
| 10 m³/h | 2.252 × 10-6 ac-ft/s |
| 25 m³/h | 5.63 × 10-6 ac-ft/s |
| 50 m³/h | 1.126 × 10-5 ac-ft/s |
| 100 m³/h | 2.252 × 10-5 ac-ft/s |