Convert US gallons per hour to Cubic metres per day

Convert US gallons per hour (gph) to Cubic metres per day (m³/d) instantly and accurately.

US gallons per hour (gph)
Cubic metres per day (m³/d)

Conversion Formula

m³/d = gph × 0.09084988282

About US gallons per hour

The US gallon per hour (gph) equals 3.785411784×10⁻³/3600 ≈ 1.051×10⁻⁶ m³/s, common in oil-burner nozzle ratings, water-softener regeneration, and RV/marine-plumbing specifications. Residential oil-burner nozzles are rated in gph (e.g., 0.75 gph, 1.00 gph); a small boat bilge pump might handle 200-500 gph. 1 US gph ≈ 1.052×10⁻⁶ m³/s ≈ 3.785 L/h.

About Cubic metres per day

The cubic metre per day (m³/d) equals 1/86400 ≈ 1.157×10⁻⁵ m³/s, standard in water-resource management, desalination-plant capacity, and per-capita water-consumption accounting. A municipal desalination plant may produce 100 000-1 000 000 m³/d; the WHO minimum water supply requirement is 0.05 m³/d per person. 1 m³/d ≈ 1.157×10⁻⁵ m³/s = 264.2 US gal/d.

Quick Reference Table

US gallons per hour (gph)Cubic metres per day (m³/d)
1 gph0.0908499 m³/d
2 gph0.1817 m³/d
5 gph0.454249 m³/d
10 gph0.908499 m³/d
25 gph2.27125 m³/d
50 gph4.54249 m³/d
100 gph9.08499 m³/d

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