Convert UK gallons per minute to US fluid ounces per minute

Convert UK gallons per minute (gpm) to US fluid ounces per minute (fl oz/min) instantly and accurately.

UK gallons per minute (gpm)
US fluid ounces per minute (fl oz/min)

Conversion Formula

fl oz/min = gpm × 153.7215905

About UK gallons per minute

The UK (imperial) gallon per minute (gpm) equals 4.54609×10⁻³/60 ≈ 7.577×10⁻⁵ m³/s, historically used in British plumbing design, pump curves, and water-treatment plant sizing. Pre-metric UK water-industry capacity tables and pump manufacturers quoted flows in UK gal/min; legacy British Standard BS EN pump curves often show both units. 1 UK gpm ≈ 7.577×10⁻⁵ m³/s ≈ 4.546 L/min.

About US fluid ounces per minute

The US fluid ounce per minute (fl oz/min) equals 3.785411784×10⁻³/128/60 ≈ 4.929×10⁻⁷ m³/s. It is found in US consumer-product flow specifications such as showerhead flow ratings, beverage dispenser settings, and fuel-injector bench tests in US automotive workshops. A showerhead rated at 48 fl oz/min delivers exactly 1.5 US gal/min. 1 fl oz/min ≈ 4.929×10⁻⁷ m³/s.

Quick Reference Table

UK gallons per minute (gpm)US fluid ounces per minute (fl oz/min)
1 gpm153.722 fl oz/min
2 gpm307.443 fl oz/min
5 gpm768.608 fl oz/min
10 gpm1537.22 fl oz/min
25 gpm3843.04 fl oz/min
50 gpm7686.08 fl oz/min
100 gpm15372.2 fl oz/min

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