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Convert US Gallons per Minute to US Gallons per Hour

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Engineering

Flow Rate Converter
10 sig. figures
Formula1 US gpm × 60 = 60 US gph

About Flow Rate Conversions

Volumetric flow rate measures how much fluid volume passes a point per unit of time. The SI unit is the cubic metre per second (m³/s), but practitioners almost never work at that scale — plumbing uses litres per minute, irrigation uses litres per second or cubic metres per hour, and HVAC balances run on cubic feet per minute (CFM). A key trap in international work is the gallon: the US gallon equals 3.785411784 L while the UK (imperial) gallon equals 4.54609 L, so 1 UK gpm is about 1.201 US gpm. Mixing them silently distorts pump and piping specifications by roughly 20%. A modern efficient shower head flows around 9.5 L/min (2.5 US gpm), while a garden hose at full open delivers 40 to 60 L/min. HVAC engineers translate refrigeration tonnage to airflow: rooftop units often spec 400 CFM per ton. Our converter uses exact SI-to-imperial relationships so that pump head, pipe sizing, and cooling tower duty calculations remain consistent across regions.

Quick Conversions

US Gallons per MinuteUS Gallons per Hour
1 US gpm60 US gph
2 US gpm120 US gph
5 US gpm300 US gph
10 US gpm600 US gph
25 US gpm1500 US gph
50 US gpm3000 US gph
100 US gpm6000 US gph
250 US gpm15000 US gph
500 US gpm30000 US gph
1000 US gpm60000 US gph
Unit NameSymbolPer 1 US Gallon per Minute
Cubic Foot per MinuteCFM0.133681
Cubic Foot per SecondCFS0.00222801
Cubic Meter per Hourm³/h0.227125
Cubic Meter per Minutem³/min0.00378541
Cubic Meter per Secondm³/s0.0000630902
Liter per HourL/h227.125
Liter per MinuteL/min3.78541
Liter per SecondL/s0.0630902
Milliliter per SecondmL/s63.0902
UK Gallon per MinuteUK gpm0.832674
US Gallon per HourUS gph60
US Gallon per MinuteUS gpm1

Frequently Asked Questions

How do I convert US Gallons per Minute to US Gallons per Hour?

To convert US Gallons per Minute to US Gallons per Hour, use the conversion where 1 US Gallon per Minute (US gpm) = 60 US Gallons per Hour (US gph). For example, 1 US Gallon per Minute = 60 US Gallons per Hour.

What are common US Gallon per Minute to US Gallon per Hour conversions?

Here are common conversions: 1 US Gallons per Minute = 60 US Gallons per Hour, 5 US Gallons per Minute = 300 US Gallons per Hour, 10 US Gallons per Minute = 600 US Gallons per Hour, 25 US Gallons per Minute = 1500 US Gallons per Hour, 50 US Gallons per Minute = 3000 US Gallons per Hour, 100 US Gallons per Minute = 6000 US Gallons per Hour.

When would I need to convert US Gallons per Minute to US Gallons per Hour?

Converting between these units is common in international trade, scientific research, and everyday situations where different measurement systems are used.

How precise are the conversions?

All conversions use exact factors verified against NIST and ISO standards with up to 10 significant figures of precision. Results are calculated using IEEE 754 double-precision arithmetic, which provides approximately 15-17 significant digits. For temperature and other non-linear conversions, exact formulas are used rather than approximations.