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GPM = LPH / 227.12470704
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The conversion between gallons per minute (GPM) and liters per hour (LPH) is essential for fluid flow rate calculations in various engineering and industrial applications. This conversion allows seamless transition between imperial and metric flow rate units.
The calculator uses the conversion formula:
Where:
Explanation: The conversion factor is derived from the relationship between gallons and liters (1 gallon = 3.78541 liters) and the time conversion between hours and minutes (1 hour = 60 minutes).
Details: Accurate flow rate conversion is crucial for hydraulic system design, pump selection, irrigation planning, and industrial process control where different measurement systems are used.
Tips: Enter the flow rate in liters per hour (LPH). The value must be positive. The calculator will automatically convert it to gallons per minute (GPM) with high precision.
Q1: Why is the conversion factor 227.12470704?
A: This factor comes from: 1 GPM = 3.78541 LPM × 60 minutes = 227.1246 LPH, so the inverse gives LPH to GPM conversion.
Q2: What are typical LPH values in practical applications?
A: Residential water systems: 1,000-5,000 LPH; industrial pumps: 10,000-100,000 LPH; automotive fuel systems: 50-200 LPH.
Q3: How accurate is this conversion?
A: The conversion is mathematically exact based on standard gallon and liter definitions. Precision depends on input measurement accuracy.
Q4: Can this conversion be used for all fluids?
A: Yes, the conversion is volumetric and applies to all liquids. For mass flow rates, fluid density must be considered separately.
Q5: What's the difference between US gallon and imperial gallon?
A: This calculator uses US gallons (3.78541 liters). Imperial gallons are larger (4.54609 liters) and would require a different conversion factor.