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GPM to LPM Conversion Formula:
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GPM to LPM conversion is the process of converting flow rate measurements from gallons per minute to liters per minute. This conversion is essential in various fields including engineering, plumbing, irrigation, and fluid dynamics where different measurement systems are used.
The conversion uses the standard formula:
Where:
Explanation: Since 1 US gallon equals exactly 3.785411784 liters, multiplying GPM by this factor gives the equivalent flow rate in liters per minute.
Details: Accurate flow rate conversion is crucial for international projects, equipment specifications, hydraulic calculations, and ensuring compatibility between systems using different measurement units.
Tips: Enter the flow rate in gallons per minute (GPM). The value must be positive. The converter will automatically calculate the equivalent flow rate in liters per minute (LPM).
Q1: What is the difference between US gallons and imperial gallons?
A: US gallons (3.785 liters) are different from imperial gallons (4.546 liters). This converter uses US gallons. For imperial gallons, use conversion factor 4.54609.
Q2: How accurate is the conversion?
A: The conversion is mathematically exact since 1 US gallon is defined as exactly 3.785411784 liters.
Q3: When is this conversion commonly used?
A: Commonly used in water treatment plants, irrigation systems, pump specifications, hydraulic engineering, and international equipment documentation.
Q4: Can I convert LPM back to GPM?
A: Yes, use the inverse formula: \( GPM = LPM \div 3.785411784 \) or \( GPM = LPM \times 0.264172 \).
Q5: What are typical flow rates in GPM and LPM?
A: Residential faucets: 1-2 GPM (3.8-7.6 LPM), shower heads: 2.5 GPM (9.5 LPM), garden hoses: 5-10 GPM (19-38 LPM).