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Gallons Per Minute Converter Calculator

Work out gallons per minute converter instantly with clear inputs, formula shown and shareable results.

About Gallons Per Minute Converter Calculator

Each flow rate unit is defined as a multiple of the cubic metre per second, so the conversion runs in two steps: multiply by the source unit's factor to reach cubic metre per second, then divide by the target unit's factor. One factor per unit covers every pair in the list. This uses the US liquid gallon. UK pump data quoted in gallons will be about 20% higher per gallon.

Formulas

Two-step conversion

result = value × factor(from) ÷ factor(to)

Base value

base (cubic metre per second) = value × factor(from)

Worked example

With the default values below, Gallons Per Minute Converter Calculator returns Converted Value of 3.78541178. Change any input above and every figure here is recalculated in your browser.

Inputs used

Value
1
From unitone of Cubic metre per second (m³/s), Cubic metre per hour (m³/h), Litre per second (L/s), Litre per minute (L/min), US gallon per minute (GPM), US gallon per hour (GPH), Cubic foot per minute (CFM)
US gallon per minute (GPM)
To unitone of Cubic metre per second (m³/s), Cubic metre per hour (m³/h), Litre per second (L/s), Litre per minute (L/min), US gallon per minute (GPM), US gallon per hour (GPH), Cubic foot per minute (CFM)
Litre per minute (L/min)

Results

Converted Value
3.78541178
Result Unit
Litre per minute (L/min)
Value in cubic metre per second (base)
0.00006309
Multiplier Applied
3.78541178

Step by step

  1. 1Values used
  2. 2Two-step conversion
  3. 3Base value
  4. 4Converted Value= 3.78541178
  5. 5Result Unit= Litre per minute (L/min)
  6. 6Value in cubic metre per second (base)= 0.00006309
  7. 7Multiplier Applied= 3.78541178

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 8 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why route through cubic metre per second?

With 7 units, direct pairs would mean 42 factors to maintain. Going via cubic metre per second needs one factor per unit and gives the same answer.

Does the dropdown order matter?

Yes. The first is the unit your figure is already in; the second is what you want it in. Swapping them inverts the result.

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