Volumetric flow rate.
Gallon per Minutes to Gallons per Fortnight Converter — gal/min to gal/fn
Convert Gallon per Minutes (gal/min) to Gallon per Fortnight (gal/fn) using the exact conversion factor (1 gallon per minutes = 20,160 gallon per fortnight). See the formula, worked examples, conversion table, and common uses.
Gallon per Minutes to Gallons per Fortnight converter
Converter
Flow Rate Converter
Convert volumetric flow rates across metric, US, imperial, industrial, and scientific units.
Context values
Some unit families need one extra value for a physically accurate result.
Volumetric flow rate.
Result = input x 6.30901964e-5 / 3.12947403e-9.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallon per Minutes to Gallons per Fortnight
Gallon per Minutes and Gallon per Fortnight both measure volumetric flow rate — how much volume passes a point over time — used to size pipes and pumps, monitor river or stream discharge, control industrial processes, and set medical infusion rates. Gallon per Minutes is most often used for us residential and commercial plumbing fixture flow ratings.
Formula
gallons per fortnight = gallon per minutes × 20160
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per minutes equals 0.0000630901964 base units, and 1 gallon per fortnight equals 3.129474e-9 base units, so dividing one by the other gives the direct gallon per minutes-to-gallon per fortnight factor of 20160.
Simple example
1 gal/min × 20160 = 20,160 gal/fn
1 gallon per minutes = 20,160 gallons per fortnight.
Real-world example
60 gal/min × 20160 = 1,209,600 gal/fn
60 gallon per minutes = 1,209,600 gallons per fortnight.
Conversion table
| Gallon per Minutes (gal/min) | Gallon per Fortnight (gal/fn) |
|---|---|
| 0.1 gal/min | 2,016 gal/fn |
| 1 gal/min | 20,160 gal/fn |
| 10 gal/min | 201,600 gal/fn |
| 60 gal/min | 1,209,600 gal/fn |
| 100 gal/min | 2,016,000 gal/fn |
| 1,000 gal/min | 20,160,000 gal/fn |
Reverse conversion: Gallon per Fortnight to Gallon per Minutes
1 gal/fn × 0.0000496031746 = 0.0000496032 gal/min
1 gallon per fortnight = 0.0000496032 gallon per minutes.
gallon per minutes = gallons per fortnight × 0.0000496031746032
For a page dedicated to this direction, see Gallon per Fortnight to Gallon per Minutes.
Understanding the Gallon per Minutes
Gallon per Minutes (gal/min) measures volumetric flow rate. The standard US unit for pump, plumbing, and irrigation flow-rate specifications. It is classified as a US customary flow-rate unit.
Where it's used: United States (plumbing, pump, and irrigation industry standard)
Uses of the Gallon per Minutes today
- US residential and commercial plumbing fixture flow ratings
- US pump and irrigation system specifications
- US pool and spa filtration system sizing
Understanding the Gallon per Fortnight (gal/fn)
Volumetric flow rate.
Gallon per Minutes — sources
- NIST Handbook 44 — General tables of units including US customary flow-rate measures.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallons per fortnight are in 1 gallon per minutes?
1 gallon per minutes equals 20,160 gallons per fortnight, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per minutes to gallon per fortnight?
Multiply the gallon per minutes value by 20160. The converter above does this instantly to whatever precision you set.
How do I convert gallon per fortnight back to gallon per minutes?
Use the reverse factor: 1 gallon per fortnight equals 0.0000496032 gallon per minutes. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per minutes?
Gallon per Minutes (gal/min) measures volumetric flow rate. The standard US unit for pump, plumbing, and irrigation flow-rate specifications. It is classified as a US customary flow-rate unit.
What is a gallon per fortnight?
Gallon per Fortnight (gal/fn) is a unit of flow rate.
Is the gallon per minutes to gallon per fortnight conversion exact?
Yes. Both gallon per minutes and gallon per fortnight are defined by fixed standards rather than physical artifacts, so the factor of 20160 used above is exact to as many digits as you choose to display.
Where is the gallon per minutes still used today?
United States (plumbing, pump, and irrigation industry standard)
What's the difference between volumetric and mass flow rate?
Volumetric flow rate measures the volume of fluid passing a point per unit time (for example, liters per second). Mass flow rate measures the mass instead. For a fluid of constant density the two are directly proportional, but for compressible fluids like gases, mass flow is often the more meaningful quantity.