Volumetric flow rate.
Gallon per Seconds to Cups per Fortnight Converter — gal/s to cup/fn
Convert Gallon per Seconds (gal/s) to Cup per Fortnight (cup/fn) using the exact conversion factor (1 gallon per seconds = 19,353,600 cup per fortnight). See the formula, worked examples, and conversion table.
Gallon per Seconds to Cups 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 0.003785411784 / 1.95592127e-10.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallon per Seconds to Cups per Fortnight
Gallon per Seconds and Cup 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. Both are volumetric flow rate units.
Formula
cups per fortnight = gallon per seconds × 19353600
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per seconds equals 0.003785411784 base units, and 1 cup per fortnight equals 1.955921e-10 base units, so dividing one by the other gives the direct gallon per seconds-to-cup per fortnight factor of 19353600.
Simple example
1 gal/s × 19353600 = 19,353,600 cup/fn
1 gallon per seconds = 19,353,600 cups per fortnight.
Real-world example
60 gal/s × 19353600 = 1,161,216,000 cup/fn
60 gallon per seconds = 1,161,216,000 cups per fortnight.
Conversion table
| Gallon per Seconds (gal/s) | Cup per Fortnight (cup/fn) |
|---|---|
| 0.1 gal/s | 1,935,360 cup/fn |
| 1 gal/s | 19,353,600 cup/fn |
| 10 gal/s | 193,536,000 cup/fn |
| 60 gal/s | 1,161,216,000 cup/fn |
| 100 gal/s | 1,935,360,000 cup/fn |
| 1,000 gal/s | 19,353,600,000 cup/fn |
Reverse conversion: Cup per Fortnight to Gallon per Seconds
1 cup/fn × 5.166997e-8 = 5.166997e-8 gal/s
1 cup per fortnight = 5.166997e-8 gallon per seconds.
gallon per seconds = cups per fortnight × 5.166997e-8
For a page dedicated to this direction, see Cup per Fortnight to Gallon per Seconds.
Understanding the Gallon per Seconds (gal/s)
Volumetric flow rate.
Understanding the Cup per Fortnight (cup/fn)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cups per fortnight are in 1 gallon per seconds?
1 gallon per seconds equals 19,353,600 cups per fortnight, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per seconds to cup per fortnight?
Multiply the gallon per seconds value by 19353600. The converter above does this instantly to whatever precision you set.
How do I convert cup per fortnight back to gallon per seconds?
Use the reverse factor: 1 cup per fortnight equals 5.166997e-8 gallon per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per seconds?
Gallon per Seconds (gal/s) is a unit of flow rate.
What is a cup per fortnight?
Cup per Fortnight (cup/fn) is a unit of flow rate.
Is the gallon per seconds to cup per fortnight conversion exact?
Yes. Both gallon per seconds and cup per fortnight are defined by fixed standards rather than physical artifacts, so the factor of 19353600 used above is exact to as many digits as you choose to display.
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.