Volumetric flow rate.
Cubic inch per Seconds to Gallons per Fortnight Converter — in3/s to gal/fn
Convert Cubic inch per Seconds (in3/s) to Gallon per Fortnight (gal/fn) using the exact conversion factor (1 cubic inch per seconds = 5,236.363636 gallon per fortnight). See the formula, worked examples, and conversion table.
Cubic inch per Seconds 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 1.6387064e-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 Cubic inch per Seconds to Gallons per Fortnight
Cubic inch per Seconds 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. Both are volumetric flow rate units.
Formula
gallons per fortnight = cubic inch per seconds × 5236.36363636
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic inch per seconds equals 0.000016387064 base units, and 1 gallon per fortnight equals 3.129474e-9 base units, so dividing one by the other gives the direct cubic inch per seconds-to-gallon per fortnight factor of 5236.36363636.
Simple example
1 in3/s × 5236.363636 = 5,236.363636 gal/fn
1 cubic inch per seconds = 5,236.363636 gallons per fortnight.
Real-world example
60 in3/s × 5236.363636 = 314,181.8182 gal/fn
60 cubic inch per seconds = 314,181.8182 gallons per fortnight.
Conversion table
| Cubic inch per Seconds (in3/s) | Gallon per Fortnight (gal/fn) |
|---|---|
| 0.1 in3/s | 523.6363636 gal/fn |
| 1 in3/s | 5,236.363636 gal/fn |
| 10 in3/s | 52,363.63636 gal/fn |
| 60 in3/s | 314,181.8182 gal/fn |
| 100 in3/s | 523,636.3636 gal/fn |
| 1,000 in3/s | 5,236,363.636 gal/fn |
Reverse conversion: Gallon per Fortnight to Cubic inch per Seconds
1 gal/fn × 0.0001909722222 = 0.0001909722 in3/s
1 gallon per fortnight = 0.0001909722 cubic inch per seconds.
cubic inch per seconds = gallons per fortnight × 0.000190972222222
For a page dedicated to this direction, see Gallon per Fortnight to Cubic inch per Seconds.
Understanding the Cubic inch per Seconds (in3/s)
Volumetric flow rate.
Understanding the Gallon per Fortnight (gal/fn)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallons per fortnight are in 1 cubic inch per seconds?
1 cubic inch per seconds equals 5,236.363636 gallons per fortnight, using the exact defined conversion factor rather than an estimate.
How do I convert cubic inch per seconds to gallon per fortnight?
Multiply the cubic inch per seconds value by 5236.363636. The converter above does this instantly to whatever precision you set.
How do I convert gallon per fortnight back to cubic inch per seconds?
Use the reverse factor: 1 gallon per fortnight equals 0.0001909722 cubic inch per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic inch per seconds?
Cubic inch per Seconds (in3/s) is a unit of flow rate.
What is a gallon per fortnight?
Gallon per Fortnight (gal/fn) is a unit of flow rate.
Is the cubic inch per seconds to gallon per fortnight conversion exact?
Yes. Both cubic inch per seconds and gallon per fortnight are defined by fixed standards rather than physical artifacts, so the factor of 5236.363636 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.