Volumetric flow rate.
Gallons per Fortnight to Cubic inch per Days Converter — gal/fn to in3/d
Convert Gallon per Fortnight (gal/fn) to Cubic inch per Days (in3/d) using the exact conversion factor (1 gallon per fortnight = 16.5 cubic inch per days). See the formula, worked examples, and conversion table.
Gallons per Fortnight to Cubic inch per Days 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 3.12947403e-9 / 1.89665093e-10.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallons per Fortnight to Cubic inch per Days
Gallon per Fortnight and Cubic inch per Days 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
cubic inch per days = gallons per fortnight × 16.5
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per fortnight equals 3.129474e-9 base units, and 1 cubic inch per days equals 1.896651e-10 base units, so dividing one by the other gives the direct gallon per fortnight-to-cubic inch per days factor of 16.5.
Simple example
1 gal/fn × 16.5 = 16.5 in3/d
1 gallon per fortnight = 16.5 cubic inch per days.
Real-world example
60 gal/fn × 16.5 = 990 in3/d
60 gallons per fortnight = 990 cubic inch per days.
Conversion table
| Gallon per Fortnight (gal/fn) | Cubic inch per Days (in3/d) |
|---|---|
| 0.1 gal/fn | 1.65 in3/d |
| 1 gal/fn | 16.5 in3/d |
| 10 gal/fn | 165 in3/d |
| 60 gal/fn | 990 in3/d |
| 100 gal/fn | 1,650 in3/d |
| 1,000 gal/fn | 16,500 in3/d |
Reverse conversion: Cubic inch per Days to Gallon per Fortnight
16.5 in3/d × 0.06060606061 = 1 gal/fn
16.5 cubic inch per days = 1 gallon per fortnight.
gallons per fortnight = cubic inch per days × 0.0606060606061
For a page dedicated to this direction, see Cubic inch per Days to Gallon per Fortnight.
Understanding the Gallon per Fortnight (gal/fn)
Volumetric flow rate.
Understanding the Cubic inch per Days (in3/d)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic inch per days are in 1 gallon per fortnight?
1 gallon per fortnight equals 16.5 cubic inch per days, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per fortnight to cubic inch per days?
Multiply the gallon per fortnight value by 16.5. The converter above does this instantly to whatever precision you set.
How do I convert cubic inch per days back to gallon per fortnight?
Use the reverse factor: 1 cubic inch per days equals 0.0606060606 gallons per fortnight. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per fortnight?
Gallon per Fortnight (gal/fn) is a unit of flow rate.
What is a cubic inch per days?
Cubic inch per Days (in3/d) is a unit of flow rate.
Is the gallon per fortnight to cubic inch per days conversion exact?
Yes. Both gallon per fortnight and cubic inch per days are defined by fixed standards rather than physical artifacts, so the factor of 16.5 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.