Volumetric flow rate.
Cubic inch per Seconds to Cubic feet per Fortnight Converter — in3/s to ft3/fn
Convert Cubic inch per Seconds (in3/s) to Cubic foot per Fortnight (ft3/fn) using the exact conversion factor (1 cubic inch per seconds = 700 cubic foot per fortnight). See the formula, worked examples, and conversion table.
Cubic inch per Seconds to Cubic feet 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 / 2.34100914e-8.
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 Cubic feet per Fortnight
Cubic inch per Seconds and Cubic foot 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
cubic feet per fortnight = cubic inch per seconds × 700
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 cubic foot per fortnight equals 2.341009e-8 base units, so dividing one by the other gives the direct cubic inch per seconds-to-cubic foot per fortnight factor of 700.
Simple example
1 in3/s × 700 = 700 ft3/fn
1 cubic inch per seconds = 700 cubic feet per fortnight.
Real-world example
60 in3/s × 700 = 42,000 ft3/fn
60 cubic inch per seconds = 42,000 cubic feet per fortnight.
Conversion table
| Cubic inch per Seconds (in3/s) | Cubic foot per Fortnight (ft3/fn) |
|---|---|
| 0.1 in3/s | 70 ft3/fn |
| 1 in3/s | 700 ft3/fn |
| 10 in3/s | 7,000 ft3/fn |
| 60 in3/s | 42,000 ft3/fn |
| 100 in3/s | 70,000 ft3/fn |
| 1,000 in3/s | 700,000 ft3/fn |
Reverse conversion: Cubic foot per Fortnight to Cubic inch per Seconds
700 ft3/fn × 0.001428571429 = 1 in3/s
700 cubic feet per fortnight = 1 cubic inch per seconds.
cubic inch per seconds = cubic feet per fortnight × 0.00142857142857
For a page dedicated to this direction, see Cubic foot per Fortnight to Cubic inch per Seconds.
Understanding the Cubic inch per Seconds (in3/s)
Volumetric flow rate.
Understanding the Cubic foot per Fortnight (ft3/fn)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic feet per fortnight are in 1 cubic inch per seconds?
1 cubic inch per seconds equals 700 cubic feet per fortnight, using the exact defined conversion factor rather than an estimate.
How do I convert cubic inch per seconds to cubic foot per fortnight?
Multiply the cubic inch per seconds value by 700. The converter above does this instantly to whatever precision you set.
How do I convert cubic foot per fortnight back to cubic inch per seconds?
Use the reverse factor: 1 cubic foot per fortnight equals 0.0014285714 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 cubic foot per fortnight?
Cubic foot per Fortnight (ft3/fn) is a unit of flow rate.
Is the cubic inch per seconds to cubic foot per fortnight conversion exact?
Yes. Both cubic inch per seconds and cubic foot per fortnight are defined by fixed standards rather than physical artifacts, so the factor of 700 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.