Volumetric flow rate.
Gallons per Fortnight to Cubic Kilometer per Seconds Converter — gal/fn to km3/s
Convert Gallon per Fortnight (gal/fn) to Cubic Kilometer per Seconds (km3/s) using the exact conversion factor (1 gallon per fortnight = 3.129474e-18 cubic kilometer per seconds). See the formula, worked examples, and conversion table.
Gallons per Fortnight to Cubic Kilometer per Seconds 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 / 1e+9.
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 Kilometer per Seconds
Gallon per Fortnight and Cubic Kilometer per Seconds 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 kilometer per seconds = gallons per fortnight × 3.129474e-18
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 kilometer per seconds equals 1000000000 base units, so dividing one by the other gives the direct gallon per fortnight-to-cubic kilometer per seconds factor of 3.129474e-18.
Simple example
1 gal/fn × 3.129474e-18 = 3.129474e-18 km3/s
1 gallon per fortnight = 3.129474e-18 cubic kilometer per seconds.
Real-world example
60 gal/fn × 3.129474e-18 = 1.877684e-16 km3/s
60 gallons per fortnight = 1.877684e-16 cubic kilometer per seconds.
Conversion table
| Gallon per Fortnight (gal/fn) | Cubic Kilometer per Seconds (km3/s) |
|---|---|
| 0.1 gal/fn | 3.129474e-19 km3/s |
| 1 gal/fn | 3.129474e-18 km3/s |
| 10 gal/fn | 3.129474e-17 km3/s |
| 60 gal/fn | 1.877684e-16 km3/s |
| 100 gal/fn | 3.129474e-16 km3/s |
| 1,000 gal/fn | 3.129474e-15 km3/s |
Reverse conversion: Cubic Kilometer per Seconds to Gallon per Fortnight
3.129474e-18 km3/s × 3.195425e+17 = 0.9999999911 gal/fn
3.129474e-18 cubic kilometer per seconds = 0.9999999911 gallons per fortnight.
gallons per fortnight = cubic kilometer per seconds × 3.195425e+17
For a page dedicated to this direction, see Cubic Kilometer per Seconds to Gallon per Fortnight.
Understanding the Gallon per Fortnight (gal/fn)
Volumetric flow rate.
Understanding the Cubic Kilometer per Seconds (km3/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic kilometer per seconds are in 1 gallon per fortnight?
1 gallon per fortnight equals 3.129474e-18 cubic kilometer per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per fortnight to cubic kilometer per seconds?
Multiply the gallon per fortnight value by 3.129474e-18. The converter above does this instantly to whatever precision you set.
How do I convert cubic kilometer per seconds back to gallon per fortnight?
Use the reverse factor: 1 cubic kilometer per seconds equals 3.195425e+17 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 kilometer per seconds?
Cubic Kilometer per Seconds (km3/s) is a unit of flow rate.
Is the gallon per fortnight to cubic kilometer per seconds conversion exact?
Yes. Both gallon per fortnight and cubic kilometer per seconds are defined by fixed standards rather than physical artifacts, so the factor of 3.129474e-18 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.