Volumetric flow rate.
Cubic Kilometer per Hours to Gallon per Seconds Converter — km3/h to gal/s
Convert Cubic Kilometer per Hours (km3/h) to Gallon per Seconds (gal/s) using the exact conversion factor (1 cubic kilometer per hours = 73,381,125.66 gallon per seconds). See the formula, worked examples, and conversion table.
Cubic Kilometer per Hours to Gallon 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 277777.7778 / 0.003785411784.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic Kilometer per Hours to Gallon per Seconds
Cubic Kilometer per Hours and Gallon 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
gallon per seconds = cubic kilometer per hours × 73381125.655
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic kilometer per hours equals 277777.777778 base units, and 1 gallon per seconds equals 0.003785411784 base units, so dividing one by the other gives the direct cubic kilometer per hours-to-gallon per seconds factor of 73381125.655.
Simple example
1 km3/h × 73381125.66 = 73,381,125.66 gal/s
1 cubic kilometer per hours = 73,381,125.66 gallon per seconds.
Real-world example
60 km3/h × 73381125.66 = 4,402,867,539 gal/s
60 cubic kilometer per hours = 4,402,867,539 gallon per seconds.
Conversion table
| Cubic Kilometer per Hours (km3/h) | Gallon per Seconds (gal/s) |
|---|---|
| 0.1 km3/h | 7,338,112.566 gal/s |
| 1 km3/h | 73,381,125.66 gal/s |
| 10 km3/h | 733,811,256.6 gal/s |
| 60 km3/h | 4,402,867,539 gal/s |
| 100 km3/h | 7,338,112,566 gal/s |
| 1,000 km3/h | 73,381,125,660 gal/s |
Reverse conversion: Gallon per Seconds to Cubic Kilometer per Hours
1 gal/s × 1.362748e-8 = 1.362748e-8 km3/h
1 gallon per seconds = 1.362748e-8 cubic kilometer per hours.
cubic kilometer per hours = gallon per seconds × 1.362748e-8
For a page dedicated to this direction, see Gallon per Seconds to Cubic Kilometer per Hours.
Understanding the Cubic Kilometer per Hours (km3/h)
Volumetric flow rate.
Understanding the Gallon per Seconds (gal/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallon per seconds are in 1 cubic kilometer per hours?
1 cubic kilometer per hours equals 73,381,125.66 gallon per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic kilometer per hours to gallon per seconds?
Multiply the cubic kilometer per hours value by 73381125.66. The converter above does this instantly to whatever precision you set.
How do I convert gallon per seconds back to cubic kilometer per hours?
Use the reverse factor: 1 gallon per seconds equals 1.362748e-8 cubic kilometer per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic kilometer per hours?
Cubic Kilometer per Hours (km3/h) is a unit of flow rate.
What is a gallon per seconds?
Gallon per Seconds (gal/s) is a unit of flow rate.
Is the cubic kilometer per hours to gallon per seconds conversion exact?
Yes. Both cubic kilometer per hours and gallon per seconds are defined by fixed standards rather than physical artifacts, so the factor of 73381125.66 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.