Volumetric flow rate.
Gallon per Hours to Cubic Kilometer per Hours Converter — gal/h to km3/h
Convert Gallon per Hours (gal/h) to Cubic Kilometer per Hours (km3/h) using the exact conversion factor (1 gallon per hours = 3.785412e-12 cubic kilometer per hours). See the formula, worked examples, and conversion table.
Gallon per Hours to Cubic Kilometer per Hours 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 1.05150327e-6 / 277777.7778.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallon per Hours to Cubic Kilometer per Hours
Gallon per Hours and Cubic Kilometer per Hours 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 hours = gallon per hours × 3.785412e-12
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per hours equals 0.00000105150327333 base units, and 1 cubic kilometer per hours equals 277777.777778 base units, so dividing one by the other gives the direct gallon per hours-to-cubic kilometer per hours factor of 3.785412e-12.
Simple example
1 gal/h × 3.785412e-12 = 3.785412e-12 km3/h
1 gallon per hours = 3.785412e-12 cubic kilometer per hours.
Real-world example
60 gal/h × 3.785412e-12 = 2.271247e-10 km3/h
60 gallon per hours = 2.271247e-10 cubic kilometer per hours.
Conversion table
| Gallon per Hours (gal/h) | Cubic Kilometer per Hours (km3/h) |
|---|---|
| 0.1 gal/h | 3.785412e-13 km3/h |
| 1 gal/h | 3.785412e-12 km3/h |
| 10 gal/h | 3.785412e-11 km3/h |
| 60 gal/h | 2.271247e-10 km3/h |
| 100 gal/h | 3.785412e-10 km3/h |
| 1,000 gal/h | 3.785412e-9 km3/h |
Reverse conversion: Cubic Kilometer per Hours to Gallon per Hours
3.785412e-12 km3/h × 264172052400 = 1.000000057 gal/h
3.785412e-12 cubic kilometer per hours = 1.000000057 gallon per hours.
gallon per hours = cubic kilometer per hours × 264172052358
For a page dedicated to this direction, see Cubic Kilometer per Hours to Gallon per Hours.
Understanding the Gallon per Hours (gal/h)
Volumetric flow rate.
Understanding the Cubic Kilometer per Hours (km3/h)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic kilometer per hours are in 1 gallon per hours?
1 gallon per hours equals 3.785412e-12 cubic kilometer per hours, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per hours to cubic kilometer per hours?
Multiply the gallon per hours value by 3.785412e-12. The converter above does this instantly to whatever precision you set.
How do I convert cubic kilometer per hours back to gallon per hours?
Use the reverse factor: 1 cubic kilometer per hours equals 264,172,052,400 gallon per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per hours?
Gallon per Hours (gal/h) is a unit of flow rate.
What is a cubic kilometer per hours?
Cubic Kilometer per Hours (km3/h) is a unit of flow rate.
Is the gallon per hours to cubic kilometer per hours conversion exact?
Yes. Both gallon per hours and cubic kilometer per hours are defined by fixed standards rather than physical artifacts, so the factor of 3.785412e-12 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.