Volumetric flow rate.
Cubic Kilometer per Hours to Gallons per Millisecond Converter — km3/h to gal/ms
Convert Cubic Kilometer per Hours (km3/h) to Gallon per Millisecond (gal/ms) using the exact conversion factor (1 cubic kilometer per hours = 73,381.12566 gallon per millisecond). See the formula, worked examples, and conversion table.
Cubic Kilometer per Hours to Gallons per Millisecond 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 / 3.785411784.
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 Gallons per Millisecond
Cubic Kilometer per Hours and Gallon per Millisecond 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
gallons per millisecond = cubic kilometer per hours × 73381.125655
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 millisecond equals 3.785411784 base units, so dividing one by the other gives the direct cubic kilometer per hours-to-gallon per millisecond factor of 73381.125655.
Simple example
1 km3/h × 73381.12566 = 73,381.12566 gal/ms
1 cubic kilometer per hours = 73,381.12566 gallons per millisecond.
Real-world example
60 km3/h × 73381.12566 = 4,402,867.539 gal/ms
60 cubic kilometer per hours = 4,402,867.539 gallons per millisecond.
Conversion table
| Cubic Kilometer per Hours (km3/h) | Gallon per Millisecond (gal/ms) |
|---|---|
| 0.1 km3/h | 7,338.112566 gal/ms |
| 1 km3/h | 73,381.12566 gal/ms |
| 10 km3/h | 733,811.2566 gal/ms |
| 60 km3/h | 4,402,867.539 gal/ms |
| 100 km3/h | 7,338,112.566 gal/ms |
| 1,000 km3/h | 73,381,125.66 gal/ms |
Reverse conversion: Gallon per Millisecond to Cubic Kilometer per Hours
1 gal/ms × 0.00001362748242 = 0.0000136275 km3/h
1 gallon per millisecond = 0.0000136275 cubic kilometer per hours.
cubic kilometer per hours = gallons per millisecond × 0.0000136274824224
For a page dedicated to this direction, see Gallon per Millisecond to Cubic Kilometer per Hours.
Understanding the Cubic Kilometer per Hours (km3/h)
Volumetric flow rate.
Understanding the Gallon per Millisecond (gal/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallons per millisecond are in 1 cubic kilometer per hours?
1 cubic kilometer per hours equals 73,381.12566 gallons per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert cubic kilometer per hours to gallon per millisecond?
Multiply the cubic kilometer per hours value by 73381.12566. The converter above does this instantly to whatever precision you set.
How do I convert gallon per millisecond back to cubic kilometer per hours?
Use the reverse factor: 1 gallon per millisecond equals 0.0000136275 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 millisecond?
Gallon per Millisecond (gal/ms) is a unit of flow rate.
Is the cubic kilometer per hours to gallon per millisecond conversion exact?
Yes. Both cubic kilometer per hours and gallon per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 73381.12566 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.