Volumetric flow rate.
Cubic Kilometers per Millisecond to Gallon per Seconds Converter — km3/ms to gal/s
Convert Cubic Kilometer per Millisecond (km3/ms) to Gallon per Seconds (gal/s) using the exact conversion factor (1 cubic kilometer per millisecond = 2.641721e+14 gallon per seconds). See the formula, worked examples, and conversion table.
Cubic Kilometers per Millisecond 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 1e+12 / 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 Kilometers per Millisecond to Gallon per Seconds
Cubic Kilometer per Millisecond 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 kilometers per millisecond × 2.641721e+14
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic kilometer per millisecond equals 1e+12 base units, and 1 gallon per seconds equals 0.003785411784 base units, so dividing one by the other gives the direct cubic kilometer per millisecond-to-gallon per seconds factor of 2.641721e+14.
Simple example
1 km3/ms × 2.641721e+14 = 2.641721e+14 gal/s
1 cubic kilometer per millisecond = 2.641721e+14 gallon per seconds.
Real-world example
60 km3/ms × 2.641721e+14 = 1.585032e+16 gal/s
60 cubic kilometers per millisecond = 1.585032e+16 gallon per seconds.
Conversion table
| Cubic Kilometer per Millisecond (km3/ms) | Gallon per Seconds (gal/s) |
|---|---|
| 0.1 km3/ms | 2.641721e+13 gal/s |
| 1 km3/ms | 2.641721e+14 gal/s |
| 10 km3/ms | 2.641721e+15 gal/s |
| 60 km3/ms | 1.585032e+16 gal/s |
| 100 km3/ms | 2.641721e+16 gal/s |
| 1,000 km3/ms | 2.641721e+17 gal/s |
Reverse conversion: Gallon per Seconds to Cubic Kilometer per Millisecond
2.641721e+14 gal/s × 3.785412e-15 = 1.00000018 km3/ms
2.641721e+14 gallon per seconds = 1.00000018 cubic kilometers per millisecond.
cubic kilometers per millisecond = gallon per seconds × 3.785412e-15
For a page dedicated to this direction, see Gallon per Seconds to Cubic Kilometer per Millisecond.
Understanding the Cubic Kilometer per Millisecond (km3/ms)
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 millisecond?
1 cubic kilometer per millisecond equals 2.641721e+14 gallon per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic kilometer per millisecond to gallon per seconds?
Multiply the cubic kilometer per millisecond value by 2.641721e+14. The converter above does this instantly to whatever precision you set.
How do I convert gallon per seconds back to cubic kilometer per millisecond?
Use the reverse factor: 1 gallon per seconds equals 3.785412e-15 cubic kilometers per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic kilometer per millisecond?
Cubic Kilometer per Millisecond (km3/ms) 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 millisecond to gallon per seconds conversion exact?
Yes. Both cubic kilometer per millisecond and gallon per seconds are defined by fixed standards rather than physical artifacts, so the factor of 2.641721e+14 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.