Volumetric flow rate.
Cubic Kilometer per Days to Gallon per Seconds Converter — km3/d to gal/s
Convert Cubic Kilometer per Days (km3/d) to Gallon per Seconds (gal/s) using the exact conversion factor (1 cubic kilometer per days = 3,057,546.902 gallon per seconds). See the formula, worked examples, and conversion table.
Cubic Kilometer per Days 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 11574.07407 / 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 Days to Gallon per Seconds
Cubic Kilometer per Days 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 days × 3057546.90229
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic kilometer per days equals 11574.0740741 base units, and 1 gallon per seconds equals 0.003785411784 base units, so dividing one by the other gives the direct cubic kilometer per days-to-gallon per seconds factor of 3057546.90229.
Simple example
1 km3/d × 3057546.902 = 3,057,546.902 gal/s
1 cubic kilometer per days = 3,057,546.902 gallon per seconds.
Real-world example
60 km3/d × 3057546.902 = 183,452,814.1 gal/s
60 cubic kilometer per days = 183,452,814.1 gallon per seconds.
Conversion table
| Cubic Kilometer per Days (km3/d) | Gallon per Seconds (gal/s) |
|---|---|
| 0.1 km3/d | 305,754.6902 gal/s |
| 1 km3/d | 3,057,546.902 gal/s |
| 10 km3/d | 30,575,469.02 gal/s |
| 60 km3/d | 183,452,814.1 gal/s |
| 100 km3/d | 305,754,690.2 gal/s |
| 1,000 km3/d | 3,057,546,902 gal/s |
Reverse conversion: Gallon per Seconds to Cubic Kilometer per Days
1 gal/s × 3.270596e-7 = 3.270596e-7 km3/d
1 gallon per seconds = 3.270596e-7 cubic kilometer per days.
cubic kilometer per days = gallon per seconds × 3.270596e-7
For a page dedicated to this direction, see Gallon per Seconds to Cubic Kilometer per Days.
Understanding the Cubic Kilometer per Days (km3/d)
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 days?
1 cubic kilometer per days equals 3,057,546.902 gallon per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic kilometer per days to gallon per seconds?
Multiply the cubic kilometer per days value by 3057546.902. The converter above does this instantly to whatever precision you set.
How do I convert gallon per seconds back to cubic kilometer per days?
Use the reverse factor: 1 gallon per seconds equals 3.270596e-7 cubic kilometer per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic kilometer per days?
Cubic Kilometer per Days (km3/d) 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 days to gallon per seconds conversion exact?
Yes. Both cubic kilometer per days and gallon per seconds are defined by fixed standards rather than physical artifacts, so the factor of 3057546.902 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.