Volumetric flow rate.
Cubic Meters per Millisecond to Cubic Kilometer per Seconds Converter — m3/ms to km3/s
Convert Cubic Meter per Millisecond (m3/ms) to Cubic Kilometer per Seconds (km3/s) using the exact conversion factor (1 cubic meter per millisecond = 0.000001 cubic kilometer per seconds). See the formula, worked examples, and conversion table.
Cubic Meters per Millisecond to Cubic Kilometer 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 1000 / 1e+9.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic Meters per Millisecond to Cubic Kilometer per Seconds
Cubic Meter per Millisecond and Cubic Kilometer 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
cubic kilometer per seconds = cubic meters per millisecond × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic meter per millisecond equals 1000 base units, and 1 cubic kilometer per seconds equals 1000000000 base units, so dividing one by the other gives the direct cubic meter per millisecond-to-cubic kilometer per seconds factor of 0.000001.
Simple example
1 m3/ms × 0.000001 = 0.000001 km3/s
1 cubic meter per millisecond = 0.000001 cubic kilometer per seconds.
Real-world example
60 m3/ms × 0.000001 = 0.00006 km3/s
60 cubic meters per millisecond = 0.00006 cubic kilometer per seconds.
Conversion table
| Cubic Meter per Millisecond (m3/ms) | Cubic Kilometer per Seconds (km3/s) |
|---|---|
| 0.1 m3/ms | 1e-7 km3/s |
| 1 m3/ms | 0.000001 km3/s |
| 10 m3/ms | 0.00001 km3/s |
| 60 m3/ms | 0.00006 km3/s |
| 100 m3/ms | 0.0001 km3/s |
| 1,000 m3/ms | 0.001 km3/s |
Reverse conversion: Cubic Kilometer per Seconds to Cubic Meter per Millisecond
0.000001 km3/s × 1000000 = 1 m3/ms
0.000001 cubic kilometer per seconds = 1 cubic meter per millisecond.
cubic meters per millisecond = cubic kilometer per seconds × 1000000
For a page dedicated to this direction, see Cubic Kilometer per Seconds to Cubic Meter per Millisecond.
Understanding the Cubic Meter per Millisecond (m3/ms)
Volumetric flow rate.
Understanding the Cubic Kilometer per Seconds (km3/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic kilometer per seconds are in 1 cubic meter per millisecond?
1 cubic meter per millisecond equals 0.000001 cubic kilometer per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic meter per millisecond to cubic kilometer per seconds?
Multiply the cubic meter per millisecond value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert cubic kilometer per seconds back to cubic meter per millisecond?
Use the reverse factor: 1 cubic kilometer per seconds equals 1,000,000 cubic meters per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic meter per millisecond?
Cubic Meter per Millisecond (m3/ms) is a unit of flow rate.
What is a cubic kilometer per seconds?
Cubic Kilometer per Seconds (km3/s) is a unit of flow rate.
Is the cubic meter per millisecond to cubic kilometer per seconds conversion exact?
Yes. Both cubic meter per millisecond and cubic kilometer per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.000001 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.