Volumetric flow rate.
Gallons per Millisecond to Cubic Meter per Hours Converter — gal/ms to m3/h
Convert Gallon per Millisecond (gal/ms) to Cubic Meter per Hours (m3/h) using the exact conversion factor (1 gallon per millisecond = 13,627.48242 cubic meter per hours). See the formula, worked examples, conversion table, and common uses.
Gallons per Millisecond to Cubic Meter 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 3.785411784 / 0.0002777777778.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallons per Millisecond to Cubic Meter per Hours
Gallon per Millisecond and Cubic Meter 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 meter per hours = gallons per millisecond × 13627.4824224
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per millisecond equals 3.785411784 base units, and 1 cubic meter per hours equals 0.000277777777778 base units, so dividing one by the other gives the direct gallon per millisecond-to-cubic meter per hours factor of 13627.4824224.
Simple example
1 gal/ms × 13627.48242 = 13,627.48242 m3/h
1 gallon per millisecond = 13,627.48242 cubic meter per hours.
Real-world example
60 gal/ms × 13627.48242 = 817,648.9453 m3/h
60 gallons per millisecond = 817,648.9453 cubic meter per hours.
Conversion table
| Gallon per Millisecond (gal/ms) | Cubic Meter per Hours (m3/h) |
|---|---|
| 0.1 gal/ms | 1,362.748242 m3/h |
| 1 gal/ms | 13,627.48242 m3/h |
| 10 gal/ms | 136,274.8242 m3/h |
| 60 gal/ms | 817,648.9453 m3/h |
| 100 gal/ms | 1,362,748.242 m3/h |
| 1,000 gal/ms | 13,627,482.42 m3/h |
Reverse conversion: Cubic Meter per Hours to Gallon per Millisecond
1 m3/h × 0.00007338112566 = 0.0000733811 gal/ms
1 cubic meter per hours = 0.0000733811 gallons per millisecond.
gallons per millisecond = cubic meter per hours × 0.000073381125655
For a page dedicated to this direction, see Cubic Meter per Hours to Gallon per Millisecond.
Understanding the Gallon per Millisecond (gal/ms)
Volumetric flow rate.
Understanding the Cubic Meter per Hours
Cubic Meter per Hours (m3/h) measures volumetric flow rate. One cubic meter of volume passing a point every hour — a common scale for equipment and system flow ratings. It is classified as a metric derived flow-rate unit.
Where it's used: Standard flow-rate unit for HVAC and industrial equipment ratings internationally, outside the US
Uses of the Cubic Meter per Hours today
- HVAC equipment airflow and liquid-flow ratings
- Industrial pump and system flow specifications
- Building ventilation system design
Cubic Meter per Hours — sources
- ISO 5167 (flow measurement standards) — Cubic meters per hour as a standard industrial flow-rate unit.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic meter per hours are in 1 gallon per millisecond?
1 gallon per millisecond equals 13,627.48242 cubic meter per hours, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per millisecond to cubic meter per hours?
Multiply the gallon per millisecond value by 13627.48242. The converter above does this instantly to whatever precision you set.
How do I convert cubic meter per hours back to gallon per millisecond?
Use the reverse factor: 1 cubic meter per hours equals 0.0000733811 gallons per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per millisecond?
Gallon per Millisecond (gal/ms) is a unit of flow rate.
What is a cubic meter per hours?
Cubic Meter per Hours (m3/h) measures volumetric flow rate. One cubic meter of volume passing a point every hour — a common scale for equipment and system flow ratings. It is classified as a metric derived flow-rate unit.
Is the gallon per millisecond to cubic meter per hours conversion exact?
Yes. Both gallon per millisecond and cubic meter per hours are defined by fixed standards rather than physical artifacts, so the factor of 13627.48242 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.