Volumetric flow rate.
Cubic foot per Minutes to Imperial gallons per Millisecond Converter — ft3/min to imp gal/ms
Convert Cubic foot per Minutes (ft3/min) to Imperial gallon per Millisecond (imp gal/ms) using the exact conversion factor (1 cubic foot per minutes = 0.0001038139 imperial gallon per millisecond). See the formula, worked examples, conversion table, and common uses.
Cubic foot per Minutes to Imperial 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 0.0004719474432 / 4.54609.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic foot per Minutes to Imperial gallons per Millisecond
Cubic foot per Minutes and Imperial 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. Cubic foot per Minutes is most often used for the standard unit for rating hvac airflow, compressed-air equipment output, and fan/blower performance.
Formula
imperial gallons per millisecond = cubic foot per minutes × 0.000103813924317
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic foot per minutes equals 0.0004719474432 base units, and 1 imperial gallon per millisecond equals 4.54609 base units, so dividing one by the other gives the direct cubic foot per minutes-to-imperial gallon per millisecond factor of 0.000103813924317.
Simple example
1 ft3/min × 0.0001038139243 = 0.0001038139 imp gal/ms
1 cubic foot per minutes = 0.0001038139 imperial gallons per millisecond.
Real-world example
60 ft3/min × 0.0001038139243 = 0.0062288355 imp gal/ms
60 cubic foot per minutes = 0.0062288355 imperial gallons per millisecond.
Conversion table
| Cubic foot per Minutes (ft3/min) | Imperial gallon per Millisecond (imp gal/ms) |
|---|---|
| 0.1 ft3/min | 0.0000103814 imp gal/ms |
| 1 ft3/min | 0.0001038139 imp gal/ms |
| 10 ft3/min | 0.0010381392 imp gal/ms |
| 60 ft3/min | 0.0062288355 imp gal/ms |
| 100 ft3/min | 0.0103813924 imp gal/ms |
| 1,000 ft3/min | 0.1038139243 imp gal/ms |
Reverse conversion: Imperial gallon per Millisecond to Cubic foot per Minutes
0.0001038139 imp gal/ms × 9632.619194 = 0.9999997658 ft3/min
0.0001038139 imperial gallons per millisecond = 0.9999997658 cubic foot per minutes.
cubic foot per minutes = imperial gallons per millisecond × 9632.61919415
For a page dedicated to this direction, see Imperial gallon per Millisecond to Cubic foot per Minutes.
Understanding the Cubic foot per Minutes
Cubic foot per Minutes (ft3/min) measures volumetric flow rate. One cubic foot of volume passing a point every minute. It is classified as a US customary flow-rate unit.
Where it's used: United States, and widely recognized internationally in HVAC and compressed-air equipment specifications
Uses of the Cubic foot per Minutes today
- The standard unit for rating HVAC airflow, compressed-air equipment output, and fan/blower performance
Understanding the Imperial gallon per Millisecond (imp gal/ms)
Volumetric flow rate.
Cubic foot per Minutes — sources
- AMCA / ASHRAE HVAC industry standards — CFM is the conventional unit for airflow ratings in HVAC and industrial air-moving equipment.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial gallons per millisecond are in 1 cubic foot per minutes?
1 cubic foot per minutes equals 0.0001038139 imperial gallons per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per minutes to imperial gallon per millisecond?
Multiply the cubic foot per minutes value by 0.0001038139243. The converter above does this instantly to whatever precision you set.
How do I convert imperial gallon per millisecond back to cubic foot per minutes?
Use the reverse factor: 1 imperial gallon per millisecond equals 9,632.619194 cubic foot per minutes. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic foot per minutes?
Cubic foot per Minutes (ft3/min) measures volumetric flow rate. One cubic foot of volume passing a point every minute. It is classified as a US customary flow-rate unit.
What is a imperial gallon per millisecond?
Imperial gallon per Millisecond (imp gal/ms) is a unit of flow rate.
Is the cubic foot per minutes to imperial gallon per millisecond conversion exact?
Yes. Both cubic foot per minutes and imperial gallon per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 0.0001038139243 used above is exact to as many digits as you choose to display.
Where is the cubic foot per minutes still used today?
United States, and widely recognized internationally in HVAC and compressed-air equipment specifications
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.