Volumetric flow rate.
Cubic foot per Minutes to Imperial quarts per Millisecond Converter — ft3/min to imp qt/ms
Convert Cubic foot per Minutes (ft3/min) to Imperial quart per Millisecond (imp qt/ms) using the exact conversion factor (1 cubic foot per minutes = 0.0004152557 imperial quart per millisecond). See the formula, worked examples, conversion table, and common uses.
Cubic foot per Minutes to Imperial quarts 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 / 1.1365225.
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 quarts per Millisecond
Cubic foot per Minutes and Imperial quart 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 quarts per millisecond = cubic foot per minutes × 0.00041525569727
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 quart per millisecond equals 1.1365225 base units, so dividing one by the other gives the direct cubic foot per minutes-to-imperial quart per millisecond factor of 0.00041525569727.
Simple example
1 ft3/min × 0.0004152556973 = 0.0004152557 imp qt/ms
1 cubic foot per minutes = 0.0004152557 imperial quarts per millisecond.
Real-world example
60 ft3/min × 0.0004152556973 = 0.0249153418 imp qt/ms
60 cubic foot per minutes = 0.0249153418 imperial quarts per millisecond.
Conversion table
| Cubic foot per Minutes (ft3/min) | Imperial quart per Millisecond (imp qt/ms) |
|---|---|
| 0.1 ft3/min | 0.0000415256 imp qt/ms |
| 1 ft3/min | 0.0004152557 imp qt/ms |
| 10 ft3/min | 0.004152557 imp qt/ms |
| 60 ft3/min | 0.0249153418 imp qt/ms |
| 100 ft3/min | 0.0415255697 imp qt/ms |
| 1,000 ft3/min | 0.4152556973 imp qt/ms |
Reverse conversion: Imperial quart per Millisecond to Cubic foot per Minutes
0.0004152557 imp qt/ms × 2408.154799 = 1.000000007 ft3/min
0.0004152557 imperial quarts per millisecond = 1.000000007 cubic foot per minutes.
cubic foot per minutes = imperial quarts per millisecond × 2408.15479854
For a page dedicated to this direction, see Imperial quart 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 quart per Millisecond (imp qt/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 quarts per millisecond are in 1 cubic foot per minutes?
1 cubic foot per minutes equals 0.0004152557 imperial quarts per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per minutes to imperial quart per millisecond?
Multiply the cubic foot per minutes value by 0.0004152556973. The converter above does this instantly to whatever precision you set.
How do I convert imperial quart per millisecond back to cubic foot per minutes?
Use the reverse factor: 1 imperial quart per millisecond equals 2,408.154799 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 quart per millisecond?
Imperial quart per Millisecond (imp qt/ms) is a unit of flow rate.
Is the cubic foot per minutes to imperial quart per millisecond conversion exact?
Yes. Both cubic foot per minutes and imperial quart per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 0.0004152556973 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.