Volumetric flow rate.
Cubic foot per Minutes to Imperial quart per Seconds Converter — ft3/min to imp qt/s
Convert Cubic foot per Minutes (ft3/min) to Imperial quart per Seconds (imp qt/s) using the exact conversion factor (1 cubic foot per minutes = 0.4152556973 imperial quart per seconds). See the formula, worked examples, conversion table, and common uses.
Cubic foot per Minutes to Imperial quart 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 0.0004719474432 / 0.0011365225.
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 quart per Seconds
Cubic foot per Minutes and Imperial quart 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. 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 quart per seconds = cubic foot per minutes × 0.41525569727
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 seconds equals 0.0011365225 base units, so dividing one by the other gives the direct cubic foot per minutes-to-imperial quart per seconds factor of 0.41525569727.
Simple example
1 ft3/min × 0.4152556973 = 0.4152556973 imp qt/s
1 cubic foot per minutes = 0.4152556973 imperial quart per seconds.
Real-world example
60 ft3/min × 0.4152556973 = 24.91534184 imp qt/s
60 cubic foot per minutes = 24.91534184 imperial quart per seconds.
Conversion table
| Cubic foot per Minutes (ft3/min) | Imperial quart per Seconds (imp qt/s) |
|---|---|
| 0.1 ft3/min | 0.0415255697 imp qt/s |
| 1 ft3/min | 0.4152556973 imp qt/s |
| 10 ft3/min | 4.152556973 imp qt/s |
| 60 ft3/min | 24.91534184 imp qt/s |
| 100 ft3/min | 41.52556973 imp qt/s |
| 1,000 ft3/min | 415.2556973 imp qt/s |
Reverse conversion: Imperial quart per Seconds to Cubic foot per Minutes
0.4152556973 imp qt/s × 2.408154799 = 1 ft3/min
0.4152556973 imperial quart per seconds = 1 cubic foot per minutes.
cubic foot per minutes = imperial quart per seconds × 2.40815479854
For a page dedicated to this direction, see Imperial quart per Seconds 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 Seconds (imp qt/s)
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 quart per seconds are in 1 cubic foot per minutes?
1 cubic foot per minutes equals 0.4152556973 imperial quart per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per minutes to imperial quart per seconds?
Multiply the cubic foot per minutes value by 0.4152556973. The converter above does this instantly to whatever precision you set.
How do I convert imperial quart per seconds back to cubic foot per minutes?
Use the reverse factor: 1 imperial quart per seconds equals 2.408154799 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 seconds?
Imperial quart per Seconds (imp qt/s) is a unit of flow rate.
Is the cubic foot per minutes to imperial quart per seconds conversion exact?
Yes. Both cubic foot per minutes and imperial quart per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.4152556973 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.