Volumetric flow rate.
Cubic foot per Minutes to Quart per Seconds Converter — ft3/min to qt/s
Convert Cubic foot per Minutes (ft3/min) to Quart per Seconds (qt/s) using the exact conversion factor (1 cubic foot per minutes = 0.4987012987 quart per seconds). See the formula, worked examples, conversion table, and common uses.
Cubic foot per Minutes to 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 / 0.000946352946.
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 Quart per Seconds
Cubic foot per Minutes and 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
quart per seconds = cubic foot per minutes × 0.498701298701
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 quart per seconds equals 0.000946352946 base units, so dividing one by the other gives the direct cubic foot per minutes-to-quart per seconds factor of 0.498701298701.
Simple example
1 ft3/min × 0.4987012987 = 0.4987012987 qt/s
1 cubic foot per minutes = 0.4987012987 quart per seconds.
Real-world example
60 ft3/min × 0.4987012987 = 29.92207792 qt/s
60 cubic foot per minutes = 29.92207792 quart per seconds.
Conversion table
| Cubic foot per Minutes (ft3/min) | Quart per Seconds (qt/s) |
|---|---|
| 0.1 ft3/min | 0.0498701299 qt/s |
| 1 ft3/min | 0.4987012987 qt/s |
| 10 ft3/min | 4.987012987 qt/s |
| 60 ft3/min | 29.92207792 qt/s |
| 100 ft3/min | 49.87012987 qt/s |
| 1,000 ft3/min | 498.7012987 qt/s |
Reverse conversion: Quart per Seconds to Cubic foot per Minutes
0.4987012987 qt/s × 2.005208333 = 1 ft3/min
0.4987012987 quart per seconds = 1 cubic foot per minutes.
cubic foot per minutes = quart per seconds × 2.00520833333
For a page dedicated to this direction, see 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 Quart per Seconds (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 quart per seconds are in 1 cubic foot per minutes?
1 cubic foot per minutes equals 0.4987012987 quart per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per minutes to quart per seconds?
Multiply the cubic foot per minutes value by 0.4987012987. The converter above does this instantly to whatever precision you set.
How do I convert quart per seconds back to cubic foot per minutes?
Use the reverse factor: 1 quart per seconds equals 2.005208333 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 quart per seconds?
Quart per Seconds (qt/s) is a unit of flow rate.
Is the cubic foot per minutes to quart per seconds conversion exact?
Yes. Both cubic foot per minutes and quart per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.4987012987 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.