Volumetric flow rate.
Cubic inch per Seconds to Cubic foot per Minutes Converter — in3/s to ft3/min
Convert Cubic inch per Seconds (in3/s) to Cubic foot per Minutes (ft3/min) using the exact conversion factor (1 cubic inch per seconds = 0.0347222222 cubic foot per minutes). See the formula, worked examples, conversion table, and common uses.
Cubic inch per Seconds to Cubic foot per Minutes 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 1.6387064e-5 / 0.0004719474432.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic inch per Seconds to Cubic foot per Minutes
Cubic inch per Seconds and Cubic foot per Minutes 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 foot per minutes = cubic inch per seconds × 0.0347222222222
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic inch per seconds equals 0.000016387064 base units, and 1 cubic foot per minutes equals 0.0004719474432 base units, so dividing one by the other gives the direct cubic inch per seconds-to-cubic foot per minutes factor of 0.0347222222222.
Simple example
1 in3/s × 0.03472222222 = 0.0347222222 ft3/min
1 cubic inch per seconds = 0.0347222222 cubic foot per minutes.
Real-world example
60 in3/s × 0.03472222222 = 2.083333333 ft3/min
60 cubic inch per seconds = 2.083333333 cubic foot per minutes.
Conversion table
| Cubic inch per Seconds (in3/s) | Cubic foot per Minutes (ft3/min) |
|---|---|
| 0.1 in3/s | 0.0034722222 ft3/min |
| 1 in3/s | 0.0347222222 ft3/min |
| 10 in3/s | 0.3472222222 ft3/min |
| 60 in3/s | 2.083333333 ft3/min |
| 100 in3/s | 3.472222222 ft3/min |
| 1,000 in3/s | 34.72222222 ft3/min |
Reverse conversion: Cubic foot per Minutes to Cubic inch per Seconds
0.0347222222 ft3/min × 28.8 = 0.9999999994 in3/s
0.0347222222 cubic foot per minutes = 0.9999999994 cubic inch per seconds.
cubic inch per seconds = cubic foot per minutes × 28.8
For a page dedicated to this direction, see Cubic foot per Minutes to Cubic inch per Seconds.
Understanding the Cubic inch per Seconds (in3/s)
Volumetric flow rate.
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
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 cubic foot per minutes are in 1 cubic inch per seconds?
1 cubic inch per seconds equals 0.0347222222 cubic foot per minutes, using the exact defined conversion factor rather than an estimate.
How do I convert cubic inch per seconds to cubic foot per minutes?
Multiply the cubic inch per seconds value by 0.03472222222. The converter above does this instantly to whatever precision you set.
How do I convert cubic foot per minutes back to cubic inch per seconds?
Use the reverse factor: 1 cubic foot per minutes equals 28.8 cubic inch per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic inch per seconds?
Cubic inch per Seconds (in3/s) is a unit of flow rate.
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.
Is the cubic inch per seconds to cubic foot per minutes conversion exact?
Yes. Both cubic inch per seconds and cubic foot per minutes are defined by fixed standards rather than physical artifacts, so the factor of 0.03472222222 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.