Volumetric flow rate.
Cubic feet per Millisecond to Gallon per Seconds Converter — ft3/ms to gal/s
Convert Cubic foot per Millisecond (ft3/ms) to Gallon per Seconds (gal/s) using the exact conversion factor (1 cubic foot per millisecond = 7,480.519481 gallon per seconds). See the formula, worked examples, and conversion table.
Cubic feet per Millisecond to Gallon 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 28.31684659 / 0.003785411784.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic feet per Millisecond to Gallon per Seconds
Cubic foot per Millisecond and Gallon 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. Both are volumetric flow rate units.
Formula
gallon per seconds = cubic feet per millisecond × 7480.51948052
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic foot per millisecond equals 28.316846592 base units, and 1 gallon per seconds equals 0.003785411784 base units, so dividing one by the other gives the direct cubic foot per millisecond-to-gallon per seconds factor of 7480.51948052.
Simple example
1 ft3/ms × 7480.519481 = 7,480.519481 gal/s
1 cubic foot per millisecond = 7,480.519481 gallon per seconds.
Real-world example
60 ft3/ms × 7480.519481 = 448,831.1688 gal/s
60 cubic feet per millisecond = 448,831.1688 gallon per seconds.
Conversion table
| Cubic foot per Millisecond (ft3/ms) | Gallon per Seconds (gal/s) |
|---|---|
| 0.1 ft3/ms | 748.0519481 gal/s |
| 1 ft3/ms | 7,480.519481 gal/s |
| 10 ft3/ms | 74,805.19481 gal/s |
| 60 ft3/ms | 448,831.1688 gal/s |
| 100 ft3/ms | 748,051.9481 gal/s |
| 1,000 ft3/ms | 7,480,519.481 gal/s |
Reverse conversion: Gallon per Seconds to Cubic foot per Millisecond
1 gal/s × 0.0001336805556 = 0.0001336806 ft3/ms
1 gallon per seconds = 0.0001336806 cubic feet per millisecond.
cubic feet per millisecond = gallon per seconds × 0.000133680555556
For a page dedicated to this direction, see Gallon per Seconds to Cubic foot per Millisecond.
Understanding the Cubic foot per Millisecond (ft3/ms)
Volumetric flow rate.
Understanding the Gallon per Seconds (gal/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallon per seconds are in 1 cubic foot per millisecond?
1 cubic foot per millisecond equals 7,480.519481 gallon per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per millisecond to gallon per seconds?
Multiply the cubic foot per millisecond value by 7480.519481. The converter above does this instantly to whatever precision you set.
How do I convert gallon per seconds back to cubic foot per millisecond?
Use the reverse factor: 1 gallon per seconds equals 0.0001336806 cubic feet per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic foot per millisecond?
Cubic foot per Millisecond (ft3/ms) is a unit of flow rate.
What is a gallon per seconds?
Gallon per Seconds (gal/s) is a unit of flow rate.
Is the cubic foot per millisecond to gallon per seconds conversion exact?
Yes. Both cubic foot per millisecond and gallon per seconds are defined by fixed standards rather than physical artifacts, so the factor of 7480.519481 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.