Volumetric flow rate.
Cubic foot per Days to Imperial gallons per Millisecond Converter — ft3/d to imp gal/ms
Convert Cubic foot per Days (ft3/d) to Imperial gallon per Millisecond (imp gal/ms) using the exact conversion factor (1 cubic foot per days = 7.2093e-8 imperial gallon per millisecond). See the formula, worked examples, and conversion table.
Cubic foot per Days to Imperial gallons 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 3.2774128e-7 / 4.54609.
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 Days to Imperial gallons per Millisecond
Cubic foot per Days and Imperial gallon 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. Both are volumetric flow rate units.
Formula
imperial gallons per millisecond = cubic foot per days × 7.2093e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic foot per days equals 3.277413e-7 base units, and 1 imperial gallon per millisecond equals 4.54609 base units, so dividing one by the other gives the direct cubic foot per days-to-imperial gallon per millisecond factor of 7.2093e-8.
Simple example
1 ft3/d × 7.2093e-8 = 7.2093e-8 imp gal/ms
1 cubic foot per days = 7.2093e-8 imperial gallons per millisecond.
Real-world example
60 ft3/d × 7.2093e-8 = 0.0000043256 imp gal/ms
60 cubic foot per days = 0.0000043256 imperial gallons per millisecond.
Conversion table
| Cubic foot per Days (ft3/d) | Imperial gallon per Millisecond (imp gal/ms) |
|---|---|
| 0.1 ft3/d | 7.2093e-9 imp gal/ms |
| 1 ft3/d | 7.2093e-8 imp gal/ms |
| 10 ft3/d | 7.2093e-7 imp gal/ms |
| 60 ft3/d | 0.0000043256 imp gal/ms |
| 100 ft3/d | 0.0000072093 imp gal/ms |
| 1,000 ft3/d | 0.000072093 imp gal/ms |
Reverse conversion: Imperial gallon per Millisecond to Cubic foot per Days
7.2093e-8 imp gal/ms × 13870971.64 = 0.9999999584 ft3/d
7.2093e-8 imperial gallons per millisecond = 0.9999999584 cubic foot per days.
cubic foot per days = imperial gallons per millisecond × 13870971.6396
For a page dedicated to this direction, see Imperial gallon per Millisecond to Cubic foot per Days.
Understanding the Cubic foot per Days (ft3/d)
Volumetric flow rate.
Understanding the Imperial gallon per Millisecond (imp gal/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial gallons per millisecond are in 1 cubic foot per days?
1 cubic foot per days equals 7.2093e-8 imperial gallons per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per days to imperial gallon per millisecond?
Multiply the cubic foot per days value by 7.2093e-8. The converter above does this instantly to whatever precision you set.
How do I convert imperial gallon per millisecond back to cubic foot per days?
Use the reverse factor: 1 imperial gallon per millisecond equals 13,870,971.64 cubic foot per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic foot per days?
Cubic foot per Days (ft3/d) is a unit of flow rate.
What is a imperial gallon per millisecond?
Imperial gallon per Millisecond (imp gal/ms) is a unit of flow rate.
Is the cubic foot per days to imperial gallon per millisecond conversion exact?
Yes. Both cubic foot per days and imperial gallon per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 7.2093e-8 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.