Volumetric flow rate.
Imperial gallons per Millisecond to Cubic inch per Hours Converter — imp gal/ms to in3/h
Convert Imperial gallon per Millisecond (imp gal/ms) to Cubic inch per Hours (in3/h) using the exact conversion factor (1 imperial gallon per millisecond = 998,709,958 cubic inch per hours). See the formula, worked examples, and conversion table.
Imperial gallons per Millisecond to Cubic inch per Hours 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 4.54609 / 4.55196222e-9.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Imperial gallons per Millisecond to Cubic inch per Hours
Imperial gallon per Millisecond and Cubic inch per Hours 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 inch per hours = imperial gallons per millisecond × 998709958.05
This factor comes from each unit's defined relationship to the category's base unit: 1 imperial gallon per millisecond equals 4.54609 base units, and 1 cubic inch per hours equals 4.551962e-9 base units, so dividing one by the other gives the direct imperial gallon per millisecond-to-cubic inch per hours factor of 998709958.05.
Simple example
1 imp gal/ms × 998709958 = 998,709,958 in3/h
1 imperial gallon per millisecond = 998,709,958 cubic inch per hours.
Real-world example
60 imp gal/ms × 998709958 = 59,922,597,480 in3/h
60 imperial gallons per millisecond = 59,922,597,480 cubic inch per hours.
Conversion table
| Imperial gallon per Millisecond (imp gal/ms) | Cubic inch per Hours (in3/h) |
|---|---|
| 0.1 imp gal/ms | 99,870,995.8 in3/h |
| 1 imp gal/ms | 998,709,958 in3/h |
| 10 imp gal/ms | 9,987,099,580 in3/h |
| 60 imp gal/ms | 59,922,597,480 in3/h |
| 100 imp gal/ms | 99,870,995,800 in3/h |
| 1,000 imp gal/ms | 998,709,958,000 in3/h |
Reverse conversion: Cubic inch per Hours to Imperial gallon per Millisecond
1 in3/h × 1.001292e-9 = 1.001292e-9 imp gal/ms
1 cubic inch per hours = 1.001292e-9 imperial gallons per millisecond.
imperial gallons per millisecond = cubic inch per hours × 1.001292e-9
For a page dedicated to this direction, see Cubic inch per Hours to Imperial gallon per Millisecond.
Understanding the Imperial gallon per Millisecond (imp gal/ms)
Volumetric flow rate.
Understanding the Cubic inch per Hours (in3/h)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic inch per hours are in 1 imperial gallon per millisecond?
1 imperial gallon per millisecond equals 998,709,958 cubic inch per hours, using the exact defined conversion factor rather than an estimate.
How do I convert imperial gallon per millisecond to cubic inch per hours?
Multiply the imperial gallon per millisecond value by 998709958. The converter above does this instantly to whatever precision you set.
How do I convert cubic inch per hours back to imperial gallon per millisecond?
Use the reverse factor: 1 cubic inch per hours equals 1.001292e-9 imperial gallons per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a imperial gallon per millisecond?
Imperial gallon per Millisecond (imp gal/ms) is a unit of flow rate.
What is a cubic inch per hours?
Cubic inch per Hours (in3/h) is a unit of flow rate.
Is the imperial gallon per millisecond to cubic inch per hours conversion exact?
Yes. Both imperial gallon per millisecond and cubic inch per hours are defined by fixed standards rather than physical artifacts, so the factor of 998709958 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.