Volumetric flow rate.
Cubic inches per Millisecond to Imperial gallon per Seconds Converter — in3/ms to imp gal/s
Convert Cubic inch per Millisecond (in3/ms) to Imperial gallon per Seconds (imp gal/s) using the exact conversion factor (1 cubic inch per millisecond = 3.60465015 imperial gallon per seconds). See the formula, worked examples, and conversion table.
Cubic inches per Millisecond to Imperial 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 0.016387064 / 0.00454609.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic inches per Millisecond to Imperial gallon per Seconds
Cubic inch per Millisecond and Imperial 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
imperial gallon per seconds = cubic inches per millisecond × 3.60465014991
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic inch per millisecond equals 0.016387064 base units, and 1 imperial gallon per seconds equals 0.00454609 base units, so dividing one by the other gives the direct cubic inch per millisecond-to-imperial gallon per seconds factor of 3.60465014991.
Simple example
1 in3/ms × 3.60465015 = 3.60465015 imp gal/s
1 cubic inch per millisecond = 3.60465015 imperial gallon per seconds.
Real-world example
60 in3/ms × 3.60465015 = 216.279009 imp gal/s
60 cubic inches per millisecond = 216.279009 imperial gallon per seconds.
Conversion table
| Cubic inch per Millisecond (in3/ms) | Imperial gallon per Seconds (imp gal/s) |
|---|---|
| 0.1 in3/ms | 0.360465015 imp gal/s |
| 1 in3/ms | 3.60465015 imp gal/s |
| 10 in3/ms | 36.0465015 imp gal/s |
| 60 in3/ms | 216.279009 imp gal/s |
| 100 in3/ms | 360.465015 imp gal/s |
| 1,000 in3/ms | 3,604.65015 imp gal/s |
Reverse conversion: Imperial gallon per Seconds to Cubic inch per Millisecond
3.60465015 imp gal/s × 0.2774194328 = 1 in3/ms
3.60465015 imperial gallon per seconds = 1 cubic inches per millisecond.
cubic inches per millisecond = imperial gallon per seconds × 0.277419432792
For a page dedicated to this direction, see Imperial gallon per Seconds to Cubic inch per Millisecond.
Understanding the Cubic inch per Millisecond (in3/ms)
Volumetric flow rate.
Understanding the Imperial gallon per Seconds (imp gal/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial gallon per seconds are in 1 cubic inch per millisecond?
1 cubic inch per millisecond equals 3.60465015 imperial gallon per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic inch per millisecond to imperial gallon per seconds?
Multiply the cubic inch per millisecond value by 3.60465015. The converter above does this instantly to whatever precision you set.
How do I convert imperial gallon per seconds back to cubic inch per millisecond?
Use the reverse factor: 1 imperial gallon per seconds equals 0.2774194328 cubic inches per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic inch per millisecond?
Cubic inch per Millisecond (in3/ms) is a unit of flow rate.
What is a imperial gallon per seconds?
Imperial gallon per Seconds (imp gal/s) is a unit of flow rate.
Is the cubic inch per millisecond to imperial gallon per seconds conversion exact?
Yes. Both cubic inch per millisecond and imperial gallon per seconds are defined by fixed standards rather than physical artifacts, so the factor of 3.60465015 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.