Volumetric flow rate.
Cubic inches per Millisecond to Gallon per Days Converter — in3/ms to gal/d
Convert Cubic inch per Millisecond (in3/ms) to Gallon per Days (gal/d) using the exact conversion factor (1 cubic inch per millisecond = 374,025.974 gallon per days). See the formula, worked examples, and conversion table.
Cubic inches per Millisecond to Gallon per Days 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 / 4.38126364e-8.
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 Gallon per Days
Cubic inch per Millisecond and Gallon per Days 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 days = cubic inches per millisecond × 374025.974026
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 gallon per days equals 4.381264e-8 base units, so dividing one by the other gives the direct cubic inch per millisecond-to-gallon per days factor of 374025.974026.
Simple example
1 in3/ms × 374025.974 = 374,025.974 gal/d
1 cubic inch per millisecond = 374,025.974 gallon per days.
Real-world example
60 in3/ms × 374025.974 = 22,441,558.44 gal/d
60 cubic inches per millisecond = 22,441,558.44 gallon per days.
Conversion table
| Cubic inch per Millisecond (in3/ms) | Gallon per Days (gal/d) |
|---|---|
| 0.1 in3/ms | 37,402.5974 gal/d |
| 1 in3/ms | 374,025.974 gal/d |
| 10 in3/ms | 3,740,259.74 gal/d |
| 60 in3/ms | 22,441,558.44 gal/d |
| 100 in3/ms | 37,402,597.4 gal/d |
| 1,000 in3/ms | 374,025,974 gal/d |
Reverse conversion: Gallon per Days to Cubic inch per Millisecond
1 gal/d × 0.000002673611111 = 0.0000026736 in3/ms
1 gallon per days = 0.0000026736 cubic inches per millisecond.
cubic inches per millisecond = gallon per days × 0.00000267361111111
For a page dedicated to this direction, see Gallon per Days to Cubic inch per Millisecond.
Understanding the Cubic inch per Millisecond (in3/ms)
Volumetric flow rate.
Understanding the Gallon per Days (gal/d)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallon per days are in 1 cubic inch per millisecond?
1 cubic inch per millisecond equals 374,025.974 gallon per days, using the exact defined conversion factor rather than an estimate.
How do I convert cubic inch per millisecond to gallon per days?
Multiply the cubic inch per millisecond value by 374025.974. The converter above does this instantly to whatever precision you set.
How do I convert gallon per days back to cubic inch per millisecond?
Use the reverse factor: 1 gallon per days equals 0.0000026736 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 gallon per days?
Gallon per Days (gal/d) is a unit of flow rate.
Is the cubic inch per millisecond to gallon per days conversion exact?
Yes. Both cubic inch per millisecond and gallon per days are defined by fixed standards rather than physical artifacts, so the factor of 374025.974 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.