Volumetric flow rate.
Imperial gallon per Hours to Cubic inch per Days Converter — imp gal/h to in3/d
Convert Imperial gallon per Hours (imp gal/h) to Cubic inch per Days (in3/d) using the exact conversion factor (1 imperial gallon per hours = 6,658.066387 cubic inch per days). See the formula, worked examples, and conversion table.
Imperial gallon per Hours to Cubic inch 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 1.26280278e-6 / 1.89665093e-10.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Imperial gallon per Hours to Cubic inch per Days
Imperial gallon per Hours and Cubic inch 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
cubic inch per days = imperial gallon per hours × 6658.066387
This factor comes from each unit's defined relationship to the category's base unit: 1 imperial gallon per hours equals 0.00000126280277778 base units, and 1 cubic inch per days equals 1.896651e-10 base units, so dividing one by the other gives the direct imperial gallon per hours-to-cubic inch per days factor of 6658.066387.
Simple example
1 imp gal/h × 6658.066387 = 6,658.066387 in3/d
1 imperial gallon per hours = 6,658.066387 cubic inch per days.
Real-world example
60 imp gal/h × 6658.066387 = 399,483.9832 in3/d
60 imperial gallon per hours = 399,483.9832 cubic inch per days.
Conversion table
| Imperial gallon per Hours (imp gal/h) | Cubic inch per Days (in3/d) |
|---|---|
| 0.1 imp gal/h | 665.8066387 in3/d |
| 1 imp gal/h | 6,658.066387 in3/d |
| 10 imp gal/h | 66,580.66387 in3/d |
| 60 imp gal/h | 399,483.9832 in3/d |
| 100 imp gal/h | 665,806.6387 in3/d |
| 1,000 imp gal/h | 6,658,066.387 in3/d |
Reverse conversion: Cubic inch per Days to Imperial gallon per Hours
1 in3/d × 0.0001501937562 = 0.0001501938 imp gal/h
1 cubic inch per days = 0.0001501938 imperial gallon per hours.
imperial gallon per hours = cubic inch per days × 0.000150193756246
For a page dedicated to this direction, see Cubic inch per Days to Imperial gallon per Hours.
Understanding the Imperial gallon per Hours (imp gal/h)
Volumetric flow rate.
Understanding the Cubic inch per Days (in3/d)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic inch per days are in 1 imperial gallon per hours?
1 imperial gallon per hours equals 6,658.066387 cubic inch per days, using the exact defined conversion factor rather than an estimate.
How do I convert imperial gallon per hours to cubic inch per days?
Multiply the imperial gallon per hours value by 6658.066387. The converter above does this instantly to whatever precision you set.
How do I convert cubic inch per days back to imperial gallon per hours?
Use the reverse factor: 1 cubic inch per days equals 0.0001501938 imperial gallon per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a imperial gallon per hours?
Imperial gallon per Hours (imp gal/h) is a unit of flow rate.
What is a cubic inch per days?
Cubic inch per Days (in3/d) is a unit of flow rate.
Is the imperial gallon per hours to cubic inch per days conversion exact?
Yes. Both imperial gallon per hours and cubic inch per days are defined by fixed standards rather than physical artifacts, so the factor of 6658.066387 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.