Volumetric flow rate.
Cubic inch per Days to Gallon per Hours Converter — in3/d to gal/h
Convert Cubic inch per Days (in3/d) to Gallon per Hours (gal/h) using the exact conversion factor (1 cubic inch per days = 0.0001803752 gallon per hours). See the formula, worked examples, and conversion table.
Cubic inch per Days to Gallon 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 1.89665093e-10 / 1.05150327e-6.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic inch per Days to Gallon per Hours
Cubic inch per Days and Gallon 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
gallon per hours = cubic inch per days × 0.000180375180375
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic inch per days equals 1.896651e-10 base units, and 1 gallon per hours equals 0.00000105150327333 base units, so dividing one by the other gives the direct cubic inch per days-to-gallon per hours factor of 0.000180375180375.
Simple example
1 in3/d × 0.0001803751804 = 0.0001803752 gal/h
1 cubic inch per days = 0.0001803752 gallon per hours.
Real-world example
60 in3/d × 0.0001803751804 = 0.0108225108 gal/h
60 cubic inch per days = 0.0108225108 gallon per hours.
Conversion table
| Cubic inch per Days (in3/d) | Gallon per Hours (gal/h) |
|---|---|
| 0.1 in3/d | 0.0000180375 gal/h |
| 1 in3/d | 0.0001803752 gal/h |
| 10 in3/d | 0.0018037518 gal/h |
| 60 in3/d | 0.0108225108 gal/h |
| 100 in3/d | 0.018037518 gal/h |
| 1,000 in3/d | 0.1803751804 gal/h |
Reverse conversion: Gallon per Hours to Cubic inch per Days
0.0001803752 gal/h × 5544 = 1.000000109 in3/d
0.0001803752 gallon per hours = 1.000000109 cubic inch per days.
cubic inch per days = gallon per hours × 5544
For a page dedicated to this direction, see Gallon per Hours to Cubic inch per Days.
Understanding the Cubic inch per Days (in3/d)
Volumetric flow rate.
Understanding the Gallon per Hours (gal/h)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallon per hours are in 1 cubic inch per days?
1 cubic inch per days equals 0.0001803752 gallon per hours, using the exact defined conversion factor rather than an estimate.
How do I convert cubic inch per days to gallon per hours?
Multiply the cubic inch per days value by 0.0001803751804. The converter above does this instantly to whatever precision you set.
How do I convert gallon per hours back to cubic inch per days?
Use the reverse factor: 1 gallon per hours equals 5,544 cubic inch per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic inch per days?
Cubic inch per Days (in3/d) is a unit of flow rate.
What is a gallon per hours?
Gallon per Hours (gal/h) is a unit of flow rate.
Is the cubic inch per days to gallon per hours conversion exact?
Yes. Both cubic inch per days and gallon per hours are defined by fixed standards rather than physical artifacts, so the factor of 0.0001803751804 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.