Volumetric flow rate.
Cubic inch per Seconds to Gallon per Days Converter — in3/s to gal/d
Convert Cubic inch per Seconds (in3/s) to Gallon per Days (gal/d) using the exact conversion factor (1 cubic inch per seconds = 374.025974 gallon per days). See the formula, worked examples, and conversion table.
Cubic inch per Seconds 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 1.6387064e-5 / 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 inch per Seconds to Gallon per Days
Cubic inch per Seconds 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 inch per seconds × 374.025974026
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic inch per seconds equals 0.000016387064 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 seconds-to-gallon per days factor of 374.025974026.
Simple example
1 in3/s × 374.025974 = 374.025974 gal/d
1 cubic inch per seconds = 374.025974 gallon per days.
Real-world example
60 in3/s × 374.025974 = 22,441.55844 gal/d
60 cubic inch per seconds = 22,441.55844 gallon per days.
Conversion table
| Cubic inch per Seconds (in3/s) | Gallon per Days (gal/d) |
|---|---|
| 0.1 in3/s | 37.4025974 gal/d |
| 1 in3/s | 374.025974 gal/d |
| 10 in3/s | 3,740.25974 gal/d |
| 60 in3/s | 22,441.55844 gal/d |
| 100 in3/s | 37,402.5974 gal/d |
| 1,000 in3/s | 374,025.974 gal/d |
Reverse conversion: Gallon per Days to Cubic inch per Seconds
374.025974 gal/d × 0.002673611111 = 0.9999999999 in3/s
374.025974 gallon per days = 0.9999999999 cubic inch per seconds.
cubic inch per seconds = gallon per days × 0.00267361111111
For a page dedicated to this direction, see Gallon per Days to Cubic inch per Seconds.
Understanding the Cubic inch per Seconds (in3/s)
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 seconds?
1 cubic inch per seconds equals 374.025974 gallon per days, using the exact defined conversion factor rather than an estimate.
How do I convert cubic inch per seconds to gallon per days?
Multiply the cubic inch per seconds value by 374.025974. The converter above does this instantly to whatever precision you set.
How do I convert gallon per days back to cubic inch per seconds?
Use the reverse factor: 1 gallon per days equals 0.0026736111 cubic inch per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic inch per seconds?
Cubic inch per Seconds (in3/s) 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 seconds to gallon per days conversion exact?
Yes. Both cubic inch per seconds and gallon per days are defined by fixed standards rather than physical artifacts, so the factor of 374.025974 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.