Volumetric flow rate.
Gallon per Seconds to Cubic foot per Days Converter — gal/s to ft3/d
Convert Gallon per Seconds (gal/s) to Cubic foot per Days (ft3/d) using the exact conversion factor (1 gallon per seconds = 11,550 cubic foot per days). See the formula, worked examples, and conversion table.
Gallon per Seconds to Cubic foot 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 0.003785411784 / 3.2774128e-7.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallon per Seconds to Cubic foot per Days
Gallon per Seconds and Cubic foot 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 foot per days = gallon per seconds × 11550
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per seconds equals 0.003785411784 base units, and 1 cubic foot per days equals 3.277413e-7 base units, so dividing one by the other gives the direct gallon per seconds-to-cubic foot per days factor of 11550.
Simple example
1 gal/s × 11550 = 11,550 ft3/d
1 gallon per seconds = 11,550 cubic foot per days.
Real-world example
60 gal/s × 11550 = 693,000 ft3/d
60 gallon per seconds = 693,000 cubic foot per days.
Conversion table
| Gallon per Seconds (gal/s) | Cubic foot per Days (ft3/d) |
|---|---|
| 0.1 gal/s | 1,155 ft3/d |
| 1 gal/s | 11,550 ft3/d |
| 10 gal/s | 115,500 ft3/d |
| 60 gal/s | 693,000 ft3/d |
| 100 gal/s | 1,155,000 ft3/d |
| 1,000 gal/s | 11,550,000 ft3/d |
Reverse conversion: Cubic foot per Days to Gallon per Seconds
1 ft3/d × 0.00008658008658 = 0.0000865801 gal/s
1 cubic foot per days = 0.0000865801 gallon per seconds.
gallon per seconds = cubic foot per days × 0.0000865800865801
For a page dedicated to this direction, see Cubic foot per Days to Gallon per Seconds.
Understanding the Gallon per Seconds (gal/s)
Volumetric flow rate.
Understanding the Cubic foot per Days (ft3/d)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic foot per days are in 1 gallon per seconds?
1 gallon per seconds equals 11,550 cubic foot per days, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per seconds to cubic foot per days?
Multiply the gallon per seconds value by 11550. The converter above does this instantly to whatever precision you set.
How do I convert cubic foot per days back to gallon per seconds?
Use the reverse factor: 1 cubic foot per days equals 0.0000865801 gallon per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per seconds?
Gallon per Seconds (gal/s) is a unit of flow rate.
What is a cubic foot per days?
Cubic foot per Days (ft3/d) is a unit of flow rate.
Is the gallon per seconds to cubic foot per days conversion exact?
Yes. Both gallon per seconds and cubic foot per days are defined by fixed standards rather than physical artifacts, so the factor of 11550 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.