Volumetric flow rate.
Cubic foot per Days to Gallon per Days Converter — ft3/d to gal/d
Convert Cubic foot per Days (ft3/d) to Gallon per Days (gal/d) using the exact conversion factor (1 cubic foot per days = 7.480519481 gallon per days). See the formula, worked examples, and conversion table.
Cubic foot per Days 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 3.2774128e-7 / 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 foot per Days to Gallon per Days
Cubic foot per Days 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 foot per days × 7.48051948052
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic foot per days equals 3.277413e-7 base units, and 1 gallon per days equals 4.381264e-8 base units, so dividing one by the other gives the direct cubic foot per days-to-gallon per days factor of 7.48051948052.
Simple example
1 ft3/d × 7.480519481 = 7.480519481 gal/d
1 cubic foot per days = 7.480519481 gallon per days.
Real-world example
60 ft3/d × 7.480519481 = 448.8311688 gal/d
60 cubic foot per days = 448.8311688 gallon per days.
Conversion table
| Cubic foot per Days (ft3/d) | Gallon per Days (gal/d) |
|---|---|
| 0.1 ft3/d | 0.7480519481 gal/d |
| 1 ft3/d | 7.480519481 gal/d |
| 10 ft3/d | 74.80519481 gal/d |
| 60 ft3/d | 448.8311688 gal/d |
| 100 ft3/d | 748.0519481 gal/d |
| 1,000 ft3/d | 7,480.519481 gal/d |
Reverse conversion: Gallon per Days to Cubic foot per Days
7.480519481 gal/d × 0.1336805556 = 1 ft3/d
7.480519481 gallon per days = 1 cubic foot per days.
cubic foot per days = gallon per days × 0.133680555556
For a page dedicated to this direction, see Gallon per Days to Cubic foot per Days.
Understanding the Cubic foot per Days (ft3/d)
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 foot per days?
1 cubic foot per days equals 7.480519481 gallon per days, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per days to gallon per days?
Multiply the cubic foot per days value by 7.480519481. The converter above does this instantly to whatever precision you set.
How do I convert gallon per days back to cubic foot per days?
Use the reverse factor: 1 gallon per days equals 0.1336805556 cubic foot per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic foot per days?
Cubic foot per Days (ft3/d) 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 foot per days to gallon per days conversion exact?
Yes. Both cubic foot per days and gallon per days are defined by fixed standards rather than physical artifacts, so the factor of 7.480519481 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.