Volumetric flow rate.
Cubic foot per Weeks to Gallon per Years Converter — ft3/wk to gal/yr
Convert Cubic foot per Weeks (ft3/wk) to Gallon per Years (gal/yr) using the exact conversion factor (1 cubic foot per weeks = 390.3148052 gallon per years). See the formula, worked examples, and conversion table.
Cubic foot per Weeks to Gallon per Years 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 4.68201829e-8 / 1.19954924e-10.
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 Weeks to Gallon per Years
Cubic foot per Weeks and Gallon per Years 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 years = cubic foot per weeks × 390.314805195
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic foot per weeks equals 4.682018e-8 base units, and 1 gallon per years equals 1.199549e-10 base units, so dividing one by the other gives the direct cubic foot per weeks-to-gallon per years factor of 390.314805195.
Simple example
1 ft3/wk × 390.3148052 = 390.3148052 gal/yr
1 cubic foot per weeks = 390.3148052 gallon per years.
Real-world example
60 ft3/wk × 390.3148052 = 23,418.88831 gal/yr
60 cubic foot per weeks = 23,418.88831 gallon per years.
Conversion table
| Cubic foot per Weeks (ft3/wk) | Gallon per Years (gal/yr) |
|---|---|
| 0.1 ft3/wk | 39.03148052 gal/yr |
| 1 ft3/wk | 390.3148052 gal/yr |
| 10 ft3/wk | 3,903.148052 gal/yr |
| 60 ft3/wk | 23,418.88831 gal/yr |
| 100 ft3/wk | 39,031.48052 gal/yr |
| 1,000 ft3/wk | 390,314.8052 gal/yr |
Reverse conversion: Gallon per Years to Cubic foot per Weeks
390.3148052 gal/yr × 0.002562034508 = 1 ft3/wk
390.3148052 gallon per years = 1 cubic foot per weeks.
cubic foot per weeks = gallon per years × 0.00256203450828
For a page dedicated to this direction, see Gallon per Years to Cubic foot per Weeks.
Understanding the Cubic foot per Weeks (ft3/wk)
Volumetric flow rate.
Understanding the Gallon per Years (gal/yr)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallon per years are in 1 cubic foot per weeks?
1 cubic foot per weeks equals 390.3148052 gallon per years, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per weeks to gallon per years?
Multiply the cubic foot per weeks value by 390.3148052. The converter above does this instantly to whatever precision you set.
How do I convert gallon per years back to cubic foot per weeks?
Use the reverse factor: 1 gallon per years equals 0.0025620345 cubic foot per weeks. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic foot per weeks?
Cubic foot per Weeks (ft3/wk) is a unit of flow rate.
What is a gallon per years?
Gallon per Years (gal/yr) is a unit of flow rate.
Is the cubic foot per weeks to gallon per years conversion exact?
Yes. Both cubic foot per weeks and gallon per years are defined by fixed standards rather than physical artifacts, so the factor of 390.3148052 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.