Volumetric flow rate.
Cup per Days to Cubic foot per Years Converter — cup/d to ft3/yr
Convert Cup per Days (cup/d) to Cubic foot per Years (ft3/yr) using the exact conversion factor (1 cup per days = 3.05161377 cubic foot per years). See the formula, worked examples, and conversion table.
Cup per Days to Cubic foot 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 2.73828977e-9 / 8.97325147e-10.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cup per Days to Cubic foot per Years
Cup per Days and Cubic foot 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
cubic foot per years = cup per days × 3.05161376953
This factor comes from each unit's defined relationship to the category's base unit: 1 cup per days equals 2.73829e-9 base units, and 1 cubic foot per years equals 8.973251e-10 base units, so dividing one by the other gives the direct cup per days-to-cubic foot per years factor of 3.05161376953.
Simple example
1 cup/d × 3.05161377 = 3.05161377 ft3/yr
1 cup per days = 3.05161377 cubic foot per years.
Real-world example
60 cup/d × 3.05161377 = 183.0968262 ft3/yr
60 cup per days = 183.0968262 cubic foot per years.
Conversion table
| Cup per Days (cup/d) | Cubic foot per Years (ft3/yr) |
|---|---|
| 0.1 cup/d | 0.305161377 ft3/yr |
| 1 cup/d | 3.05161377 ft3/yr |
| 10 cup/d | 30.5161377 ft3/yr |
| 60 cup/d | 183.0968262 ft3/yr |
| 100 cup/d | 305.161377 ft3/yr |
| 1,000 cup/d | 3,051.61377 ft3/yr |
Reverse conversion: Cubic foot per Years to Cup per Days
3.05161377 ft3/yr × 0.3276954672 = 1 cup/d
3.05161377 cubic foot per years = 1 cup per days.
cup per days = cubic foot per years × 0.327695467226
For a page dedicated to this direction, see Cubic foot per Years to Cup per Days.
Understanding the Cup per Days (cup/d)
Volumetric flow rate.
Understanding the Cubic foot per Years (ft3/yr)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic foot per years are in 1 cup per days?
1 cup per days equals 3.05161377 cubic foot per years, using the exact defined conversion factor rather than an estimate.
How do I convert cup per days to cubic foot per years?
Multiply the cup per days value by 3.05161377. The converter above does this instantly to whatever precision you set.
How do I convert cubic foot per years back to cup per days?
Use the reverse factor: 1 cubic foot per years equals 0.3276954672 cup per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a cup per days?
Cup per Days (cup/d) is a unit of flow rate.
What is a cubic foot per years?
Cubic foot per Years (ft3/yr) is a unit of flow rate.
Is the cup per days to cubic foot per years conversion exact?
Yes. Both cup per days and cubic foot per years are defined by fixed standards rather than physical artifacts, so the factor of 3.05161377 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.