Volumetric flow rate.
Gallon per Years to Cup per Seconds Converter — gal/yr to cup/s
Convert Gallon per Years (gal/yr) to Cup per Seconds (cup/s) using the exact conversion factor (1 gallon per years = 5.070198e-7 cup per seconds). See the formula, worked examples, and conversion table.
Gallon per Years to Cup per Seconds 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 1.19954924e-10 / 0.0002365882365.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallon per Years to Cup per Seconds
Gallon per Years and Cup per Seconds 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
cup per seconds = gallon per years × 5.070198e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per years equals 1.199549e-10 base units, and 1 cup per seconds equals 0.0002365882365 base units, so dividing one by the other gives the direct gallon per years-to-cup per seconds factor of 5.070198e-7.
Simple example
1 gal/yr × 5.070198e-7 = 5.070198e-7 cup/s
1 gallon per years = 5.070198e-7 cup per seconds.
Real-world example
60 gal/yr × 5.070198e-7 = 0.0000304212 cup/s
60 gallon per years = 0.0000304212 cup per seconds.
Conversion table
| Gallon per Years (gal/yr) | Cup per Seconds (cup/s) |
|---|---|
| 0.1 gal/yr | 5.070198e-8 cup/s |
| 1 gal/yr | 5.070198e-7 cup/s |
| 10 gal/yr | 0.0000050702 cup/s |
| 60 gal/yr | 0.0000304212 cup/s |
| 100 gal/yr | 0.000050702 cup/s |
| 1,000 gal/yr | 0.0005070198 cup/s |
Reverse conversion: Cup per Seconds to Gallon per Years
5.070198e-7 cup/s × 1972309.5 = 0.9999999682 gal/yr
5.070198e-7 cup per seconds = 0.9999999682 gallon per years.
gallon per years = cup per seconds × 1972309.5
For a page dedicated to this direction, see Cup per Seconds to Gallon per Years.
Understanding the Gallon per Years (gal/yr)
Volumetric flow rate.
Understanding the Cup per Seconds (cup/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cup per seconds are in 1 gallon per years?
1 gallon per years equals 5.070198e-7 cup per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per years to cup per seconds?
Multiply the gallon per years value by 5.070198e-7. The converter above does this instantly to whatever precision you set.
How do I convert cup per seconds back to gallon per years?
Use the reverse factor: 1 cup per seconds equals 1,972,309.5 gallon per years. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per years?
Gallon per Years (gal/yr) is a unit of flow rate.
What is a cup per seconds?
Cup per Seconds (cup/s) is a unit of flow rate.
Is the gallon per years to cup per seconds conversion exact?
Yes. Both gallon per years and cup per seconds are defined by fixed standards rather than physical artifacts, so the factor of 5.070198e-7 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.