Volumetric flow rate.
Cup per Years to Gallons per Millisecond Converter — cup/yr to gal/ms
Convert Cup per Years (cup/yr) to Gallon per Millisecond (gal/ms) using the exact conversion factor (1 cup per years = 1.980546e-12 gallon per millisecond). See the formula, worked examples, and conversion table.
Cup per Years to Gallons per Millisecond 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 7.49718276e-12 / 3.785411784.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cup per Years to Gallons per Millisecond
Cup per Years and Gallon per Millisecond 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
gallons per millisecond = cup per years × 1.980546e-12
This factor comes from each unit's defined relationship to the category's base unit: 1 cup per years equals 7.497183e-12 base units, and 1 gallon per millisecond equals 3.785411784 base units, so dividing one by the other gives the direct cup per years-to-gallon per millisecond factor of 1.980546e-12.
Simple example
1 cup/yr × 1.980546e-12 = 1.980546e-12 gal/ms
1 cup per years = 1.980546e-12 gallons per millisecond.
Real-world example
60 cup/yr × 1.980546e-12 = 1.188328e-10 gal/ms
60 cup per years = 1.188328e-10 gallons per millisecond.
Conversion table
| Cup per Years (cup/yr) | Gallon per Millisecond (gal/ms) |
|---|---|
| 0.1 cup/yr | 1.980546e-13 gal/ms |
| 1 cup/yr | 1.980546e-12 gal/ms |
| 10 cup/yr | 1.980546e-11 gal/ms |
| 60 cup/yr | 1.188328e-10 gal/ms |
| 100 cup/yr | 1.980546e-10 gal/ms |
| 1,000 cup/yr | 1.980546e-9 gal/ms |
Reverse conversion: Gallon per Millisecond to Cup per Years
1.980546e-12 gal/ms × 504911232000 = 0.9999999209 cup/yr
1.980546e-12 gallons per millisecond = 0.9999999209 cup per years.
cup per years = gallons per millisecond × 504911232000
For a page dedicated to this direction, see Gallon per Millisecond to Cup per Years.
Understanding the Cup per Years (cup/yr)
Volumetric flow rate.
Understanding the Gallon per Millisecond (gal/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallons per millisecond are in 1 cup per years?
1 cup per years equals 1.980546e-12 gallons per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert cup per years to gallon per millisecond?
Multiply the cup per years value by 1.980546e-12. The converter above does this instantly to whatever precision you set.
How do I convert gallon per millisecond back to cup per years?
Use the reverse factor: 1 gallon per millisecond equals 504,911,232,000 cup per years. You can also use the swap control in the converter above to flip the direction instantly.
What is a cup per years?
Cup per Years (cup/yr) is a unit of flow rate.
What is a gallon per millisecond?
Gallon per Millisecond (gal/ms) is a unit of flow rate.
Is the cup per years to gallon per millisecond conversion exact?
Yes. Both cup per years and gallon per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 1.980546e-12 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.