Volumetric flow rate.
Gallon per Years to Liters per Millisecond Converter — gal/yr to L/ms
Convert Gallon per Years (gal/yr) to Liter per Millisecond (L/ms) using the exact conversion factor (1 gallon per years = 1.199549e-10 liter per millisecond). See the formula, worked examples, and conversion table.
Gallon per Years to Liters 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 1.19954924e-10 / 1.
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 Liters per Millisecond
Gallon per Years and Liter 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
liters per millisecond = gallon per years × 1.199549e-10
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 liter per millisecond equals 1 base unit, so dividing one by the other gives the direct gallon per years-to-liter per millisecond factor of 1.199549e-10.
Simple example
1 gal/yr × 1.199549e-10 = 1.199549e-10 L/ms
1 gallon per years = 1.199549e-10 liters per millisecond.
Real-world example
60 gal/yr × 1.199549e-10 = 7.197295e-9 L/ms
60 gallon per years = 7.197295e-9 liters per millisecond.
Conversion table
| Gallon per Years (gal/yr) | Liter per Millisecond (L/ms) |
|---|---|
| 0.1 gal/yr | 1.199549e-11 L/ms |
| 1 gal/yr | 1.199549e-10 L/ms |
| 10 gal/yr | 1.199549e-9 L/ms |
| 60 gal/yr | 7.197295e-9 L/ms |
| 100 gal/yr | 1.199549e-8 L/ms |
| 1,000 gal/yr | 1.199549e-7 L/ms |
Reverse conversion: Liter per Millisecond to Gallon per Years
1.199549e-10 L/ms × 8336464776 = 0.9999997986 gal/yr
1.199549e-10 liters per millisecond = 0.9999997986 gallon per years.
gallon per years = liters per millisecond × 8336464776.01
For a page dedicated to this direction, see Liter per Millisecond to Gallon per Years.
Understanding the Gallon per Years (gal/yr)
Volumetric flow rate.
Understanding the Liter per Millisecond (L/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many liters per millisecond are in 1 gallon per years?
1 gallon per years equals 1.199549e-10 liters per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per years to liter per millisecond?
Multiply the gallon per years value by 1.199549e-10. The converter above does this instantly to whatever precision you set.
How do I convert liter per millisecond back to gallon per years?
Use the reverse factor: 1 liter per millisecond equals 8,336,464,776 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 liter per millisecond?
Liter per Millisecond (L/ms) is a unit of flow rate.
Is the gallon per years to liter per millisecond conversion exact?
Yes. Both gallon per years and liter per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 1.199549e-10 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.