Volumetric flow rate.
Hectoliter per Years to Quarts per Millisecond Converter — hL/yr to qt/ms
Convert Hectoliter per Years (hL/yr) to Quart per Millisecond (qt/ms) using the exact conversion factor (1 hectoliter per years = 3.348512e-9 quart per millisecond). See the formula, worked examples, and conversion table.
Hectoliter per Years to Quarts 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 3.16887385e-9 / 0.946352946.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Hectoliter per Years to Quarts per Millisecond
Hectoliter per Years and Quart 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
quarts per millisecond = hectoliter per years × 3.348512e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 hectoliter per years equals 3.168874e-9 base units, and 1 quart per millisecond equals 0.946352946 base units, so dividing one by the other gives the direct hectoliter per years-to-quart per millisecond factor of 3.348512e-9.
Simple example
1 hL/yr × 3.348512e-9 = 3.348512e-9 qt/ms
1 hectoliter per years = 3.348512e-9 quarts per millisecond.
Real-world example
60 hL/yr × 3.348512e-9 = 2.009107e-7 qt/ms
60 hectoliter per years = 2.009107e-7 quarts per millisecond.
Conversion table
| Hectoliter per Years (hL/yr) | Quart per Millisecond (qt/ms) |
|---|---|
| 0.1 hL/yr | 3.348512e-10 qt/ms |
| 1 hL/yr | 3.348512e-9 qt/ms |
| 10 hL/yr | 3.348512e-8 qt/ms |
| 60 hL/yr | 2.009107e-7 qt/ms |
| 100 hL/yr | 3.348512e-7 qt/ms |
| 1,000 hL/yr | 0.0000033485 qt/ms |
Reverse conversion: Quart per Millisecond to Hectoliter per Years
3.348512e-9 qt/ms × 298640144.9 = 1.000000109 hL/yr
3.348512e-9 quarts per millisecond = 1.000000109 hectoliter per years.
hectoliter per years = quarts per millisecond × 298640144.92
For a page dedicated to this direction, see Quart per Millisecond to Hectoliter per Years.
Understanding the Hectoliter per Years (hL/yr)
Volumetric flow rate.
Understanding the Quart per Millisecond (qt/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many quarts per millisecond are in 1 hectoliter per years?
1 hectoliter per years equals 3.348512e-9 quarts per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert hectoliter per years to quart per millisecond?
Multiply the hectoliter per years value by 3.348512e-9. The converter above does this instantly to whatever precision you set.
How do I convert quart per millisecond back to hectoliter per years?
Use the reverse factor: 1 quart per millisecond equals 298,640,144.9 hectoliter per years. You can also use the swap control in the converter above to flip the direction instantly.
What is a hectoliter per years?
Hectoliter per Years (hL/yr) is a unit of flow rate.
What is a quart per millisecond?
Quart per Millisecond (qt/ms) is a unit of flow rate.
Is the hectoliter per years to quart per millisecond conversion exact?
Yes. Both hectoliter per years and quart per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 3.348512e-9 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.