Volumetric flow rate.
Quart per Hours to Hectoliters per Millisecond Converter — qt/h to hL/ms
Convert Quart per Hours (qt/h) to Hectoliter per Millisecond (hL/ms) using the exact conversion factor (1 quart per hours = 2.628758e-9 hectoliter per millisecond). See the formula, worked examples, and conversion table.
Quart per Hours to Hectoliters 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 2.62875818e-7 / 100.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Quart per Hours to Hectoliters per Millisecond
Quart per Hours and Hectoliter 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
hectoliters per millisecond = quart per hours × 2.628758e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 quart per hours equals 2.628758e-7 base units, and 1 hectoliter per millisecond equals 100 base units, so dividing one by the other gives the direct quart per hours-to-hectoliter per millisecond factor of 2.628758e-9.
Simple example
1 qt/h × 2.628758e-9 = 2.628758e-9 hL/ms
1 quart per hours = 2.628758e-9 hectoliters per millisecond.
Real-world example
60 qt/h × 2.628758e-9 = 1.577255e-7 hL/ms
60 quart per hours = 1.577255e-7 hectoliters per millisecond.
Conversion table
| Quart per Hours (qt/h) | Hectoliter per Millisecond (hL/ms) |
|---|---|
| 0.1 qt/h | 2.628758e-10 hL/ms |
| 1 qt/h | 2.628758e-9 hL/ms |
| 10 qt/h | 2.628758e-8 hL/ms |
| 60 qt/h | 1.577255e-7 hL/ms |
| 100 qt/h | 2.628758e-7 hL/ms |
| 1,000 qt/h | 0.0000026288 hL/ms |
Reverse conversion: Hectoliter per Millisecond to Quart per Hours
2.628758e-9 hL/ms × 380407755.4 = 0.9999999303 qt/h
2.628758e-9 hectoliters per millisecond = 0.9999999303 quart per hours.
quart per hours = hectoliters per millisecond × 380407755.396
For a page dedicated to this direction, see Hectoliter per Millisecond to Quart per Hours.
Understanding the Quart per Hours (qt/h)
Volumetric flow rate.
Understanding the Hectoliter per Millisecond (hL/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many hectoliters per millisecond are in 1 quart per hours?
1 quart per hours equals 2.628758e-9 hectoliters per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert quart per hours to hectoliter per millisecond?
Multiply the quart per hours value by 2.628758e-9. The converter above does this instantly to whatever precision you set.
How do I convert hectoliter per millisecond back to quart per hours?
Use the reverse factor: 1 hectoliter per millisecond equals 380,407,755.4 quart per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a quart per hours?
Quart per Hours (qt/h) is a unit of flow rate.
What is a hectoliter per millisecond?
Hectoliter per Millisecond (hL/ms) is a unit of flow rate.
Is the quart per hours to hectoliter per millisecond conversion exact?
Yes. Both quart per hours and hectoliter per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 2.628758e-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.