Volumetric flow rate.
Hectoliter per Hours to Milliliters per Millisecond Converter — hL/h to mL/ms
Convert Hectoliter per Hours (hL/h) to Milliliter per Millisecond (mL/ms) using the exact conversion factor (1 hectoliter per hours = 0.0277777778 milliliter per millisecond). See the formula, worked examples, and conversion table.
Hectoliter per Hours to Milliliters 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 2.77777778e-5 / 0.001.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Hectoliter per Hours to Milliliters per Millisecond
Hectoliter per Hours and Milliliter 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
milliliters per millisecond = hectoliter per hours × 0.0277777777778
This factor comes from each unit's defined relationship to the category's base unit: 1 hectoliter per hours equals 0.0000277777777778 base units, and 1 milliliter per millisecond equals 0.001 base units, so dividing one by the other gives the direct hectoliter per hours-to-milliliter per millisecond factor of 0.0277777777778.
Simple example
1 hL/h × 0.02777777778 = 0.0277777778 mL/ms
1 hectoliter per hours = 0.0277777778 milliliters per millisecond.
Real-world example
60 hL/h × 0.02777777778 = 1.666666667 mL/ms
60 hectoliter per hours = 1.666666667 milliliters per millisecond.
Conversion table
| Hectoliter per Hours (hL/h) | Milliliter per Millisecond (mL/ms) |
|---|---|
| 0.1 hL/h | 0.0027777778 mL/ms |
| 1 hL/h | 0.0277777778 mL/ms |
| 10 hL/h | 0.2777777778 mL/ms |
| 60 hL/h | 1.666666667 mL/ms |
| 100 hL/h | 2.777777778 mL/ms |
| 1,000 hL/h | 27.77777778 mL/ms |
Reverse conversion: Milliliter per Millisecond to Hectoliter per Hours
0.0277777778 mL/ms × 36 = 1.000000001 hL/h
0.0277777778 milliliters per millisecond = 1.000000001 hectoliter per hours.
hectoliter per hours = milliliters per millisecond × 36
For a page dedicated to this direction, see Milliliter per Millisecond to Hectoliter per Hours.
Understanding the Hectoliter per Hours (hL/h)
Volumetric flow rate.
Understanding the Milliliter per Millisecond (mL/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milliliters per millisecond are in 1 hectoliter per hours?
1 hectoliter per hours equals 0.0277777778 milliliters per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert hectoliter per hours to milliliter per millisecond?
Multiply the hectoliter per hours value by 0.02777777778. The converter above does this instantly to whatever precision you set.
How do I convert milliliter per millisecond back to hectoliter per hours?
Use the reverse factor: 1 milliliter per millisecond equals 36 hectoliter per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a hectoliter per hours?
Hectoliter per Hours (hL/h) is a unit of flow rate.
What is a milliliter per millisecond?
Milliliter per Millisecond (mL/ms) is a unit of flow rate.
Is the hectoliter per hours to milliliter per millisecond conversion exact?
Yes. Both hectoliter per hours and milliliter per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 0.02777777778 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.