Volumetric flow rate.
Hectoliter per Days to Quarts per Millisecond Converter — hL/d to qt/ms
Convert Hectoliter per Days (hL/d) to Quart per Millisecond (qt/ms) using the exact conversion factor (1 hectoliter per days = 0.000001223 quart per millisecond). See the formula, worked examples, and conversion table.
Hectoliter per Days 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 1.15740741e-6 / 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 Days to Quarts per Millisecond
Hectoliter per Days 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 days × 0.00000122301876092
This factor comes from each unit's defined relationship to the category's base unit: 1 hectoliter per days equals 0.00000115740740741 base units, and 1 quart per millisecond equals 0.946352946 base units, so dividing one by the other gives the direct hectoliter per days-to-quart per millisecond factor of 0.00000122301876092.
Simple example
1 hL/d × 0.000001223018761 = 0.000001223 qt/ms
1 hectoliter per days = 0.000001223 quarts per millisecond.
Real-world example
60 hL/d × 0.000001223018761 = 0.0000733811 qt/ms
60 hectoliter per days = 0.0000733811 quarts per millisecond.
Conversion table
| Hectoliter per Days (hL/d) | Quart per Millisecond (qt/ms) |
|---|---|
| 0.1 hL/d | 1.223019e-7 qt/ms |
| 1 hL/d | 0.000001223 qt/ms |
| 10 hL/d | 0.0000122302 qt/ms |
| 60 hL/d | 0.0000733811 qt/ms |
| 100 hL/d | 0.0001223019 qt/ms |
| 1,000 hL/d | 0.0012230188 qt/ms |
Reverse conversion: Quart per Millisecond to Hectoliter per Days
0.000001223 qt/ms × 817648.9453 = 0.9999846602 hL/d
0.000001223 quarts per millisecond = 0.9999846602 hectoliter per days.
hectoliter per days = quarts per millisecond × 817648.945344
For a page dedicated to this direction, see Quart per Millisecond to Hectoliter per Days.
Understanding the Hectoliter per Days (hL/d)
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 days?
1 hectoliter per days equals 0.000001223 quarts per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert hectoliter per days to quart per millisecond?
Multiply the hectoliter per days value by 0.000001223018761. The converter above does this instantly to whatever precision you set.
How do I convert quart per millisecond back to hectoliter per days?
Use the reverse factor: 1 quart per millisecond equals 817,648.9453 hectoliter per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a hectoliter per days?
Hectoliter per Days (hL/d) 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 days to quart per millisecond conversion exact?
Yes. Both hectoliter per days and quart per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 0.000001223018761 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.