Volumetric flow rate.
Hectoliters per Millisecond to Gallon per Seconds Converter — hL/ms to gal/s
Convert Hectoliter per Millisecond (hL/ms) to Gallon per Seconds (gal/s) using the exact conversion factor (1 hectoliter per millisecond = 26,417.20524 gallon per seconds). See the formula, worked examples, and conversion table.
Hectoliters per Millisecond to Gallon per Seconds 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 100 / 0.003785411784.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Hectoliters per Millisecond to Gallon per Seconds
Hectoliter per Millisecond and Gallon per Seconds 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
gallon per seconds = hectoliters per millisecond × 26417.2052358
This factor comes from each unit's defined relationship to the category's base unit: 1 hectoliter per millisecond equals 100 base units, and 1 gallon per seconds equals 0.003785411784 base units, so dividing one by the other gives the direct hectoliter per millisecond-to-gallon per seconds factor of 26417.2052358.
Simple example
1 hL/ms × 26417.20524 = 26,417.20524 gal/s
1 hectoliter per millisecond = 26,417.20524 gallon per seconds.
Real-world example
60 hL/ms × 26417.20524 = 1,585,032.314 gal/s
60 hectoliters per millisecond = 1,585,032.314 gallon per seconds.
Conversion table
| Hectoliter per Millisecond (hL/ms) | Gallon per Seconds (gal/s) |
|---|---|
| 0.1 hL/ms | 2,641.720524 gal/s |
| 1 hL/ms | 26,417.20524 gal/s |
| 10 hL/ms | 264,172.0524 gal/s |
| 60 hL/ms | 1,585,032.314 gal/s |
| 100 hL/ms | 2,641,720.524 gal/s |
| 1,000 hL/ms | 26,417,205.24 gal/s |
Reverse conversion: Gallon per Seconds to Hectoliter per Millisecond
1 gal/s × 0.00003785411784 = 0.0000378541 hL/ms
1 gallon per seconds = 0.0000378541 hectoliters per millisecond.
hectoliters per millisecond = gallon per seconds × 0.00003785411784
For a page dedicated to this direction, see Gallon per Seconds to Hectoliter per Millisecond.
Understanding the Hectoliter per Millisecond (hL/ms)
Volumetric flow rate.
Understanding the Gallon per Seconds (gal/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallon per seconds are in 1 hectoliter per millisecond?
1 hectoliter per millisecond equals 26,417.20524 gallon per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert hectoliter per millisecond to gallon per seconds?
Multiply the hectoliter per millisecond value by 26417.20524. The converter above does this instantly to whatever precision you set.
How do I convert gallon per seconds back to hectoliter per millisecond?
Use the reverse factor: 1 gallon per seconds equals 0.0000378541 hectoliters per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a hectoliter per millisecond?
Hectoliter per Millisecond (hL/ms) is a unit of flow rate.
What is a gallon per seconds?
Gallon per Seconds (gal/s) is a unit of flow rate.
Is the hectoliter per millisecond to gallon per seconds conversion exact?
Yes. Both hectoliter per millisecond and gallon per seconds are defined by fixed standards rather than physical artifacts, so the factor of 26417.20524 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.