Volumetric flow rate.
Hectoliter per Days to Gallon per Seconds Converter — hL/d to gal/s
Convert Hectoliter per Days (hL/d) to Gallon per Seconds (gal/s) using the exact conversion factor (1 hectoliter per days = 0.0003057547 gallon per seconds). See the formula, worked examples, and conversion table.
Hectoliter per Days 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 1.15740741e-6 / 0.003785411784.
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 Gallon per Seconds
Hectoliter per Days 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 = hectoliter per days × 0.000305754690229
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 gallon per seconds equals 0.003785411784 base units, so dividing one by the other gives the direct hectoliter per days-to-gallon per seconds factor of 0.000305754690229.
Simple example
1 hL/d × 0.0003057546902 = 0.0003057547 gal/s
1 hectoliter per days = 0.0003057547 gallon per seconds.
Real-world example
60 hL/d × 0.0003057546902 = 0.0183452814 gal/s
60 hectoliter per days = 0.0183452814 gallon per seconds.
Conversion table
| Hectoliter per Days (hL/d) | Gallon per Seconds (gal/s) |
|---|---|
| 0.1 hL/d | 0.0000305755 gal/s |
| 1 hL/d | 0.0003057547 gal/s |
| 10 hL/d | 0.0030575469 gal/s |
| 60 hL/d | 0.0183452814 gal/s |
| 100 hL/d | 0.030575469 gal/s |
| 1,000 hL/d | 0.3057546902 gal/s |
Reverse conversion: Gallon per Seconds to Hectoliter per Days
0.0003057547 gal/s × 3270.595781 = 1.000000032 hL/d
0.0003057547 gallon per seconds = 1.000000032 hectoliter per days.
hectoliter per days = gallon per seconds × 3270.59578138
For a page dedicated to this direction, see Gallon per Seconds to Hectoliter per Days.
Understanding the Hectoliter per Days (hL/d)
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 days?
1 hectoliter per days equals 0.0003057547 gallon per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert hectoliter per days to gallon per seconds?
Multiply the hectoliter per days value by 0.0003057546902. The converter above does this instantly to whatever precision you set.
How do I convert gallon per seconds back to hectoliter per days?
Use the reverse factor: 1 gallon per seconds equals 3,270.595781 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 gallon per seconds?
Gallon per Seconds (gal/s) is a unit of flow rate.
Is the hectoliter per days to gallon per seconds conversion exact?
Yes. Both hectoliter per days and gallon per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.0003057546902 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.