Volumetric flow rate.
Hectoliter per Days to Imperial gallon per Seconds Converter — hL/d to imp gal/s
Convert Hectoliter per Days (hL/d) to Imperial gallon per Seconds (imp gal/s) using the exact conversion factor (1 hectoliter per days = 0.000254594 imperial gallon per seconds). See the formula, worked examples, and conversion table.
Hectoliter per Days to Imperial 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 / 0.00454609.
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 Imperial gallon per Seconds
Hectoliter per Days and Imperial 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
imperial gallon per seconds = hectoliter per days × 0.000254594037383
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 imperial gallon per seconds equals 0.00454609 base units, so dividing one by the other gives the direct hectoliter per days-to-imperial gallon per seconds factor of 0.000254594037383.
Simple example
1 hL/d × 0.0002545940374 = 0.000254594 imp gal/s
1 hectoliter per days = 0.000254594 imperial gallon per seconds.
Real-world example
60 hL/d × 0.0002545940374 = 0.0152756422 imp gal/s
60 hectoliter per days = 0.0152756422 imperial gallon per seconds.
Conversion table
| Hectoliter per Days (hL/d) | Imperial gallon per Seconds (imp gal/s) |
|---|---|
| 0.1 hL/d | 0.0000254594 imp gal/s |
| 1 hL/d | 0.000254594 imp gal/s |
| 10 hL/d | 0.0025459404 imp gal/s |
| 60 hL/d | 0.0152756422 imp gal/s |
| 100 hL/d | 0.0254594037 imp gal/s |
| 1,000 hL/d | 0.2545940374 imp gal/s |
Reverse conversion: Imperial gallon per Seconds to Hectoliter per Days
0.000254594 imp gal/s × 3927.82176 = 0.9999998532 hL/d
0.000254594 imperial gallon per seconds = 0.9999998532 hectoliter per days.
hectoliter per days = imperial gallon per seconds × 3927.82176
For a page dedicated to this direction, see Imperial gallon per Seconds to Hectoliter per Days.
Understanding the Hectoliter per Days (hL/d)
Volumetric flow rate.
Understanding the Imperial gallon per Seconds (imp gal/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial gallon per seconds are in 1 hectoliter per days?
1 hectoliter per days equals 0.000254594 imperial gallon per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert hectoliter per days to imperial gallon per seconds?
Multiply the hectoliter per days value by 0.0002545940374. The converter above does this instantly to whatever precision you set.
How do I convert imperial gallon per seconds back to hectoliter per days?
Use the reverse factor: 1 imperial gallon per seconds equals 3,927.82176 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 imperial gallon per seconds?
Imperial gallon per Seconds (imp gal/s) is a unit of flow rate.
Is the hectoliter per days to imperial gallon per seconds conversion exact?
Yes. Both hectoliter per days and imperial gallon per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.0002545940374 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.