Volumetric flow rate.
Imperial gallon per Hours to Liter per Seconds Converter — imp gal/h to L/s
Convert Imperial gallon per Hours (imp gal/h) to Liter per Seconds (L/s) using the exact conversion factor (1 imperial gallon per hours = 0.0012628028 liter per seconds). See the formula, worked examples, conversion table, and common uses.
Imperial gallon per Hours to Liter 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 1.26280278e-6 / 0.001.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Imperial gallon per Hours to Liter per Seconds
Imperial gallon per Hours and Liter 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
liter per seconds = imperial gallon per hours × 0.00126280277778
This factor comes from each unit's defined relationship to the category's base unit: 1 imperial gallon per hours equals 0.00000126280277778 base units, and 1 liter per seconds equals 0.001 base units, so dividing one by the other gives the direct imperial gallon per hours-to-liter per seconds factor of 0.00126280277778.
Simple example
1 imp gal/h × 0.001262802778 = 0.0012628028 L/s
1 imperial gallon per hours = 0.0012628028 liter per seconds.
Real-world example
60 imp gal/h × 0.001262802778 = 0.0757681667 L/s
60 imperial gallon per hours = 0.0757681667 liter per seconds.
Conversion table
| Imperial gallon per Hours (imp gal/h) | Liter per Seconds (L/s) |
|---|---|
| 0.1 imp gal/h | 0.0001262803 L/s |
| 1 imp gal/h | 0.0012628028 L/s |
| 10 imp gal/h | 0.0126280278 L/s |
| 60 imp gal/h | 0.0757681667 L/s |
| 100 imp gal/h | 0.1262802778 L/s |
| 1,000 imp gal/h | 1.262802778 L/s |
Reverse conversion: Liter per Seconds to Imperial gallon per Hours
0.0012628028 L/s × 791.8892939 = 1.000000018 imp gal/h
0.0012628028 liter per seconds = 1.000000018 imperial gallon per hours.
imperial gallon per hours = liter per seconds × 791.889293877
For a page dedicated to this direction, see Liter per Seconds to Imperial gallon per Hours.
Understanding the Imperial gallon per Hours (imp gal/h)
Volumetric flow rate.
Understanding the Liter per Seconds
Liter per Seconds (L/s) measures volumetric flow rate. One liter of volume passing a point every second — used for larger flows than liter-per-minute conveniently describes. It is classified as a metric derived flow-rate unit.
Where it's used: Common in municipal water-utility and industrial flow specifications internationally
L/s vs. L/min. Both measure the same quantity at different time scales; 1 L/s equals 60 L/min. L/s is typically used for larger, continuous industrial or utility flows, while L/min suits smaller household-scale flows.
Uses of the Liter per Seconds today
- Municipal water supply and treatment plant flow rates
- Industrial process flow specifications
- Stream and river discharge measurement at moderate scales
Liter per Seconds — sources
- BIPM SI Brochure — Litre and second as accepted units used together to express flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many liter per seconds are in 1 imperial gallon per hours?
1 imperial gallon per hours equals 0.0012628028 liter per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert imperial gallon per hours to liter per seconds?
Multiply the imperial gallon per hours value by 0.001262802778. The converter above does this instantly to whatever precision you set.
How do I convert liter per seconds back to imperial gallon per hours?
Use the reverse factor: 1 liter per seconds equals 791.8892939 imperial gallon per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a imperial gallon per hours?
Imperial gallon per Hours (imp gal/h) is a unit of flow rate.
What is a liter per seconds?
Liter per Seconds (L/s) measures volumetric flow rate. One liter of volume passing a point every second — used for larger flows than liter-per-minute conveniently describes. It is classified as a metric derived flow-rate unit.
Is the imperial gallon per hours to liter per seconds conversion exact?
Yes. Both imperial gallon per hours and liter per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.001262802778 used above is exact to as many digits as you choose to display.
What is the difference between l/s vs. l/min?
Both measure the same quantity at different time scales; 1 L/s equals 60 L/min. L/s is typically used for larger, continuous industrial or utility flows, while L/min suits smaller household-scale flows.