Volumetric flow rate.
Gallons per Millisecond to Liter per Seconds Converter — gal/ms to L/s
Convert Gallon per Millisecond (gal/ms) to Liter per Seconds (L/s) using the exact conversion factor (1 gallon per millisecond = 3,785.411784 liter per seconds). See the formula, worked examples, conversion table, and common uses.
Gallons per Millisecond 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 3.785411784 / 0.001.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallons per Millisecond to Liter per Seconds
Gallon per Millisecond 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 = gallons per millisecond × 3785.411784
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per millisecond equals 3.785411784 base units, and 1 liter per seconds equals 0.001 base units, so dividing one by the other gives the direct gallon per millisecond-to-liter per seconds factor of 3785.411784.
Simple example
1 gal/ms × 3785.411784 = 3,785.411784 L/s
1 gallon per millisecond = 3,785.411784 liter per seconds.
Real-world example
60 gal/ms × 3785.411784 = 227,124.707 L/s
60 gallons per millisecond = 227,124.707 liter per seconds.
Conversion table
| Gallon per Millisecond (gal/ms) | Liter per Seconds (L/s) |
|---|---|
| 0.1 gal/ms | 378.5411784 L/s |
| 1 gal/ms | 3,785.411784 L/s |
| 10 gal/ms | 37,854.11784 L/s |
| 60 gal/ms | 227,124.707 L/s |
| 100 gal/ms | 378,541.1784 L/s |
| 1,000 gal/ms | 3,785,411.784 L/s |
Reverse conversion: Liter per Seconds to Gallon per Millisecond
1 L/s × 0.0002641720524 = 0.0002641721 gal/ms
1 liter per seconds = 0.0002641721 gallons per millisecond.
gallons per millisecond = liter per seconds × 0.000264172052358
For a page dedicated to this direction, see Liter per Seconds to Gallon per Millisecond.
Understanding the Gallon per Millisecond (gal/ms)
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 gallon per millisecond?
1 gallon per millisecond equals 3,785.411784 liter per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per millisecond to liter per seconds?
Multiply the gallon per millisecond value by 3785.411784. The converter above does this instantly to whatever precision you set.
How do I convert liter per seconds back to gallon per millisecond?
Use the reverse factor: 1 liter per seconds equals 0.0002641721 gallons per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per millisecond?
Gallon per Millisecond (gal/ms) 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 gallon per millisecond to liter per seconds conversion exact?
Yes. Both gallon per millisecond and liter per seconds are defined by fixed standards rather than physical artifacts, so the factor of 3785.411784 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.