Volumetric flow rate.
Liter per Seconds to Cubic foot per Seconds Converter — L/s to ft3/s
Convert Liter per Seconds (L/s) to Cubic foot per Seconds (ft3/s) using the exact conversion factor (1 liter per seconds = 0.0353146667 cubic foot per seconds). See the formula, worked examples, conversion table, unit comparison, and common uses.
Liter per Seconds to Cubic foot 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 0.001 / 0.02831684659.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Liter per Seconds to Cubic foot per Seconds
Liter per Seconds and Cubic foot 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. Liter per Seconds is typically associated with common in municipal water-utility and industrial flow specifications internationally, while Cubic foot per Seconds is typically associated with united States.
Formula
cubic foot per seconds = liter per seconds × 0.0353146667215
This factor comes from each unit's defined relationship to the category's base unit: 1 liter per seconds equals 0.001 base units, and 1 cubic foot per seconds equals 0.028316846592 base units, so dividing one by the other gives the direct liter per seconds-to-cubic foot per seconds factor of 0.0353146667215.
Simple example
1 L/s × 0.03531466672 = 0.0353146667 ft3/s
1 liter per seconds = 0.0353146667 cubic foot per seconds.
Real-world example
60 L/s × 0.03531466672 = 2.118880003 ft3/s
60 liter per seconds = 2.118880003 cubic foot per seconds.
Conversion table
| Liter per Seconds (L/s) | Cubic foot per Seconds (ft3/s) |
|---|---|
| 0.1 L/s | 0.0035314667 ft3/s |
| 1 L/s | 0.0353146667 ft3/s |
| 10 L/s | 0.3531466672 ft3/s |
| 60 L/s | 2.118880003 ft3/s |
| 100 L/s | 3.531466672 ft3/s |
| 1,000 L/s | 35.31466672 ft3/s |
Reverse conversion: Cubic foot per Seconds to Liter per Seconds
0.0353146667 ft3/s × 28.31684659 = 0.9999999994 L/s
0.0353146667 cubic foot per seconds = 0.9999999994 liter per seconds.
liter per seconds = cubic foot per seconds × 28.316846592
For a page dedicated to this direction, see Cubic foot per Seconds to Liter per Seconds.
Liter per Seconds vs. Cubic foot per Seconds
| Aspect | Liter per Seconds | Cubic foot per Seconds |
|---|---|---|
| Family | metric derived flow-rate unit | US customary flow-rate unit |
| Typical use | Municipal water supply and treatment plant flow rates | The standard unit used by the US Geological Survey for reporting river and stream discharge at gauging stations |
| Where it's used | Common in municipal water-utility and industrial flow specifications internationally | United States |
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
Understanding the Cubic foot per Seconds
Cubic foot per Seconds (ft3/s) measures volumetric flow rate. One cubic foot of volume passing a point every second. It is classified as a US customary flow-rate unit.
Where it's used: United States
Uses of the Cubic foot per Seconds today
- The standard unit used by the US Geological Survey for reporting river and stream discharge at gauging stations
Liter per Seconds — sources
- BIPM SI Brochure — Litre and second as accepted units used together to express flow rate.
Cubic foot per Seconds — sources
- USGS Water Science School — Cubic feet per second (cfs) is the standard unit USGS uses to report streamflow.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic foot per seconds are in 1 liter per seconds?
1 liter per seconds equals 0.0353146667 cubic foot per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert liter per seconds to cubic foot per seconds?
Multiply the liter per seconds value by 0.03531466672. The converter above does this instantly to whatever precision you set.
How do I convert cubic foot per seconds back to liter per seconds?
Use the reverse factor: 1 cubic foot per seconds equals 28.31684659 liter per seconds. You can also use the swap control in the converter above to flip the direction instantly.
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.
What is a cubic foot per seconds?
Cubic foot per Seconds (ft3/s) measures volumetric flow rate. One cubic foot of volume passing a point every second. It is classified as a US customary flow-rate unit.
Is the liter per seconds to cubic foot per seconds conversion exact?
Yes. Both liter per seconds and cubic foot per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.03531466672 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.
Where is the liter per seconds still used today?
Common in municipal water-utility and industrial flow specifications internationally