Volumetric flow rate.
Liter per Seconds to Cup per Seconds Converter — L/s to cup/s
Convert Liter per Seconds (L/s) to Cup per Seconds (cup/s) using the exact conversion factor (1 liter per seconds = 4.226752838 cup per seconds). See the formula, worked examples, conversion table, and common uses.
Liter per Seconds to Cup 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 / 0.0002365882365.
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 Cup per Seconds
Liter per Seconds and Cup 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 most often used for municipal water supply and treatment plant flow rates.
Formula
cup per seconds = liter per seconds × 4.22675283773
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 cup per seconds equals 0.0002365882365 base units, so dividing one by the other gives the direct liter per seconds-to-cup per seconds factor of 4.22675283773.
Simple example
1 L/s × 4.226752838 = 4.226752838 cup/s
1 liter per seconds = 4.226752838 cup per seconds.
Real-world example
60 L/s × 4.226752838 = 253.6051703 cup/s
60 liter per seconds = 253.6051703 cup per seconds.
Conversion table
| Liter per Seconds (L/s) | Cup per Seconds (cup/s) |
|---|---|
| 0.1 L/s | 0.4226752838 cup/s |
| 1 L/s | 4.226752838 cup/s |
| 10 L/s | 42.26752838 cup/s |
| 60 L/s | 253.6051703 cup/s |
| 100 L/s | 422.6752838 cup/s |
| 1,000 L/s | 4,226.752838 cup/s |
Reverse conversion: Cup per Seconds to Liter per Seconds
4.226752838 cup/s × 0.2365882365 = 1 L/s
4.226752838 cup per seconds = 1 liter per seconds.
liter per seconds = cup per seconds × 0.2365882365
For a page dedicated to this direction, see Cup per Seconds to Liter per Seconds.
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 Cup per Seconds (cup/s)
Volumetric flow rate.
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 cup per seconds are in 1 liter per seconds?
1 liter per seconds equals 4.226752838 cup per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert liter per seconds to cup per seconds?
Multiply the liter per seconds value by 4.226752838. The converter above does this instantly to whatever precision you set.
How do I convert cup per seconds back to liter per seconds?
Use the reverse factor: 1 cup per seconds equals 0.2365882365 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 cup per seconds?
Cup per Seconds (cup/s) is a unit of flow rate.
Is the liter per seconds to cup per seconds conversion exact?
Yes. Both liter per seconds and cup per seconds are defined by fixed standards rather than physical artifacts, so the factor of 4.226752838 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