Litres per Second to Cubic Metres per Day (L/s to m3/day)
1 litre per second (L/s) = 86.4 cubic metres per day (m³/day). 1 m³/day = 0.01157407407 L/s. Example: 15 L/s = 15 × 86.4 = 1296 m³/day.
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1 L/s = 86.4 m³/day
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk litre per second to cubic metre per day converter to paste a column from Excel.
How to Convert Litre per Second to Cubic Metre per Day
- 1 L/s = 86.4 m³/day
- 1 m³/day = 0.01157407407 L/s
- Example: convert 15 L/s to m³/day: 15 L/s = 15 × 86.4 m³/day = 1296 m³/day
Formula
m³/day = L/s × 86.4
Derivation from SI units:
- 1 L/s = 10⁻³ m³/s.
- 1 m³/day = 1/86,400 m³/s; one kilolitre per day (KLD).
- 1 L/s = 0.001 m³/s ÷ 0.00001157407407407 m³/s per m³/day = 86.4 m³/day
Both units are defined exactly, so the factor is exact. Litre per Second definition: litre per second; Cubic Metre per Day definition: cubic metre per day.
Worked examples
- A reading of 5 L/s converts to 432 m³/day.
5 L/s × 86.4 = 432 m³/day - A value of 50 L/s is 4320 m³/day.
50 L/s × 86.4 = 4320 m³/day
Litre per Second to Cubic Metre per Day conversion table
| Litres per Second (L/s) | Cubic Metres per Day (m³/day) |
|---|---|
| 0.5 L/s | 43.2 m³/day |
| 1 L/s | 86.4 m³/day |
| 2 L/s | 172.8 m³/day |
| 5 L/s | 432 m³/day |
| 10 L/s | 864 m³/day |
| 25 L/s | 2160 m³/day |
| 50 L/s | 4320 m³/day |
| 100 L/s | 8640 m³/day |
| 500 L/s | 43200 m³/day |
| 1000 L/s | 86400 m³/day |
Where it's used
Litres per Second are used for tube-well and pump discharge, while cubic metres per day appear in STP and ETP capacity (KLD). Both measure volumetric discharge of rivers, canals and water supply, so the conversion is a fixed factor.
Litre per Second to other water discharge units
| Conversion | 1 L/s equals |
|---|---|
| litre per second to cubic metre per day | 86.4 m³/day |
| litre per second to cumec | 0.001 m³/s |
| litre per second to cusec | 0.03531466672 ft³/s |
| litre per second to MLD | 0.0864 MLD |
| litre per second to MGD | 0.02282446532 MGD |
| litre per second to MGD (imp) | 0.01900534305 MGD (imp) |
| litre per second to acre-foot per day | 0.07004561994 acre-ft/day |
Frequently asked questions
How many cubic metres per day are in 1 litre per second?
1 L/s = 86.4 m³/day.
How do I convert litres per second to cubic metres per day?
Multiply the value in L/s by 86.4. For example, 15 L/s × 86.4 = 1296 m³/day.
Is the L/s to m³/day conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (derived units) and Table 8 (non-SI units accepted for use with the SI).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Litres per Second to Cubic Metres per Day (L/s to m3/day). Retrieved October 29, 2026, from https://scientificconverters.com/discharge/liters-per-second-to-cubic-meters-per-day/
IEEE
Scientific Converters, "Litres per Second to Cubic Metres per Day (L/s to m3/day)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/discharge/liters-per-second-to-cubic-meters-per-day/