L/min to L/s Volumetric Flow Rate Conversion Chart
| Liter per minute (L/min) | Liter per second (L/s) | Reference Benchmark | Formula Step |
|---|---|---|---|
| 1 L/min | 0.017 L/s | Laboratory Micro-Dosing Chemical Feed Pump | 1 × 0.016667 = 0.0167 L/s |
| 2 L/min | 0.033 L/s | Medical Respirator Humidifier Liquid Feed Rate | 2 × 0.016667 = 0.0333 L/s |
| 5 L/min | 0.083 L/s | Water-Saving Bathroom Washbasin Faucet Aerator | 5 × 0.016667 = 0.0833 L/s |
| 6 L/min | 0.1 L/s | Residential Undersink Drinking Water Filtration Spout | 6 × 0.016667 = 0.1 L/s |
| 10 L/min | 0.167 L/s | Standard European Domestic Showerhead Water Flow | 10 × 0.016667 = 0.167 L/s |
| 15 L/min | 0.25 L/s | Commercial Kitchen Sink Pot Filler Tap Delivery | 15 × 0.016667 = 0.25 L/s |
| 20 L/min | 0.333 L/s | Bathtub Rapid Fill Mixer Spout Discharge Rate | 20 × 0.016667 = 0.333 L/s |
| 30 L/min | 0.5 L/s | Domestic Gas Combination Boiler Hot Water Tap Output | 30 × 0.016667 = 0.5 L/s |
| 45 L/min | 0.75 L/s | Residential Garden Irrigation Sprinkler Zone Feed | 45 × 0.016667 = 0.75 L/s |
| 60 L/min | 1 L/s | Commercial Building Sanitary Water Supply Sub-Branch | 60 × 0.016667 = 1 L/s |
| 90 L/min | 1.5 L/s | Commercial Glasswasher Rapid Rinse Boost Pump | 90 × 0.016667 = 1.5 L/s |
| 120 L/min | 2 L/s | Residential Swimming Pool Water Circulation Pump | 120 × 0.016667 = 2 L/s |
| 300 L/min | 5 L/s | Commercial HVAC Chilled Water Secondary Manifold | 300 × 0.016667 = 5 L/s |
| 600 L/min | 10 L/s | Industrial Food Processing Liquid Blending Pipeline | 600 × 0.016667 = 10 L/s |
| 1200 L/min | 20 L/s | Municipal Water Distribution Pumping Station Header | 1200 × 0.016667 = 20 L/s |
Liter per minute to Liter per second Formula & Unit Definitions
Both units measure volume using the metric liter (one cubic decimeter). The mathematical conversion is determined purely by the sexagesimal time scalar: there are exactly 60 seconds in one minute. Flowing one liter across 60 seconds produces 1/60 liter every single second (1 ÷ 60 = 0.016666667 L/s, or approximately 0.016667 L/s). To convert liters per minute to liters per second, multiply by 0.016667 (or divide directly by 60).
Quick Estimation: Quick mental shortcut: To convert L/min to L/s in your head, divide by 60 (or divide by 6 and shift the decimal one place to the left). For example, 30 L/min ÷ 60 = 0.5 L/s; 120 L/min ÷ 60 = 2 L/s; 90 L/min ÷ 60 = 1.5 L/s.
Liter per minute — L/min
Operational Metric Flow- Standard operational metric unit for fluid delivery (1 L/min = 1 dm³/min)
- Universal rating for residential plumbing fixtures, boiler flow, and medical gas delivery
- Equivalent to exactly 1/60 liter per second (~0.016667 L/s)
Liter per second — L/s
Coherent SI Standard- Standard coherent metric unit for kinematic flow rate (1 L/s = 1 dm³/s = 0.001 m³/s)
- Core unit for hydraulic pipe sizing, Darcy-Weisbach friction head loss, and civil engineering
- Directly equivalent to exactly 60 liters per minute
Frequently Asked Questions
Q.How do you convert liters per minute to liters per second accurately?
Divide the flow rate in liters per minute by 60 (or multiply by 0.016667). For example, 60 L/min ÷ 60 = 1 L/s.
Q.What is the reverse conversion from liters per second to liters per minute?
To convert back, use the Liters per Second to Liters per Minute Converter where 1 L/s equals exactly 60 L/min.
Q.Why do civil and hydraulic engineers prefer L/s over L/min?
Fluid dynamics formulas such as the Darcy-Weisbach pipe friction equation use seconds as the standard time unit, making L/s directly compatible with fluid velocity (m/s).
Q.What is 15 L/min in liters per second?
15 liters per minute equals exactly 0.25 liters per second (L/s), a common flow rate for residential bathtubs and high-flow kitchen taps.