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Convert Liters per second to Milliliters per second

Instantly convert Liters per second (L/s) to Milliliters per second (mL/s) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: L/s to mL/smultiply by 1000

Reference Table

Liters per second (L/s)Milliliters per second (mL/s)
11000
55000
1010000
2525000
5050000
100100000

How to Convert Liters per second to Milliliters per second

Formula

To convert Liters per second (L/s) to Milliliters per second (mL/s): multiply by 1000

Step-by-Step

  1. Start with your value in Liters per second (L/s).
  2. Multiply by 1000 to perform the conversion.
  3. The result is your value expressed in Milliliters per second (mL/s).

Conversion Factor

1 L/s = 1000 mL/s

Reverse Factor

1 mL/s = 0.001 L/s

Worked Example

Convert 25 Liters per second to Milliliters per second: 25 L/s = 25000 mL/s

About Liter per second (L/s)

A metric flow-rate unit equal to exactly 0.001 m³/s. L/s is the typical unit for plumbing fixtures in metric-using countries, the SI-aligned sizing unit for water-supply mains (per ISO 4064 water meter specs and EN 805 European water-supply standard), fire-pump capacities (often dual-listed in L/s and m³/hr on European fire-rated pumps), and medium-flow industrial processes. Reference values: a typical kitchen faucet flows 0.1-0.15 L/s, a metric shower head 0.13-0.20 L/s, a 50 mm domestic-water service ~3-5 L/s, a 100 mm fire-hydrant supply main 30-60 L/s. Converting L/s to GPM (US gallons per minute) is multiply by 15.85 — one of the most-needed unit conversions for buyers of imported European pump/plumbing equipment specifying performance in metric units. 1 L/s = 60 L/min = 3.6 m³/hr.

About Milliliter per second (mL/s)

A small-scale flow-rate unit equal to 10⁻⁶ m³/s, used in laboratory chemistry, biotechnology, medical infusions, and micro-fluidic research. Typical applications: high-performance liquid chromatography (HPLC) mobile-phase flow at 0.5-2 mL/s under USP <621>, gas chromatography carrier-gas flow, peristaltic dosing pumps in semiconductor manufacturing (corrosive-chemical metering at sub-mL/s precision), IV-pump bolus delivery in critical care (often reported as mL/hr but internally controlled at mL/s precision), microfluidic lab-on-a-chip devices, syringe-pump fed reactors in chemical research, beer/wine analytical instruments, and 3D-printed bioreactor perfusion systems. The pharmacopeial standard for analytical-grade flow accuracy (USP, EP, JP) is typically ±2% at a defined mL/s set-point. 1 mL/s = 60 mL/min = 0.01585 GPM. Engineers should not confuse volumetric flow (mL/s) with mass flow (mg/s or g/s) for solutions of varying density.

Quick Facts

  • 1 Liter per second equals 1000 Milliliters per second
  • 1 Milliliter per second equals 0.001 Liters per second
  • Liter per second is a unit of volumetric flow rate
  • Milliliter per second is a unit of volumetric flow rate
  • This conversion is commonly used in plumbing, HVAC systems, and chemical process engineering
  • The Liter per second belongs to the metric system

Common Liter per second to Milliliter per second Conversions

Liters per second (L/s)Milliliters per second (mL/s)
0.0110
0.1100
0.25250
0.5500
11000
22000
33000
55000
1010000
1515000
2020000
2525000
5050000
7575000
100100000
250250000
500500000
10001000000
50005000000
1000010000000

Understanding Liters per second

The Liter per second (symbol: L/s) is a unit of volumetric flow rate. A metric flow-rate unit equal to exactly 0.001 m³/s. L/s is the typical unit for plumbing fixtures in metric-using countries, the SI-aligned sizing unit for water-supply mains (per ISO 4064 water meter specs and EN 805 European water-supply standard), fire-pump capacities (often dual-listed in L/s and m³/hr on European fire-rated pumps), and medium-flow industrial processes. Reference values: a typical kitchen faucet flows 0.1-0.15 L/s, a metric shower head 0.13-0.20 L/s, a 50 mm domestic-water service ~3-5 L/s, a 100 mm fire-hydrant supply main 30-60 L/s. Converting L/s to GPM (US gallons per minute) is multiply by 15.85 — one of the most-needed unit conversions for buyers of imported European pump/plumbing equipment specifying performance in metric units. 1 L/s = 60 L/min = 3.6 m³/hr.

It belongs to the metric measurement system.

Liters per second are commonly used in plumbing, HVAC systems, and chemical process engineering.

Understanding Milliliters per second

The Milliliter per second (symbol: mL/s) is a unit of volumetric flow rate. A small-scale flow-rate unit equal to 10⁻⁶ m³/s, used in laboratory chemistry, biotechnology, medical infusions, and micro-fluidic research. Typical applications: high-performance liquid chromatography (HPLC) mobile-phase flow at 0.5-2 mL/s under USP <621>, gas chromatography carrier-gas flow, peristaltic dosing pumps in semiconductor manufacturing (corrosive-chemical metering at sub-mL/s precision), IV-pump bolus delivery in critical care (often reported as mL/hr but internally controlled at mL/s precision), microfluidic lab-on-a-chip devices, syringe-pump fed reactors in chemical research, beer/wine analytical instruments, and 3D-printed bioreactor perfusion systems. The pharmacopeial standard for analytical-grade flow accuracy (USP, EP, JP) is typically ±2% at a defined mL/s set-point. 1 mL/s = 60 mL/min = 0.01585 GPM. Engineers should not confuse volumetric flow (mL/s) with mass flow (mg/s or g/s) for solutions of varying density.

It belongs to the metric measurement system.

Milliliters per second are commonly used in plumbing, HVAC systems, and chemical process engineering.

Why Convert Liters per second to Milliliters per second?

Converting between Liters per second and Milliliters per second is a frequent requirement for engineers, scientists, and students working with volumetric flow rate values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate volumetric flow rate conversion is essential.

Frequently Asked Questions

How do I convert Liters per second to Milliliters per second?

A metric flow-rate unit equal to exactly 0. To convert Liters per second to Milliliters per second, multiply by 1000. For example, 25 L/s equals 25000 mL/s.

How many Milliliters per second are in 1 Liter per second?

There are 1000 Milliliters per second in 1 Liter per second.

How many Liters per second are in 1 Milliliter per second?

There are 0.001 Liters per second in 1 Milliliter per second.

What is the formula for Liter per second to Milliliter per second conversion?

The formula is: multiply by 1000. This means 1 L/s = 1000 mL/s.

Is a Liter per second bigger than a Milliliter per second?

No. One Liter per second is smaller than one Milliliter per second because 1 L/s equals 1000 mL/s, which is greater than 1.

When do you need to convert between Liters per second and Milliliters per second?

A small-scale flow-rate unit equal to 10⁻⁶ m³/s, used in laboratory chemistry, biotechnology, medical infusions, and micro-fluidic research. Liter per second and Milliliter per second are both volumetric flow units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.

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