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mL/h to Liters per Second Converter

Enter the flow rate in ml/h below to convert it to liters per second.

Convert mL/h to Liters per Second

Enter a value in ml/h (mL/h) to convert to liters per second (L/s).

Result
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0.000001389liters per second
5 mL/h = 0.000001389 L/s
Result updates automatically
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Suggested Conversions
Reference:NIST SP 811 (NIST SP 811 App. B.9 (Volume Divided by Time))
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Milliliters per Hour to Liters per Second Conversion Table

Table showing various milliliters per hour measurements converted to liters per second. Click any preset value or arrow to load it into the converter.

mL/h (mL/h)Liters per Second (L/s)
1 mL/h0.000000278 L/s
10 mL/h0.000002778 L/s
100 mL/h0.000027778 L/s
1,000 mL/h0.000277778 L/s
10,000 mL/h0.0027778 L/s
100,000 mL/h0.0277778 L/s
1,000,000 mL/h0.2777778 L/s
5,000,000 mL/h1.3888889 L/s
10,000,000 mL/h2.7777778 L/s
25,400,000 mL/h7.0555556 L/s

How to Convert mL/h to Liters per Second

To convert ml/h to liters per second, multiply the flow rate by the following conversion ratio: 0.000000278 liters per second/milliliters per hour.

Since one milliliters per hour is equal to 0.000000278 liters per second, you can use this simple formula to convert:

liters per second = ml/h × 0.000000278

The flow rate in liters per second is equal to the flow rate in ml/h multiplied by 0.000000278.

For example, here's how to convert 5 ml/h to liters per second using the formula above.

liters per second = (5 mL/h × 0.000000278) = 0.000001389 L/s

How Many Liters per Second Are in a Milliliters per Hour?

There are 0.000000278 liters per second in a milliliters per hour, which is why we use this value in the formula above.

1 mL/h = 0.000000278 L/s|1 L/s = 3,600,000 mL/h

Our milliliters per hour to liters per second calculator automatically converts your flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

mL/h and liters per second are both units used to measure flow rate. Keep reading to learn more about each unit.

What Is a Milliliters per Hour?

A milliliters per hour is a unit of flow rate equal to 1/60,000 of a liters per minute (0.000016667 L/min). Medical IV infusion pump rate unit. [1]

The milliliters per hour is classified as a metric and SI-compatible unit of flow rate. mL/h can be abbreviated as mL/h; for example, 1 milliliters per hour can be written as 1 mL/h.

In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the milliliters per hour (mL/h) a convenient decimal multiple of the liters per minute (L/min).

In practice, ml/h (mL/h) are widely used across fine-tolerance laboratory, analytical, and micro-scale flow rate measurements within SI metric workflows, engineering documentation, and technical data sheets.

What Is a Liters per Second?

A liters per second is a unit of flow rate equal to 60 liters per minute (L/min), the base unit for flow rate. Equal to 60 L/min. [2]

The liters per second is classified as a metric and SI-compatible unit of flow rate. Liters per Second can be abbreviated as L/s; for example, 1 liters per second can be written as 1 L/s.

When working with liters per second (L/s) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.

In practice, liters per second (L/s) are widely used across standard flow rate applications within SI metric workflows, engineering documentation, and technical data sheets.

When converting flow rate between ml/h (mL/h) and liters per second (L/s), keep full floating-point precision (1 mL/h = 0.000000278 L/s; 1 L/s = 3,600,000 mL/h) during intermediate calculations and round only the final liters per second figure to match your instrument tolerance.

More Milliliters per Hour & Liters per Second Conversions

Need to calculate in the opposite direction? Use our liters per second to ml/h calculator to switch your starting unit immediately. You can also explore related tools such as converting liters per second to ml/h, converting liters per minute to gpm (us), or converting gpm (us) to liters per minute.

Frequently Asked Questions

There are 2.777778e-7 liters per second (L/s) in 1 milliliters per hour (mL/h). Conversely, 1 liters per second (L/s) is equal to 3,600,000 ml/h (mL/h).

References

NIST · BIPM · ISO
  1. [1]
    NIST SP 811 (NIST SP 811 App. B.9 (Volume Divided by Time))·Flow Rate Metrology Standard — mL/h (mL/h) to Liters per Second (L/s)
    NIST SP 811 Standard
  2. [2]
    NIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: Milliliters per Hour (mL/h) & Liters per Second (L/s)
    NIST OWM Specification
  3. [3]
    BIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (mL/h to L/s)
    BIPM Reference
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