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Liters per Hour to mL/h Converter

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

Convert Liters per Hour to mL/h

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

Result
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5,000ml/h
5 L/h = 5,000 mL/h
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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Liters per Hour to Milliliters per Hour Conversion Table

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

How to Convert Liters per Hour to mL/h

To convert liters per hour to ml/h, multiply the flow rate by the following conversion ratio: 1,000 ml/h/liters per hour.

Since one liters per hour is equal to 1,000 ml/h, you can use this simple formula to convert:

ml/h = liters per hour × 1,000

The flow rate in ml/h is equal to the flow rate in liters per hour multiplied by 1,000.

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

ml/h = (5 L/h × 1,000) = 5,000 mL/h

How Many mL/h Are in a Liters per Hour?

There are 1,000 ml/h in a liters per hour, which is why we use this value in the formula above.

1 L/h = 1,000 mL/h|1 mL/h = 0.001 L/h

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

Liters per Hour and ml/h are both units used to measure flow rate. Keep reading to learn more about each unit.

What Is a Liters per Hour?

A liters per hour is a unit of flow rate equal to 1/60 of a liters per minute (0.0166667 L/min). Equal to 1/60 L/min. [1]

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

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

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

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. [2]

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.

When converting flow rate between liters per hour (L/h) and ml/h (mL/h), keep full floating-point precision (1 L/h = 1,000 mL/h; 1 mL/h = 0.001 L/h) during intermediate calculations and round only the final milliliters per hour figure to match your instrument tolerance.

More Liters per Hour & Milliliters per Hour Conversions

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

Frequently Asked Questions

There are 1,000 ml/h (mL/h) in 1 liters per hour (L/h). Conversely, 1 milliliters per hour (mL/h) is equal to 0.001 liters per hour (L/h).

References

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