mL/h to Liters per Hour Converter
Enter the flow rate in ml/h below to convert it to liters per hour.
Convert mL/h to Liters per Hour
Enter a value in ml/h (mL/h) to convert to liters per hour (L/h).
Milliliters per Hour to Liters per Hour Conversion Table
Table showing various milliliters per hour measurements converted to liters per hour. Click any preset value or arrow to load it into the converter.
How to Convert mL/h to Liters per Hour
To convert ml/h to liters per hour, multiply the flow rate by the following conversion ratio: 0.001 liters per hour/milliliters per hour.
Since one milliliters per hour is equal to 0.001 liters per hour, you can use this simple formula to convert:
The flow rate in liters per hour is equal to the flow rate in ml/h multiplied by 0.001.
For example, here's how to convert 5 ml/h to liters per hour using the formula above.
How Many Liters per Hour Are in a Milliliters per Hour?
There are 0.001 liters per hour in a milliliters per hour, which is why we use this value in the formula above.
Our milliliters per hour to liters per hour 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 hour 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 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. [2]
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.
When converting flow rate between ml/h (mL/h) and liters per hour (L/h), keep full floating-point precision (1 mL/h = 0.001 L/h; 1 L/h = 1,000 mL/h) during intermediate calculations and round only the final liters per hour figure to match your instrument tolerance.
More Milliliters per Hour & Liters per Hour Conversions
Need to calculate in the opposite direction? Use our liters per hour to ml/h calculator to switch your starting unit immediately. You can also explore related tools such as converting liters per hour to ml/h, converting liters per minute to gpm (us), or converting gpm (us) to liters per minute.
Convert from mL/h
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Volume Divided by Time))·Flow Rate Metrology Standard — mL/h (mL/h) to Liters per Hour (L/h)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: Milliliters per Hour (mL/h) & Liters per Hour (L/h)
- [3]BIPM ReferenceBIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (mL/h to L/h)