Moles per Hour to Millimoles per Second Converter
Enter the molar flow rate in moles per hour below to convert it to millimoles per second.
Convert Moles per Hour to Millimoles per Second
Enter a value in moles per hour (mol/h) to convert to millimoles per second (mmol/s).
Mole per Hour to Millimole per Second Conversion Table
Table showing various mole per hour measurements converted to millimoles per second. Click any preset value or arrow to load it into the converter.
| Moles per Hour (mol/h) | Millimoles per Second (mmol/s) |
|---|---|
| 1 mol/h | 0.2777778 mmol/s |
| 2 mol/h | 0.5555556 mmol/s |
| 2.5 mol/h | 0.6944444 mmol/s |
| 5 mol/h | 1.3888889 mmol/s |
| 10 mol/h | 2.7777778 mmol/s |
| 15 mol/h | 4.1666667 mmol/s |
| 20 mol/h | 5.5555556 mmol/s |
| 25 mol/h | 6.9444444 mmol/s |
| 30 mol/h | 8.3333333 mmol/s |
| 50 mol/h | 13.8888889 mmol/s |
How to Convert Moles per Hour to Millimoles per Second
To convert moles per hour to millimoles per second, multiply the molar flow rate by the following conversion ratio: 0.2777778 millimoles per second/mole per hour.
Since one mole per hour is equal to 0.2777778 millimoles per second, you can use this simple formula to convert:
The molar flow rate in millimoles per second is equal to the molar flow rate in moles per hour multiplied by 0.2777778.
For example, here's how to convert 5 moles per hour to millimoles per second using the formula above.
How Many Millimoles per Second Are in a Mole per Hour?
There are 0.2777778 millimoles per second in a mole per hour, which is why we use this value in the formula above.
Our mole per hour to millimole per second calculator automatically converts your molar flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Moles per Hour and millimoles per second are both units used to measure molar flow rate. Keep reading to learn more about each unit.
What Is a Mole per Hour?
A mole per hour is a unit of molar flow rate equal to 1/3,600 of a mole per second (0.000277778 mol/s). Equal to 1/3600 mol/s. [1]
The mole per hour is classified as a metric and SI-compatible unit of molar flow rate. Moles per Hour can be abbreviated as mol/h; for example, 1 mole per hour can be written as 1 mol/h.
When working with moles per hour (mol/h) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, moles per hour (mol/h) are widely used across fine-tolerance laboratory, analytical, and micro-scale molar flow rate measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Millimole per Second?
A millimole per second is a unit of molar flow rate equal to 1/1,000 of a mole per second (0.001 mol/s). Equal to 0.001 mol/s. [2]
The millimole per second is classified as a metric and SI-compatible unit of molar flow rate. Millimoles per Second can be abbreviated as mmol/s; for example, 1 millimole per second can be written as 1 mmol/s.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the millimole per second (mmol/s) a convenient decimal multiple of the mole per second (mol/s).
In practice, millimoles per second (mmol/s) are widely used across fine-tolerance laboratory, analytical, and micro-scale molar flow rate measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting molar flow rate between moles per hour (mol/h) and millimoles per second (mmol/s), keep full floating-point precision (1 mol/h = 0.2777778 mmol/s; 1 mmol/s = 3.6 mol/h) during intermediate calculations and round only the final millimole per second figure to match your instrument tolerance.
More Mole per Hour & Millimole per Second Conversions
Need to calculate in the opposite direction? Use our millimoles per second to moles per hour calculator to switch your starting unit immediately. You can also explore related tools such as converting millimoles per second to moles per hour, converting moles per second to kilomoles per second, or converting kilomoles per second to moles per second.
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Flow - Molar Metrology Standard — Moles per Hour (mol/h) to Millimoles per Second (mmol/s)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Mole per Hour (mol/h) & Millimole per Second (mmol/s)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (mol/h to mmol/s)