Molar Flow Converter
Convert molar flow rates between mol/s, mol/min, mol/h, mmol/s, kmol/s, kmol/h and lbmol/h.
Convert molar flow
Result
Molar Flow units
Every unit below converts to every other one in the calculator. Values are relative to the base unit, the mole per second (mol/s).
| Unit | Symbol | System | Value |
|---|---|---|---|
| Mole per second | mol/s | SI | Base unit |
| Mole per minute | mol/min | SI-accepted | ≈ 0.01666666667 mol/s |
| Mole per hour | mol/h | SI-accepted | ≈ 0.0002777777778 mol/s |
| Millimole per second | mmol/s | SI | = 0.001 mol/s |
| Kilomole per second | kmol/s | SI | = 1000 mol/s |
| Kilomole per hour | kmol/h | SI-accepted | ≈ 0.2777777778 mol/s |
| Pound-mole per hour | lbmol/h | US customary | ≈ 0.1259978806 mol/s |
Mole per second quick reference
| Mole per second | Kilomole per hour | Pound-mole per hour |
|---|---|---|
| 1 mol/s | = 3.6 kmol/h | ≈ 7.936641439 lbmol/h |
| 10 mol/s | = 36 kmol/h | ≈ 79.36641439 lbmol/h |
| 100 mol/s | = 360 kmol/h | ≈ 793.6641439 lbmol/h |
| 1000 mol/s | = 3600 kmol/h | ≈ 7936.641439 lbmol/h |
Among the 7 molar flow units on this page, the smallest is the mole per hour (mol/h) and the largest is the kilomole per second (kmol/s).
More molar flow conversions
About molar flow units
Molar flow rate is the amount of substance that passes a point per unit of time. Its SI unit is the mole per second (mol/s). Chemical engineers use it for material balances, because reactions are written in moles.
A pound-mole is exactly 453.59237 mol, so 1 lbmol/h is exactly 0.45359237 kmol/h. To get a mass flow, multiply by the molar mass: 1 kmol/h of water (about 18.015 g/mol) is about 18.015 kg/h.
Frequently asked questions
- How do I convert lbmol/h to kmol/h?
- Multiply by 0.45359237 (exact). For example, 100 lbmol/h is about 45.359 kmol/h.
- How do I convert molar flow to mass flow?
- Multiply by the molar mass. For example, 2 mol/s of carbon dioxide (about 44.01 g/mol) is about 88.02 g/s.
- How many kilomoles per hour are in one mole per second?
- One mole per second = 3.6 kmol/h (kilomoles per hour).
- How many pound-moles per hour are in one mole per second?
- One mole per second ≈ 7.936641439 lbmol/h (pound-moles per hour).