Conversion method
Amount of substance per time. Converting to mass flow needs molar mass; converting gas volume also needs temperature and pressure.
kmol/h = x × 3.5999999999999996
10 mol/s = 36 kmol/h.
| mol/s | kmol/h |
|---|---|
| 1 | 3.6 |
| 5 | 18 |
| 10 | 36 |
| 25 | 90 |
| 50 | 180 |
| 100 | 360 |
Unit definitions and sources
Amount of substance per time. Converting to mass flow needs molar mass; converting gas volume also needs temperature and pressure.
| Unit and system | Use | Definition | Relationship |
|---|---|---|---|
| Mole per second (mol/s); si | Common units | Mole per second: base (mol-s) = value × 1. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Kilomole per hour (kmol/h); si | Common units | Kilomole per hour: base (mol-s) = value × 0.2777777777777778. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Mole per minute (mol/min); si | Specialist units | Mole per minute: base (mol-s) = value × 0.016666666666666666. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Mole per hour (mol/h); si | Specialist units | Mole per hour: base (mol-s) = value × 0.0002777777777777778. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Millimole per second (mmol/s); si | Specialist units | Millimole per second: base (mol-s) = value × 0.001. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Examol/second (Emol/(s)); other | Specialist units | examol/second = 1e+18 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Petamol/second (Pmol/(s)); other | Specialist units | petamol/second = 1000000000000000.0 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Teramol/second (Tmol/(s)); other | Specialist units | teramol/second = 1000000000000.0 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Gigamol/second (Gmol/(s)); other | Specialist units | gigamol/second = 1000000000.0 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Megamol/second (Mmol/(s)); other | Specialist units | megamol/second = 1000000.0 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Kilomol/second (kmol/(s)); other | Specialist units | kilomol/second = 1000.0 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Hectomol/second (hmol/(s)); other | Specialist units | hectomol/second = 100.0 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Decimol/second (dmol/(s)); other | Specialist units | decimol/second = 0.1 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Centimol/second (cmol/(s)); other | Specialist units | centimol/second = 0.01 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Micromol/second (µmol/(s)); other | Specialist units | micromol/second = 1e-06 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Nanomol/second (nmol/(s)); other | Specialist units | nanomol/second = 1e-09 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Picomol/second (pmol/(s)); other | Specialist units | picomol/second = 1e-12 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Femtomol/second (fmol/(s)); other | Specialist units | femtomol/second = 1e-15 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Attomol/second (amol/(s)); other | Specialist units | attomol/second = 1e-18 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Mol/day (mol/(d)); other | Specialist units | mol/day = 1.1574074074074073e-05 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Millimol/minute (mmol/(min)); other | Specialist units | millimol/minute = 1.6666666666666667e-05 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Millimol/hour (mmol/(h)); other | Specialist units | millimol/hour = 2.7777777777777776e-07 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Millimol/day (mmol/(d)); other | Specialist units | millimol/day = 1.1574074074074074e-08 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Kilomol/minute (kmol/(min)); other | Specialist units | kilomol/minute = 16.666666666666668 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Kilomol/day (kmol/(d)); other | Specialist units | kilomol/day = 0.011574074074074073 mol-s, derived from the component SI/customary definitions. Common use: Molar Flow. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
Sources: NIST: SP 811 Appendix B.8: conversion factors; BIPM: SI prefixes
Precision of molar flow conversions
All 25 molar flow units convert through Mole per second (mol/s). 25 have an exact defined relationship to the base unit and 0 are conventional or measured values. Results and the tables on this page come from the same engine, so a table value can be checked against the converter directly.
Standard display shows up to six decimal places, switching to scientific notation for very large or small values. Calculation uses JavaScript binary floating point independently of display rounding, so extra digits are not a claim about measurement accuracy. Each unit lists its own source; a citation records where the definition comes from, not an independent review. See Conversion methodology for the review and correction process.