What is the base SI unit for flow - molar?

The primary reference unit for flow - molar in this converter is the Mole per Second (mol/s). All 7 supported flow - molar units are anchored to this standard.

Are these flow - molar conversion factors verified?

Yes, all flow - molar conversion constants on UnitConvertersGo are verified against NIST Special Publication 811 and ISO/IEC 80000 international metrology standards.

Flow - Molar Converter

Enter a value below to convert between metric, imperial, and standard flow - molar units.

Convert Flow - Molar

Enter a value and select the units to convert between moles per second, kilomoles per second, and kilomoles per hour.

Instant conversion

Value

From

Result

0.01 kmol/s

10 mol/s = 0.01 kmol/s

10 mol/s = 0.01 kmol/s = 36 kmol/hGet Widget

You can change the units using the dropdowns above or click on a unit button.

Suggested Conversions

Common Flow - Molar Reference Points

Here are some common flow - molar values in Mole per Second (mol/s), Kilomole per Second (kmol/s), and Kilomole per Hour (kmol/h). Click any preset value or arrow to load it into the converter.

Description	Mole per Second (mol/s)	Kilomole per Second (kmol/s)	Kilomole per Hour (kmol/h)
1 mole per second unit	1	0.001	3.6
5 moles per second	5	0.005	18
10 moles per second benchmark	10	0.01	36
25 moles per second	25	0.025	90
50 moles per second	50	0.05	180
100 moles per second reference	100	0.1	360

Flow - Molar Conversion Formulas

Use the following formulas to convert between moles per second, kilomoles per second, and kilomoles per hour.

Moles per Second to Kilomoles per Second

kmol/s = mol/s × 0.001

Kilomoles per Second to Moles per Second

mol/s = kmol/s × 1,000

Moles per Second to Kilomoles per Hour

kmol/h = mol/s × 3.6

Example: Convert 10 Moles per Second (mol/s) to Kilomoles per Second (kmol/s)

1 mol/s = 0.001 kmol/s

10 mol/s × 0.001 = 0.01 kmol/s

All flow - molar conversions are anchored to the international SI base unit (Mole per Second) for full scientific and engineering accuracy.

More Mole per Second & Kilomole per Second Conversions

Convert from Moles per Second

Convert to Kilomoles per Second

Frequently Asked Questions

1 mole per second (mol/s) equals 0.001 kilomoles per second (kmol/s). Multiply your mole per second value by 0.001 or enter it in the Flow - Molar Converter above for instant calculation.

Flow - Molar Converter

Quick Info

Mole per Second (mol/s) is a primary flow - molar unit used globally across science, commerce, and daily measurement.
Kilomole per Second (kmol/s) is widely used alongside mol/s for practical flow - molar specifications and conversions.
Mole per Second (mol/s) serves as the standardized reference base unit anchoring all 7 units in this category.
Verified accuracy: All conversion factors follow official NIST SP 811 and ISO/IEC 80000 metrology constants.

Flow - Molar Units Comparison

Mole per Second (mol/s)

SI unit of molar flow rate.

Kilomole per Second (kmol/s)

Equal to 1,000 mol/s.

Kilomole per Hour (kmol/h)

Chemical plant molar throughput unit (0.27778 mol/s).

References

[1]NIST · NIST HB 133 / SP 811
Source
[2]BIPM · BIPM SI-9
Source
[3]NIST SP 811 · NIST SP 811 App. B.9
Source

Related Categories

Add This Calculator to Your Site

Free HTML widget · 4 embed formats

Embed the interactive Flow - Molar Converter widget on your blog, classroom, or documentation page.

Customize & Get Embed Code

All Flow - Molar Conversion Calculators (6)

Select any dedicated flow - molar pair below for worked examples and printable tables

Moles per Second to Kilomoles per Second (mol/s to kmol/s)Kilomoles per Second to Moles per Second (kmol/s to mol/s)Moles per Second to Kilomoles per Hour (mol/s to kmol/h)Kilomoles per Hour to Moles per Second (kmol/h to mol/s)Moles per Second to Moles per Minute (mol/s to mol/min)Moles per Minute to Moles per Second (mol/min to mol/s)

Category Conversion Matrix

Simultaneous comparison of 7 units in this category

Mole per Second (mol/s)

Kilomole per Second (kmol/s)

0.001

Kilomole per Hour (kmol/h)

3.6

Mole per Minute (mol/min)

Mole per Hour (mol/h)

3,600

Millimole per Second (mmol/s)

1,000

Pound-mole per Hour (lbmol/h)

7.93664

Flow - Molar Unit Definitions & Symbols

Mole per Second (mol/s)

SI unit of molar flow rate.

Kilomole per Second (kmol/s)

METRIC

Equal to 1,000 mol/s.

Kilomole per Hour (kmol/h)

METRIC

Chemical plant molar throughput unit (0.27778 mol/s).

Mole per Minute (mol/min)

METRIC

Equal to 1/60 mol/s.

Mole per Hour (mol/h)

METRIC

Equal to 1/3600 mol/s.

Millimole per Second (mmol/s)

METRIC

Equal to 0.001 mol/s.

Pound-mole per Hour (lbmol/h)

US CUSTOMARY

US chemical engineering molar flow unit (≈ 0.126 mol/s).

References

NIST · BIPM · ISO

[1]
NIST (NIST HB 133 / SP 811)·Checking the Net Contents of Packaged Goods, Handbook 133 - 2019 Edition & NIST SP 811
NIST HB 133 Standard
[2]
BIPM (BIPM SI-9)·The International System of Units (SI Brochure, 9th Edition)
BIPM SI Brochure
[3]
NIST SP 811 (NIST SP 811 App. B.9)·NIST Guide to the SI, Appendix B.9: Factors for Units Listed by Kind of Quantity or Field of Science
NIST SP 811 Appendix B.9

Measurement Navigator78 Categories9 Scientific Domains

Browse All 78 Measurement Categories

A–Z Directory →Sitemap

Fluids & Chemical ConvertersFluid dynamics, rheology, and chemical process converters covering volumetric, mass, and molar flow rates, mass flux density, molar/solution concentration, dynamic/kinematic viscosity, surface tension, and permeability.

Concentration - Molar

5 units

Concentration - Solution

6 units