Molar Concentration Converter

ConversionEdited by Hemant Kumar and Anjita Rai, founders · How we checkUpdated Free · No sign-up

Quick answer: Choose a starting unit and a target unit, then enter a value. Common conversions: 1 mol/m³ = 0.001 mol/L; 1 mol/m³ = 1 mmol/L; 1 mol/m³ = 1,000 µmol/L. This converter covers 6 molar concentration units.

Use the Molar Concentration Converter

Molar Concentration formula and what each symbol means

target = value × (factor of starting unit ÷ factor of target unit), where each factor is the unit value in mol/m³.

Symbols used in the formula
SymbolMeaning
valueThe number you want to convert
factorThe unit’s size expressed in the base unit (mol/m³)

Molar Concentration examples

mol/m³ to mol/L

10 mol/m³ = 0.01 mol/L.

mol/m³ to mmol/L

10 mol/m³ = 10 mmol/L.

mol/m³ to µmol/L

10 mol/m³ = 10,000 µmol/L.

How to calculate Molar Concentration step by step

  1. Choose the starting unit and the target unit.
  2. Enter your value.
  3. Read the converted value, plus the conversion factor in both directions.

Popular molar concentration conversions

How to read your Molar Concentration result

Molar concentration is moles of substance per volume. One mole per litre (1 M) is 1,000 mol/m³, and 1 mmol/L equals 1 mol/m³. Converting between molar and mass concentration needs the molar mass of the substance, so this tool converts only between molar units.

UNITSYMBOLEQUALSVALUE OF 1 MOL/M³
Mole per cubic metermol/m³1 mol/m³ = 1 mol/m³1 mol/m³
Mole per liter (molar)mol/L1 mol/L = 1,000 mol/m³0.001 mol/L
Millimole per litermmol/L1 mmol/L = 1 mol/m³1 mmol/L
Micromole per literµmol/L1 µmol/L = 0.001 mol/m³1,000 µmol/L
Kilomole per cubic meterkmol/m³1 kmol/m³ = 1,000 mol/m³0.001 kmol/m³
Mole per cubic centimetermol/cm³1 mol/cm³ = 1,000,000 mol/m³0.000001 mol/cm³

Common mistakes when calculating Molar Concentration

  • Trying to convert mol/L to g/L without the molar mass.
  • Mixing mmol/L and mol/L, which differ by 1,000.
  • Confusing molarity (per litre of solution) with molality (per kilogram of solvent).

Molar Concentration FAQ

How many mol/m³ is 1 mol/L?

1 mol/L is 1,000 mol/m³.

Is 1 mmol/L equal to 1 mol/m³?

Yes. Both are the same concentration.

How do I convert mol/L to g/L?

Multiply by the molar mass of the substance in g/mol.

What is the base unit for molar concentration?

This converter uses mole per cubic meter (mol/m³) as the common base unit: every value is first converted to it and then to the target unit.

How do I convert between two molar concentration units?

Choose the starting and target units, enter the value and read the result. By hand: convert to the base unit with the table, then divide by the target unit factor.

How many moles per liter are in 1 mole per cubic meter?

1 mol/m³ = 0.001 mol/L.

How many millimoles per liter are in 1 mole per cubic meter?

1 mol/m³ = 1 mmol/L.

How many micromoles per liter are in 1 mole per cubic meter?

1 mol/m³ = 1,000 µmol/L.

Which molar concentration units does this converter support?

It covers 6 units: mole per cubic meter (mol/m³), mole per liter (mol/L), millimole per liter (mmol/L), micromole per liter (µmol/L), kilomole per cubic meter (kmol/m³), mole per cubic centimeter (mol/cm³).

How accurate is the molar concentration converter?

Results are calculated at full double precision and shown to about 8 significant figures. Round the answer to the precision of your original measurement; a result cannot be more accurate than the number you started with.

More in Molar Concentration converters

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Method, review and disclaimer

Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)