TechTools

Molarity Converter

From
To
Sig. figures:

Molar (mol/L)

M

1(input)

Millimolar

mM

1000

Micromolar

μM

1.00000e+6

Nanomolar

nM

1.00000e+9

Picomolar

pM

1.00000e+12

Femtomolar

fM

1.00000e+15

Mol per Liter

mol/L

1

Mol per Cubic Meter

mol/m³

1000

Kilomol per Cubic Meter

kmol/m³

1

Mol per Deciliter

mol/dL

0.1

Mol per Milliliter

mol/mL

0.001

Mol per Cubic Centimeter

mol/cm³

0.001

Millimol per Cubic Meter

mmol/m³

1.00000e+6

Hover any row to copy the value or use it as the new input.

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Convert molar concentration across 13 units: Concentration Scale (M, mM, μM, nM, pM, fM) and SI Volume-based (mol/L, mol/m³, kmol/m³, mol/dL, mol/mL, mol/cm³, mmol/m³). 1 kmol/m³ = 1 mol/L (exact). Quick-reference covers blood glucose (3.9–5.6 mM), serum Na⁺ (135–145 mM), seawater NaCl (≈0.6 M), H₂O at 25 °C (55.5 M), and femtomolar trace detection. 100% browser-based.

How to Use

  1. 1Type a concentration value in the input field
  2. 2Select your starting unit (M, mM, μM, mol/m³, etc.) from the From dropdown
  3. 3Select your target unit in the To dropdown
  4. 4All 13 conversions appear across Concentration Scale and SI Volume groups
  5. 5Hover any row to copy or use as input
  6. 6Enable Sci notation for femtomolar trace concentrations
  7. 7Click ⇄ to swap From/To units
  8. 8Open the quick-reference table for biological and chemical concentration benchmarks

Features

  • 13 concentration units: M, mM, μM, nM, pM, fM + mol/m³, kmol/m³, mol/dL, mol/mL, mol/cm³, mmol/m³, mol/L
  • Concentration Scale and SI Volume-based groups
  • All 13 conversions shown simultaneously
  • Click any row to use as new input
  • Adjustable sig. figures (3–12)
  • Sci notation for femtomolar trace levels
  • Quick-reference: blood glucose, serum Na⁺, seawater, enzyme Km, H₂O
  • 100% browser-based - no server

Frequently Asked Questions

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