AquaVerify

Molarity calculator

Convert mass, moles or mass concentration into mol/L, mM, µM and nM.

Molarity calculator

Formula

M = m / (MW x V)

Variables and units

  • g, mg, µg, ng
  • mol, mmol, µmol, nmol
  • L, mL, µL
  • g/mol

Worked example

Example: 0.5 g, 180.16 g/mol and 500 mL gives 0.0055506 M.

0.0055506 M; approximately 5.551 mM.

How to read the result

Calculate molarity from mass, molar mass and volume without rounding intermediate values.

Validation rules

Inputs must be finite, compatible and within calculation limits. Denominators cannot be zero.

Warnings

This calculator is an educational and workflow aid. It does not replace a validated method, SOP, accreditation decision or regulatory interpretation.

Private by design

Inputs and results stay in your browser. AquaTools Free does not send calculation values to AquaVerify servers.

Sources

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AquaVerify Cloud

Move from a one-off calculation to controlled sample, method and report workflows in AquaVerify Cloud.

FAQ

Are my inputs stored?

Inputs and results stay in your browser. AquaTools Free does not send calculation values to AquaVerify servers.

Can I use this as an official method record?

This calculator is an educational and workflow aid. It does not replace a validated method, SOP, accreditation decision or regulatory interpretation.

Where do saved calculations live?

AquaVerify Cloud keeps the governed workflows: saved calculations, history, traceability, ELN, LIMS review, reports and collaboration.