PPM Concentration Calculator

Use exact mass-fraction ppm or, separately, the common mg/L ≈ ppm approximation for dilute water-like solutions.

Mode

Solute

Solution total

2 ppmMass-fraction ppm is dimensionless. mg/L ≈ ppm only when solution density is near 1 kg/L.

How to use this PPM Concentration Calculator

Calculate mass-based parts per million and dilute-aqueous mg/L estimates. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.