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🧪 PPM/PPB Calculator

Convert between parts per million, parts per billion, and other concentration units

PPM/PPB Converter

Mass-Based PPM Calculator

Environmental Standards

Solution Preparation

PPM/PPB Reference Guide

Unit Definitions:

PPM (Parts Per Million):

1 PPM = 1 mg/L = 1 mg/kg = 0.0001%

PPB (Parts Per Billion):

1 PPB = 1 μg/L = 1 μg/kg = 0.0000001%

PPT (Parts Per Trillion):

1 PPT = 1 ng/L = 1 ng/kg = 0.0000000001%

Conversion Factors:

1% = 10,000 PPM = 10,000,000 PPB

1 PPM = 1,000 PPB = 1,000,000 PPT

1 PPB = 1,000 PPT

Common Applications:

  • Water Quality: Measuring dissolved substances in drinking water
  • Air Quality: Pollutant concentrations in atmospheric monitoring
  • Soil Analysis: Contamination levels in environmental studies
  • Food Safety: Pesticide residues and additive concentrations
  • Industrial: Quality control in manufacturing processes

Important Notes:

  • PPM/PPB are dimensionless ratios (mass/mass or volume/volume)
  • For dilute aqueous solutions: 1 PPM ≈ 1 mg/L
  • Temperature and pressure can affect volume-based measurements
  • Always specify the basis (weight/weight vs weight/volume)