Convert between concentration units including ppm, ppb, ppt, percentage, and scientific mass/volume ratios. Perfect for chemistry, environmental science, and quality control applications.
Enter a concentration value and select units to convert between different parts per measurements
Follow these simple steps to convert between different concentration measurements
Input the concentration value you want to convert in the concentration field.
Choose your source parts per unit and target unit from the dropdown menus.
Click convert to see the instant conversion result with scientific precision.
Professional-grade features for accurate concentration unit conversions
Get immediate conversion results with real-time calculation as you enter values.
All conversions performed locally - your concentration data never leaves your device.
Accurate conversions using standard concentration factors for laboratory precision.
Supports all common concentration units used in chemistry and environmental science.
Fully responsive design works perfectly on smartphones, tablets, and desktops.
No registration required, no hidden fees - completely free forever.
Quick reference for frequently used concentration unit conversions
| Unit | PPM Equivalent | Usage | Examples |
|---|---|---|---|
| 1% | 10,000 ppm | High concentrations | Salt in water |
| 1 ppb | 0.001 ppm | Trace analysis | Pollutants |
| 1 ppt | 0.000001 ppm | Ultra-trace | Heavy metals |
Get answers to common questions about parts per conversion and concentration calculations
Our parts per converter uses precise conversion factors and provides highly accurate results for all concentration units including ppm, ppb, ppt and scientific mass/volume ratios.
You can convert between percentage, per mille, ppm, ppb, ppt, ppq, basis points, and scientific units like mg/kg, μg/L with instant calculations.
PPM (parts per million) represents 1 in 1,000,000 while PPB (parts per billion) represents 1 in 1,000,000,000. Our converter handles these exponential differences accurately.
Yes, this converter is perfect for chemistry, environmental science, water quality analysis, and laboratory work where precise concentration measurements are required.
No, all conversions are performed locally in your browser. Your concentration data is completely private and not stored on our servers.
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