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Parts Per Converter - Convert Between PPM, PPB, Percent, Permille Online Free
Convert between parts per million, parts per billion, percent, and permille.
What Is a Parts Per Converter?
A parts per converter converts between concentration ratio units instantly.
Supported Units
- PPM — 1 part in 1,000,000 = 0.0001%.
- PPB — 1 part in 1 billion = 0.0000001%.
- Percent — 1 part in 100 = 10,000 PPM.
- Permille — 1 part in 1000 = 0.1% = 1000 PPM.
How Does Parts Per Converter Work?
PPM = 1/1M, PPB = 1/1B, percent = 1/100, permille = 1/1000. Simple power-of-10 conversions.
How to Use This Tool
- Enter a numeric value — Type the measurement you want to convert.
- Select the source unit — Choose the unit you are converting from.
- Read the results — The tool instantly displays equivalents in every supported unit.
Try our Pressure Converter or Energy Converter.
Use Cases
Environment
Convert water/air quality levels.
Chemistry
Convert solution concentrations.
Quality
Express impurity levels correctly.
Related Tools
- Energy Converter - J, cal, kWh, BTU.
- Pressure Converter - Pa, bar, psi, atm.
- Weight Converter - kg, lb, oz, g.
Privacy
All calculations are performed entirely in your browser using JavaScript. No data is sent to our servers. We do not store, log, or share any values you enter.
Assumes dilute solutions where density approximates solvent density.
AI Overview
A parts per converter converts between PPM, PPB, percent, and permille.
Quick Answers
PPM in 1%?
A:10,000.
PPB in 1 PPM?
A:1000.
50 PPM in %?
A:0.005%.
How to Use the Parts Per Converter - Convert Between PPM, PPB, Percent, Permille Online Free
- Type the concentration ratio value you want to convert into the input field. Decimals and large numbers are supported.
- Choose your starting unit from the dropdown menu - for example ppm, ppb, or percent (%).
- See the value converted into every supported unit instantly, including permille, ppt, or mg/L.
Benefits
- Instant Multi-Unit Conversion
- Multiple Unit Systems
- 100% Free to Use
- Works on Any Device
Common Mistakes
- PPM vs PPB (PPM is 1000x larger)
- Percent (1/100) vs permille (1/1000)
- 1% = 10,000 PPM not 100
- PPM/PPB can be weight or volume based
Professional Tips
- 1% = 10,000 PPM = 10M PPB = 10 permille
- Water quality uses PPM for solids, PPB for traces
- Air quality uses PPM for gases
- Percent for large concentrations, PPM/PPB for traces
Common Use Cases
Chemistry
Convert concentration units.
Environmental
Convert water quality parameters.
Quality
Express impurity levels.
Related Concepts
PPM
1 part in 1,000,000 = 0.0001%.
PPB
1 part in 1 billion = 0.0000001%.
Percent
1 part in 100 = 10,000 PPM.
Permille
1 part in 1000 = 0.1% = 1000 PPM.
Frequently Asked Questions
References
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