Convert between PPM (Parts Per Million), PPB (Parts Per Billion), and PPT (Parts Per Trillion) with this free, browser-based Parts Per Converter. Perfect for chemistry, environmental science, or engineering calculations.

How to Use the Parts Per Converter

  1. Enter a value (e.g., 12)

  2. Select the unit you're converting from (PPM, PPB, PPT, etc.)

  3. Click Calculate to instantly convert into all related units

  4. Use Sample to test it, or Reset to clear inputs

Key Features

  • Converts PPM, PPB, PPT, and more units simultaneously

  • Designed for scientists, lab technicians, and engineers

  • Supports decimals for precise conversions (e.g., 0.0005 PPM)

  • 100% free, no login, no ads, no data tracking

  • Powered by WebAssembly: lightning-fast & private

Why Use This Tool?

  • Instantly scale concentration values across measurement standards

  • Avoid tedious manual calculations and scientific notation errors

  • Great for water purity testing, emissions analysis, or dilution math

  • Easy enough for students, powerful enough for professionals

Practical Use Cases

  1. Convert 1 PPM of a contaminant to PPB and PPT instantly

  2. Normalize test results from lab reports into a consistent unit

  3. Calculate safe chemical levels in water, soil, or air

  4. Convert nano-concentration values for pharmaceutical work

  5. Cross-check spreadsheet values for QA/QC auditing

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FAQs

What is PPM?

PPM stands for Parts Per Million, often used to express concentrations of substances in air, water, or mixtures.

Can I convert PPM to a percentage?

Yes! 1 PPM = 0.0001%, and this tool helps visualize the scale across all ratios.

What’s the difference between PPB and PPT?

  • PPB = Parts Per Billion = 1,000x smaller than PPM

  • PPT = Parts Per Trillion = 1,000x smaller than PPB

Is the tool accurate for scientific work?

Yes. It uses precise floating-point math consistent with lab-grade conversions.

Can I use this on mobile or offline?

Yes. The tool loads once and works offline if cached by your browser.

🔒 Security Notice

All calculations happen locally in your browser.
– No data leaves your device
– No uploads or signups required
– Safe for academic, industrial, or regulatory use

Explore more tools in our Universal Unit Converters collection.

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