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By Shailendra Singh
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Updated on 5 Mar 2025, 16:31 IST
PPM and PPB stand for “parts per million” and “parts per billion,” respectively. They are units of measurement used to express the concentration of a substance in a mixture. PPM indicates the number of parts of a substance per one million parts of the whole mixture,
while PPB indicates the number of parts of a substance per one billion parts of the mixture. These units are commonly used in various fields to quantify tiny concentrations, such as pollutants in the environment or trace elements in a solution.
Converting PPM (parts per million) to PPB (parts per billion) involves multiplying the PPM value by 1000. This is because there are 1000 parts per billion in one part per million.
Formula: PPB = PPM × 1000
For example, if you have a concentration of 500 PPM, the equivalent value in PPB would be:
PPB = 500 PPM × 1000 = 500,000 PPB
Simply put, to convert PPM to PPB, just multiply the PPM value by 1000.
| ppm | ppb |
| 0.001 | 1 |
| 0.01 | 10 |
| 0.1 | 100 |
| 1 | 1000 |
| 10 | 10000 |
| 100 | 100000 |
| 1000 | 1000000 |
| 10000 | 10000000 |
To convert PPM to PPB, multiply the PPM value by 1000. This accounts for the difference between parts per million and parts per billion.
1 ppb is equal to 0.001 ppm. This means that there are 0.001 parts of a substance per million parts of the mixture.
1 ppb (parts per billion) is equivalent to 0.0001% or 0.000001 of the whole mixture. It's an extremely small concentration.
PPM stands for parts per million, representing the concentration of a substance in a mixture as one part in a million parts. PPB stands for parts per billion, indicating the concentration as one part in a billion parts. These units are used to express extremely small concentrations, common in scientific and environmental measurements.
PPM stands for parts per million, representing the concentration of a substance in a mixture as one part in a million parts. PPB stands for parts per billion, indicating the concentration as one part in a billion parts. These units are used to express extremely small concentrations, common in scientific and environmental measurements.
PPM stands for parts per million, representing the concentration of a substance in a mixture as one part in a million parts. PPB stands for parts per billion, indicating the concentration as one part in a billion parts. These units are used to express extremely small concentrations, common in scientific and environmental measurements.