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Part-per Million [ppm] to Part-per Billion [ppb] Converter

Quick Reference

1 Part-per Million (ppm) = 1000 Part-per Billion (ppb)

1 Part-per Billion (ppb) = 0.001 Part-per Million (ppm)

How to Convert Part-per Million to Part-per Billion

1 ppm = 1000 ppb
1 ppb = 0.001 ppm

To convert Part-per Million to Part-per Billion, multiply the value by 1000. To convert Part-per Billion back to Part-per Million, divide by 1000.

Example: convert 10 ppm to ppb:
10 ppm = 10 x 1000 = 10000 ppb

↔ Convert Part-per Billion to Part-per Million

Part-per Million

Definition: Parts per million (ppm) is a way of expressing very dilute concentrations of substances. It represents the number of parts of a substance per million parts of the mixture.

History/origin: The concept of parts per million arose out of the need to express very small concentrations of substances in a convenient way. It is widely used in chemistry, environmental science, and engineering.

Current use: PPM is commonly used to measure the concentration of pollutants in air and water, the concentration of trace elements in materials, and the concentration of additives in food and beverages.

Part-per Billion

Definition: Parts per billion (ppb) is a way of expressing extremely dilute concentrations of substances. It represents the number of parts of a substance per billion parts of the mixture.

History/origin: Similar to ppm, ppb was developed to express even smaller concentrations than ppm. It's a natural extension of the parts-per notation system.

Current use: PPB is used when measuring extremely low levels of contaminants or trace elements, for example, in sensitive environmental monitoring or in advanced chemical analysis.

Part-per Million to Part-per Billion Conversion Table

Part-per Million [ppm]Part-per Billion [ppb]
1 ppm1000 ppb
2 ppm2000 ppb
5 ppm5000 ppb
10 ppm10000 ppb
20 ppm20000 ppb
50 ppm50000 ppb
100 ppm100000 ppb
200 ppm200000 ppb
500 ppm500000 ppb
1000 ppm1000000 ppb

Common Part-per Million to Part-per Billion conversions

  • 1 ppm = 1,000 ppb
  • 2 ppm = 2,000 ppb
  • 3 ppm = 3,000 ppb
  • 4 ppm = 4,000 ppb
  • 5 ppm = 5,000 ppb
  • 6 ppm = 6,000 ppb
  • 7 ppm = 7,000 ppb
  • 8 ppm = 8,000 ppb
  • 9 ppm = 9,000 ppb
  • 10 ppm = 10,000 ppb
  • 12 ppm = 12,000 ppb
  • 15 ppm = 15,000 ppb
  • 20 ppm = 20,000 ppb
  • 25 ppm = 25,000 ppb
  • 30 ppm = 30,000 ppb
  • 40 ppm = 40,000 ppb
  • 50 ppm = 50,000 ppb
  • 60 ppm = 60,000 ppb
  • 75 ppm = 75,000 ppb
  • 100 ppm = 100,000 ppb
  • 150 ppm = 150,000 ppb
  • 200 ppm = 200,000 ppb
  • 250 ppm = 250,000 ppb
  • 300 ppm = 300,000 ppb
  • 500 ppm = 500,000 ppb
  • 750 ppm = 750,000 ppb
  • 1,000 ppm = 1,000,000 ppb

Part-per Million [ppm] to Part-per Billion [ppb] Converter

What is 1 ppm in ppb?
1 Part-per Million (ppm) equals 1,000 ppb, and 1 ppb equals 0.001 ppm.
How do I convert Part-per Million to Part-per Billion?
Multiply by 1,000: 10 ppm × 1,000 = 10,000 ppb. The converter above does it for any value, with the precision you choose.
What is 100 ppm in ppb?
100 ppm = 100,000 ppb. Common amounts are listed on this page, each with its own step-by-step page.
Is a Part-per Million bigger than a Part-per Billion?
Yes. 1 ppm = 1,000 ppb, so the same quantity becomes a larger number when written in ppb.
Part-per Million to Part-per Billion Converter | UtilLab