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

ppb

ppm

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

1 ppb = 0.001 ppm
1 ppm = 1000 ppb

Example: convert 77 ppb to ppm:
77 ppb = 77 x 0.001 = 0.077 ppm

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

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 to Part-per Million Conversion Table

Part-per Billion [ppb]Part-per Million [ppm]
0.01 ppb0.00001 ppm
0.1 ppb0.0001 ppm
1 ppb0.001 ppm
10 ppb0.01 ppm
50 ppb0.05 ppm
100 ppb0.1 ppm
1000 ppb1 ppm
10000 ppb10 ppm

Common pairs of Parts per

Part-per Million [ppm] to Part-per Billion [ppb]Part-per Million [ppm] to Part-per Trillion [ppt]Part-per Million [ppm] to Part-per Quadrillion [ppq]

Part-per Billion [ppb] to Part-per Million [ppm]Part-per Billion [ppb] to Part-per Trillion [ppt]Part-per Billion [ppb] to Part-per Quadrillion [ppq]

Part-per Trillion [ppt] to Part-per Million [ppm]Part-per Trillion [ppt] to Part-per Billion [ppb]Part-per Trillion [ppt] to Part-per Quadrillion [ppq]

Part-per Quadrillion [ppq] to Part-per Million [ppm]Part-per Quadrillion [ppq] to Part-per Billion [ppb]Part-per Quadrillion [ppq] to Part-per Trillion [ppt]