# Ppb to ppm

This converter can convert parts-per-billion(ppb) to parts-per-million(ppm), negative and decimal numbers are also supported. Type your parts-per-billion number then click Convert now button. It is also possible to convert ppm to ppb  Ppm to ppb converter.

 Type ppb: ppb ppm result: ppm

## Knowledge of converter

In science and engineering, the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction. Since these fractions are quantity-per-quantity measures, they are pure numbers with no associated units of measurement. Commonly used are ppm (parts-per-million, 10−6), ppb (parts-per-billion, 10−9), ppt (parts-per-trillion, 10−12) and ppq (parts-per-quadrillion, 10−15). This notation is not part of the SI system and its meaning is ambiguous.

## How to convert parts-per-billion(ppb) to parts-per-million(ppm)

1. Check definition
1 parts-per billion = 1/109 = 10-9
1 parts-per-million = 1/106 = 10-6

2. we get:
1ppm = 1000ppb
so 1ppb = 0.001ppm

## Example

1. 1ppb = 0.001ppm

2. 2ppb = 0.002ppm

3. 10ppb = 0.01ppm

4. 0.1ppb = 0.0001ppm

5. 0.2ppb = 0.0002ppm

ppbppm
0.10.0001
0.20.0002
10.001
20.002
50.005
100.01
200.02
1000.1
2000.2
10001
20002
1000010
100000100
10000001000