## Convert ppm to percent

## Convert Percent to ppm

PPM in chemistry means parts per million. A measure of the concentration of elements or compounds dispersed in a mixture or solution.

ppm and percentage by weight are based on similar concepts, so you can easily convert from ppm to percentage using the basic conversion formula.

## The Formula

### PPM to percent formula

**Formula**: ppm10,000

### Percent to PPM formula

**Formula**: Percent × 10000

## PPM and percentage by weight

Sometimes the Cornell Extension Office explains that, instead of using the terms parts per million, concentrations are reported as a percentage of weight, volume, or molar mass.