This calculator will instantly convert parts per million (PPM) to a percentage.

## How To Convert PPM To Percent

1 ppm is equal to .0001%. That percentage is calculated by dividing 1 by 1 million which equals .000001. This decimal value is converted to a percentage by multiplying by 100.

.000001 X 100 = .0001%

So the formula to convert PPM to percent is to multiply by .0001 or divide by 10000.