ppm to ppt conversion

 

How to convert ppm to ppt

ppm and ppt are defined as:

1ppm = 1/10⁶ = 10^-6

1ppt = 1/10¹² = 10^-12

So

1ppm = 10⁶ppt

The number of parts-per trillion x_ppt is equal to the number of parts-per million x_ppm multiplied by 10⁶:

x_ppt = x_ppm ⋅ 10⁶

 

Example: 7ppm is equal to 7000ppb:

x_ppt = 7ppm ⋅ 10⁶ = 7000000ppt

 

ppm to ppt conversion calculator