Concentration conversion factors

Multiply units of left column by factor to get units in top row, for example, 1 radian = 57.296°.

 

parts / billion

parts / million

percent concentration

parts / billion

1.0000E+00

1.0000E-03

1.0000E-07

parts / million

1.0000E+03

1.0000E+00

1.0000E-04

percent concentration

1.0000E+07

1.0000E+04

1.0000E+00