ppb to ppm conversion

How to convert ppb to ppm

ppm and ppb are defined as:

1ppm = 1/106 = 10-6

1ppb = 1/109 = 10-9

So

1ppm = 1000ppb

The number of parts-per million xppm is equal to the number of parts-per billion xppb divided by 1000:

xppm = xppb / 1000

Example: 7000ppb is equal to 7ppm:

xppm = 7000ppb / 1000 = 7ppm

ppb to ppm conversion calculator

 Enter ppb: ppb ppm result: ppm

PPB to PPM

PPM stands for parts of gas per million parts of air, and PPB is parts per billion. If that's not easy to imagine, try these examples:

Part per million (ppm):

1 second in just under 2 weeks.

1 litre of water in a swimming pool.

Part per billion (ppb):

1 second in 32 years.

1 ml of water in a swimming pool (that's about the size of a sugar cube).

ppm ppb
0.001 1
0.01 10
0.1 100
1 1000
10 10000
100 100000
1000 1000000
10000 10000000

How to convert ppb to ppm?

ppm and ppb are defined as:

1ppm = 1/106 = 10-6

1ppb = 1/109 = 10-9

So

1ppm = 1000ppb

The number of parts-per million xppm is equal to the number of parts-per billion xppb divided by 1000:

xppm = xppb / 1000

Example:

7000ppb is equal to 7ppm:

xppm = 7000ppb / 1000 = 7ppm

ppm to ppb conversion ►