microSiemens-to-ppm

microSiemens for ppm guide

The conductivity of water is calculated in microSiemens per centimetre (µS/cm), which is an important factor for many industries.
microSiemens per centimetre in water can also be related to ppm in water (parts per million).
ppm (parts per million) in water is roughly an indication of how "dirty" the water is - ppm in water can be a combination of many factors, such as calcium, salt or other solutes in the water.
In many industries, ppm is also equal to mg/l (milligrams per litre).

This table is a guide to what µS/cm corresponds to in ppm (parts per million), and vice versa.

 

µS/cm to ppm conversion table

 

µS/cm

ppm

µS/cm

ppm

µS/cm

ppm

2

1

120

68

900

560

4

2.1

140

80

950

600

6

3.2

160

91

1000

530

8

4.2

180

100

1575

970

10

5.2

200

115

2000

1300

12

6.4

220

127

2500

1700

14

7.4

240

139

3000

1575

16

8.5

260

150

3400

2400

18

9.6

280

164

4000

2750

20

11.0

300

176

4500

3150

25

13.5

350

210

5000

3500

30

16.0

400

240

5500

3900

35

19.0

450

270

6000

4300

40

22.0

500

300

6500

4700

45

24.5

550

335

7000

5000

50

27.5

600

370

7500

5400

60

33.0

650

400

8000

5800

70

39.0

700

435

8500

6200

80

45.0

750

470

9000

6600

90

51.0

800

500

9500

7000

100

56.0

850

530

10000

7400