PPM To Microsiemens Per Cm Calculator: Convert PPM To µS/cm

Electrical conductivity in water depends on the concentration of particles that conduct electricity. If we measure these particles in terms of PPM (Parts Per Million), we can also determine electrical conductivity (expressed in microsiemens per centimeter or µS/cm for short). TDS meters (Total Disolved Solids meter) can, for example, measure PPM as well a microsiemens per cm.

Basically, we are converting PPM to microsiemens per cm (PPM to µS/cm). To help everybody out with this conversion, we have created a PPM To Miscrosiemens Per Cm Calculators that takes into account TDS meter measurements for US meters (500 PPM scale), European market (640 PPM scale), and Australian market (500 PPM scale). We will explain these scales further on (it’s just different PPM scales).

On top of that, we feature 2 examples of how to convert PPM to µS/cm, as well as 3 conversion charts (conversion of 1-1000 PPM to µS/cm) for the US, European, and Australian TDS meter scales.

Here is the calculator:

 

Let’s do one example to illustrate how this online calculator works:

Say you measure 150 PPM with a US-made TDS meter. How many microsiemens per centimeter is 150 PPM (US scale)? To figure this out, you just slide the PPM slider to ‘150‘, pick ‘United States Of America‘ for Country (TDS Meter), and you get this result:

convert ppm to us per centimeter

We can quickly see that if an American TDS meter shows 150 PPM, this is equal to 300 µS/cm.

Let’s have a look at how this conversion works, as well as explain all these US, Europe, Australia PPM scales:

How To Convert PPM To µS/cm? (Math)

Now, to convert PPM to microsiemens per cm, we have to be aware of these different PPM scales and conversion relationships:

1 µS/cm = 0.5 PPM (US)

1 µS/cm = 0.64 PPM (Europe and International)

1 µS/cm = 0.7 PPM (Australia)

Namely, we can see that 1 µS/cm is the US (US TDS meter) is equal to 0.5 PPM. Because different countries use different PPM scales, we have 3 formulas (1st for the US, 2nd for Europe and International market, 3rd for Australia). Thus, we can write 3 PPM to microsiemens per cm formulas like this:

µS/cm = PPM (US) /0.5

µS/cm = PPM (Europe, International) /0.64

µS/cm = PPM (Australia) /0.7

Let take 1 example to demonstrate how to use these equations:

How many µS/cm is 100 PPM? Calculate for the US market, European market, and Australian market. We simply insert ‘100 PPM’ into the equations above like this:

US Market: µS/cm (100 PPM) = 100 PPM /0.5 = 200 µS/cm

European Market: µS/cm (100 PPM) = 100 PPM /0.64 = 171.88 µS/cm

Australian Market: µS/cm (100 PPM) = 100 PPM /0.7 = 142.86 µS/cm

We can quickly see that 100 PPM in the US is equal to 200 µS/cm, in Europe 100 PPM is equal to 171.88 µS/cm, and in Australia 100 PPM is equal to 142.86 µS/cm.

We get different results for these countries because we use different PPM scales in different countries. Namely:

  • In the US, we use a 500 PPM scale.
  • In Europe (European Union) and internationally, we use a 640 PPM scale.
  • In Australia, we use a 700 PPM scale.

We have converted 1-1000 PPM PPM to µS/cm for all of these 3 PPM scales. Here are the results, categorized in 3 PPM to µS/cm conversion charts (1st is for the US, 2nd is for Europe, 3rd is for Australia):

1. PPM To Microsiemens Per Centimer Conversion Chart (US PPM Scale)

In the US, we use a 500 PPM scale. Here is the conversion chart:

PPM US (Parts Per Million): µS/cm (Microsiemens Per Centimeter):
1 PPM 2 µS/cm
5 PPM 10 µS/cm
10 PPM 20 µS/cm
15 PPM 30 µS/cm
20 PPM 40 µS/cm
25 PPM 50 µS/cm
30 PPM 60 µS/cm
35 PPM 70 µS/cm
40 PPM 80 µS/cm
45 PPM 90 µS/cm
50 PPM 100 µS/cm
60 PPM 120 µS/cm
70 PPM 140 µS/cm
80 PPM 160 µS/cm
90 PPM 180 µS/cm
100 PPM 200 µS/cm
110 PPM 220 µS/cm
120 PPM 240 µS/cm
130 PPM 260 µS/cm
140 PPM 280 µS/cm
150 PPM 300 µS/cm
160 PPM 320 µS/cm
170 PPM 340 µS/cm
180 PPM 360 µS/cm
190 PPM 380 µS/cm
200 PPM 400 µS/cm
250 PPM 500 µS/cm
300 PPM 600 µS/cm
350 PPM 700 µS/cm
400 PPM 800 µS/cm
450 PPM 900 µS/cm
500 PPM 1000 µS/cm
550 PPM 1100 µS/cm
600 PPM 1200 µS/cm
650 PPM 1300 µS/cm
700 PPM 1400 µS/cm
750 PPM 1500 µS/cm
800 PPM 1600 µS/cm
850 PPM 1700 µS/cm
900 PPM 1800 µS/cm
950 PPM 1900 µS/cm
1000 PPM 2000 µS/cm

2. PPM To Microsiemens Per Centimer Conversion Chart (Europe PPM Scale)

In Europe and internationally, we use a 640 PPM scale. Here is the conversion chart:

PPM Europe (Parts Per Million): µS/cm (Microsiemens Per Centimeter):
1 PPM 1.56 µS/cm
5 PPM 7.81 µS/cm
10 PPM 15.63 µS/cm
15 PPM 23.44 µS/cm
20 PPM 31.25 µS/cm
25 PPM 39.06 µS/cm
30 PPM 46.88 µS/cm
35 PPM 54.69 µS/cm
40 PPM 62.50 µS/cm
45 PPM 70.31 µS/cm
50 PPM 78.13 µS/cm
60 PPM 93.75 µS/cm
70 PPM 109.38 µS/cm
80 PPM 125.00 µS/cm
90 PPM 140.63 µS/cm
100 PPM 156.25 µS/cm
110 PPM 171.88 µS/cm
120 PPM 187.50 µS/cm
130 PPM 203.13 µS/cm
140 PPM 218.75 µS/cm
150 PPM 234.38 µS/cm
160 PPM 250.00 µS/cm
170 PPM 265.63 µS/cm
180 PPM 281.25 µS/cm
190 PPM 296.88 µS/cm
200 PPM 312.50 µS/cm
250 PPM 390.63 µS/cm
300 PPM 468.75 µS/cm
350 PPM 546.88 µS/cm
400 PPM 625.00 µS/cm
450 PPM 703.13 µS/cm
500 PPM 781.25 µS/cm
550 PPM 859.38 µS/cm
600 PPM 937.50 µS/cm
650 PPM 1015.63 µS/cm
700 PPM 1093.75 µS/cm
750 PPM 1171.88 µS/cm
800 PPM 1250.00 µS/cm
850 PPM 1328.13 µS/cm
900 PPM 1406.25 µS/cm
950 PPM 1484.38 µS/cm
1000 PPM 1562.50 µS/cm

3. PPM To Microsiemens Per Centimer Conversion Chart (Australia PPM Scale)

In Australia, we use a 700 PPM scale. Here is the conversion chart:

PPM Australia (Parts Per Million): µS/cm (Microsiemens Per Centimeter):
1 PPM 1.43 µS/cm
5 PPM 7.14 µS/cm
10 PPM 14.29 µS/cm
15 PPM 21.43 µS/cm
20 PPM 28.57 µS/cm
25 PPM 35.71 µS/cm
30 PPM 42.86 µS/cm
35 PPM 50.00 µS/cm
40 PPM 57.14 µS/cm
45 PPM 64.29 µS/cm
50 PPM 71.43 µS/cm
60 PPM 85.71 µS/cm
70 PPM 100.00 µS/cm
80 PPM 114.29 µS/cm
90 PPM 128.57 µS/cm
100 PPM 142.86 µS/cm
110 PPM 157.14 µS/cm
120 PPM 171.43 µS/cm
130 PPM 185.71 µS/cm
140 PPM 200.00 µS/cm
150 PPM 214.29 µS/cm
160 PPM 228.57 µS/cm
170 PPM 242.86 µS/cm
180 PPM 257.14 µS/cm
190 PPM 271.43 µS/cm
200 PPM 285.71 µS/cm
250 PPM 357.14 µS/cm
300 PPM 428.57 µS/cm
350 PPM 500.00 µS/cm
400 PPM 571.43 µS/cm
450 PPM 642.86 µS/cm
500 PPM 714.29 µS/cm
550 PPM 785.71 µS/cm
600 PPM 857.14 µS/cm
650 PPM 928.57 µS/cm
700 PPM 1000.00 µS/cm
750 PPM 1071.43 µS/cm
800 PPM 1142.86 µS/cm
850 PPM 1214.29 µS/cm
900 PPM 1285.71 µS/cm
950 PPM 1357.14 µS/cm
1000 PPM 1428.57 µS/cm

We hope that the calculator and these 3 charts help you convert PPM to electrical conductivity (expressed in microsiemens per centimeter). If you need any help, you can use the comment section below, give us a few numbers, and we can do the math.

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