PPM to Percent

Welcome to ppm to percent, our website explaining the conversion of parts per million to percent. In the same way as percent means out of one hundred, does parts per million (ppm) express out of one million. Parts-per-million calculations are commonly used to measure chemical concentrations or contamination, but they can also been seen in the context of quality measurement. Next is our ppm to percent calculator, the formula can be found further below.

PPM to Percent Calculator

To use our calculator simply insert your value using a point as decimal separator, the math is done automatically. If you press the blue button, then the calculation changes to percent to ppm.

Change ppm to %


If you like our tool, then bookmark it now! It is worth noting that you can locate a great many parts per million to % conversions by using the search box in the menu or the sidebar.

On condition that x represents your particular value, insert, for example, x ppm to %. The opening result page contains a link to your particular transformation.

In the next part of our article, we are going to show you two calculation methods; one of them can even be employed without a calculator. Keep reading!

How to Convert PPM to Percentage

Here, we show you the math. One part per million is defined as 10-6, and one percent is defined as 10-2. In order to convert ppm to percent we make use of the aforementioned definitions:

From 1 ppm = 1/1000000 and 1% = 1/100 follows that 1% = 10000 parts per million. Thus, the parts per million to percent formula is:

% = ppm / 10000

To change ppm to percent divided the parts per million by ten thousand (method 1), or shift the decimal point four places to the left (method 2), then add the percent symbol.

  1. Method:

    For example: ppm = 150

    150 / 10000 = 0.015

    0.015 → 0.015%

    150 ppm = 0.015%

  2. Method:

    For example: ppm = 400

    400 → 40.0 → 4.0 → 0.4 → 0.04

    0.04 → 0.04%

    400 ppm = 0.04%

If you need more examples, check out our frequent conversions including the math in full detail:

By means of illustration:

Assumed a swimming pool has a capacity of 7,812.5 US gallons (29,573.5 Liters). In this case one ppm is approximately equal to one US fluid ounce (0.0295735 L).

You might also be keen on hearing that:

  • 1 µL/L equals 1 part per million
  • 1 ppm = 1000 ppb (parts per billion)
  • 1 mg per kg equals one ppm

Ahead you can find some additional information in the context, followed by the summary of our information, and finally our table with frequent conversions.

PPM to Percent Conversion

You have reached the concluding section of this page.

We have created this site to help our visitors converting ppm to %, both of which are widely used pseudo-units in technical disciplines, including, for instance, physics, chemistry, and engineering.

Therefore, it stands to reason that the transformation might be difficult for those who only have to change parts per million to % on an occasional basis.

This depiction wraps our content up:

ppm to percent

Note that both, parts per million as well as percent, are pure numbers without an associated unit of measurement. In other words, they are dimensionless.

You may also be interested in learning that our visitor have, among others, the following frequently asked questions related to the topic of this page:

  • How do you convert ppm to percent?
  • How to change ppm to percent?
  • How to convert ppm to percentage?

You should now be in the position to answer these FAQs easily. However, in case you have a question don’t hesitate getting in touch by email or by filling in the comment form at the bottom.

If you are happy with our information, then make sure to press the share buttons, and have a look at the related sites in the “recommended” section of our sidebar.

Finally, here’s our conversion table.

PPM to Percent Conversion Table

Parts Per MillionPercent
0 ppm0%
1 ppm0.0001%
2 ppm0.0002%
3 ppm0.0003%
4 ppm0.0004%
5 ppm0.0005%
6 ppm0.0006%
7 ppm0.0007%
8 ppm0.0008%
9 ppm0.0009%
10 ppm0.001%
20 ppm0.002%
30 ppm0.003%
40 ppm0.004%
50 ppm0.005%
60 ppm0.006%
70 ppm0.007%
80 ppm0.008%
90 ppm0.009%
100 ppm0.01%
200 ppm0.02%
300 ppm0.03%
400 ppm0.04%
500 ppm0.05%
600 ppm0.06%
700 ppm0.07%
800 ppm0.08%
900 ppm0.09%
1000 ppm0.1%
10000 ppm1%
100000 ppm10%
1000000 ppm100%

Last, but not least:

Observe that the parts-per notations including, but not limited to, parts-per-million, ppb (parts per billion) and ppt (parts per trillion) are not endorsed by the International System of Units.

The reason is that they are language-dependent and loaded with ambiguity:

For example, parts per billion, can mean either 10-9 (British English, short scale), or 10-12 (American English, long scale.)

Along the same vain, the abbreviation ppt usually means parts per trillion, but it may also denote parts per thousand. As such, the term ppt is ambiguous.

Instead, it is recommended employing scientific notation, explained in detail on the linked site.

Thanks for visiting PPM to Percent. Further Information about parts-per notation can be found on our friends from Wikipedia:

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