Use ppm converter online free
Decimal, percent, permille, ppm, ppb, ppt conversion calculator
Concentration Unit Converter
Enter a value in any field to convert it to all other concentration units.
%
‰
ppm
ppb
ppt
About Concentration Units
Concentration units represent the amount of a substance in a mixture relative to the total amount. These units are commonly used in chemistry, environmental science, and many other fields.
Unit Relationships
| Unit | Symbol | Equivalent to |
|---|---|---|
| Decimal | (unitless) | Base unit (ratio) |
| Percent | % | 1% = 0.01 (decimal) |
| Permille | ‰ | 1‰ = 0.001 (decimal) |
| Parts Per Million | ppm | 1 ppm = 0.000001 (decimal) |
| Parts Per Billion | ppb | 1 ppb = 0.000000001 (decimal) |
| Parts Per Trillion | ppt | 1 ppt = 0.000000000001 (decimal) |
Common Applications
These concentration units are used in many fields:
- Water quality analysis (pollutants measured in ppm or ppb)
- Air quality monitoring (contaminants in ppm)
- Soil analysis (nutrients and contaminants)
- Pharmaceutical formulations (active ingredients)
- Financial calculations (interest rates in percent)
How to Use the Converter:
This converter allows you to convert between several units of measurement related to proportions, including decimal, percent, permille (‰), parts per million (ppm), parts per billion (ppb), and parts per trillion (ppt). Here’s how to use it:
Enter a Value:
- Enter a value in one of the input fields corresponding to the unit you want to convert from. For example, if you have a percentage, enter it in the “Enter percent” field.
Click Convert:
- After entering your value, click the “Convert” button next to the field you entered your value in. The converter will automatically calculate and fill in the equivalent values in all the other fields.
View the Results:
- The converted values will appear in the corresponding input fields. For example, if you entered a percentage, you’ll see the equivalent decimal, permille, ppm, ppb, and ppt values.
Reset:
- If you want to clear all the fields and start over, click the “Reset” button at the bottom of the converter.
Example Usage:
- If you enter
0.05in the “Enter decimal” field and click “Convert”, the converter will show:- Percent:
5% - Permille:
50‰ - PPM:
50000 ppm - PPB:
50000000 ppb - PPT:
50000000000 ppt
- Percent:
Applications of the Converter:
Environmental Science:
- The converter can be used in environmental science to measure the concentration of pollutants in air, water, or soil. For example, ppm is often used to measure the concentration of CO2 in the atmosphere.
Chemistry:
- In chemistry, the converter is useful for calculating concentrations of solutions. For instance, you might need to convert the concentration of a solution from a percentage to ppm for certain calculations or lab work.
Health & Safety:
- The converter is valuable in occupational health to ensure safety standards. For example, converting pollutant concentrations from ppb to ppm helps determine if the levels are within safe limits for exposure.
Engineering:
- In various engineering fields, particularly in materials science and chemical engineering, converting between different concentration units is crucial for designing processes and materials.
Quality Control:
- Industries like pharmaceuticals or food production use these conversions for quality control to ensure that the concentration of ingredients or contaminants meets regulatory standards.
