Parts per million calculator

Calculate mass concentration and parts per billion with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use mass concentration and parts per billion to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Component mass (mg)
5
Total mass (kg)
1
Mass concentration (ppm)
5
Parts per billion
5000

Try another scenario

Component mass (mg)
5.5
Total mass (kg)
1
Mass concentration (ppm)
5.5
Parts per billion
5500
Calculation method

Calculation method

Mass concentration (ppm)

a ÷ b

Parts per billion

a ÷ b × 1000

Symbols and units
a
Component mass (mg)
b
Total mass (kg)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • One milligram per kilogram is one ppm by mass. Do not substitute volume ratios without density information.
Are these inputs private?

These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

Further reading

Method reference ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

Share this page
Share this calculator

Leave unchecked to share the page without your entered values.