Percent & parts per million converter
Percent & parts per million converter: use value, from, to. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
Result = value × source unit factor ÷ target unit factor
Variables & units
- Value
- Numeric value · minimum -1000000000000, maximum 1000000000000
- From
- Select an option
- To
- Select an option
Worked example
Choose the source and destination units, then enter a value.
Assumptions
ppt means parts per trillion here. ppm is a ratio; conversion to mg/L also needs solution density.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
Use the default input values to find the answer. The reset icon restores those values.
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