Parts Per Converter

The Parts Per Converter on Calcify helps you convert concentration units like ppm (parts per million), ppb (parts per billion), and ppt (parts per trillion). These tiny ratios are used in chemistry, water quality testing, air pollution reports, lab analysis, and food safety. Manually converting between ppm and ppb can be confusing because the numbers get very large or very small — this tool handles that math for you and gives a clean answer.

For example, if a water test result says a substance is present at 0.005% and you need to express that in ppm for reporting or compliance, you can enter the value and immediately convert it. That helps you stay consistent across lab notes, environmental reports, and safety documentation. Use the Parts Per Converter to translate between ppm, ppb, and related measurement units with confidence, and try more science and engineering tools on Calcify for accurate calculations.