How to Convert MV to PPM


A millivolt, or mV, is a unit of measurement equal to one-thousandth of a volt. Ppm refers to parts per million, and is a way to describe dilute concentrations of a substance -- usually in soil or water. Converting between one unit and another poses challenges by hand, because of the miniscule decimals involved; one millivolt is equal to 11.000000e-03 PPM. An online calculator can help you convert between the two units in a snap.

  • Navigate to the Free University's Conversion of Units Calculator.

  • Scroll down to mV in the "From" scroll box and then click "mV."

  • Scroll down to the "To" scroll box and then click "ppm."

  • Type the number of mV you want to convert into the "From" text box and then click "Submit." The result will appear on the first line in a new page. For example, 99 mV converted to ppm results in 9.900000e-02.

Tips & Warnings

  • You can also use a regular calculator for the conversion. Multiply the number of mV by 1.000000e-03.


  • Photo Credit Creatas Images/Creatas/Getty Images
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