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Unit Conversion Table

Mass Units Volume Units
kilogram, kg liter, 1
gram, g milliliter, ml
milligram, mg microliter, µl
microgram, µg nanoliter, nl
nanogram, ng picoliter, pl

Each new line in the table is a difference of 1000 from the line above or below.

  • a difference of 2 lines is equal to parts per million (ppm)
  • a difference of 3 lines is equal to parts per billion (ppb)
  • a difference of 4 lines is equal to parts per triillion (ppt)


nanogram per milligram = ppm

nanogram per milliliter = ppb

nanogram per kilogram = ppt


Click here for an interactive measurements conversion calculator


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