ConvertPlus extends the built in Google Sheets function "CONVERT" which allows conversion of one quantity (number with a unit of measure) to another unit of measure. ConvertPlus extends this functionality by adding: * More units * Explicit pre-fixes that can be added to any unit (e.g. [m]m, [c]m, [k]m) * Ability to use compond units (e.g. "mi/hr" "k[g] m / s^2") * Functions for adding, subtracting, multiplying, dividing, raising power of and comparing equality of quantities * Ability to chain together all functions to avoid multiple cell calculations