Measure Weight
Select the starting and target units, then apply the corresponding conversion factor. The calculator handles the arithmetic for you.
Formula: Converted value = input value Γ conversion factor
Conversion factors are directional: multiply when the factor is stated as output per input, and divide when the relationship is stated the other way around.
A quick sanity check is to convert a round value such as 1, 10, or 100 and confirm that the magnitude moves in the expected direction.