Convert Dimensions Dialog Box (Add-On)

Use Document > Annotation > Secondary Dimensions > Convert Dimensions to open this dialog box.
Convert to: Choose the desired dimension unit from the list.
Decimals: Enter the number of decimal places to include in each dimension.
Hide Zero Wholes: Check this box to suppress whole zero values:
Hide Zero Decimals: Check this box to hide any zeros at the end of the decimal dimension, regardless of the number of decimal places you set in the Decimals popup above.
Display of Zero Feet & Inches: This section has four pairs of radio buttons. For each pair, choose the option you prefer for displaying dimensions that measure either zero feet or zero inches.