My favorite metric tape is an older Starrett electronic tape measure that you can switch between metric & imperial. At the push of a mode button you can continually scroll between measurement methods.

Front measuring inch mode in fractions

Front measuring tenths of an inch mode

Front measuring hundredths of a foot mode

Front measuring centimeters mode

Here in the rear measuring mode it's already added in the 3 1/2" width/depth of the tape measure case.

And if there is any time where you are not physically able to read the display you push the red button and it locks in the measurement you just made.
