In Map Chart, distance is displayed when marking using the radius (circle) option.
Using Imperial unit system, it is observed that distances greater than 7800 feet is automatically rounded to 2 miles (10560 feet), even though there's a wide gap between the two values.
Using Metric unit system, distances are displayed up to 9999 meter, before being rounder to 10 kilometer, which is desired; however, after reaching this value, it'd be ideal to be able to show at least one decimal places - i.e., 10.4 kilometer. Currently, it's rounded as integer.
Exploring the Tools > Options > Map Chart section doesn't show any relevant setting to correct the above.