Degree, minute, and second precisions

degree-precisions.txt

degrees

1 - 111.132km
0.1 - 11.1132km
0.01 - 1.11132km
0.001 - 111.132m
0.0001 - 11.1132m
0.00001 - 1.11132m
0.000001 - 11.1132cm
0.0000001 - 1.11132cm
0.00000001 - 1.11132mm
0.000000001 - 0.111132mm

minutes

1 -  1,852.2m
0.1 - 185.22m
0.01 - 18.522m
0.001 - 1.8522m
0.0001 - 18.522cm
0.00001 - 1.8522cm
0.000001 - 1.8522mm
0.0000001 - 0.18522mm

seconds

1 - 30.87m
0.1 - 3.87m
0.01 - 38.7cm
0.001 - 3.87cm
0.0001 - 3.87mm
0.00001 - 0.387mm

assuming 111.132km of degree length, as for a degree of latitude at 45° latitude

so for better than 25cm precision...

0.000001 degrees (11.1132cm)
0.0001 minutes (18.522cm)
0.001 seconds (3.87cm)