One meter, eight feet and eight inches.

"Modern size" seems inappropriate. I think you mean the city ruler.

1 city ruler = 0.333m, and the city system units are all decimal, 1 city ruler = 10 city inch.

1 ft = 30.48cm, 1 in = 2.54cm,

1 foot = 12 inch, 1 inch =8 minutes.

To sum up:1.8m = 5ft 4 in = 5ft 1 1 in.

Another meter = meters

These can be found at the back of the dictionary.