18 mm = 0.71 inches. Since the first measure is to 2 significant digits it is not appropriate to give the answer to several sig figs.
Direct Conversion Formula 18 mm*
1 in
25.4 mm
=
0.7086614173 in
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25 mm * 18mm = 0.98 inches * 0.71 inches.
Approximately 2/3 of an inch
18 millimeters = 0.708661417 inches Direct Conversion Formula 18 mm* 1 in 25.4 mm = 0.7086614173 in
0.70 inchesDirect Conversion Formula18mm*1 in25.4 mm=0.7086614173in
18 millimeters are 0.7086614173 inches.Direct Conversion Formula18 mm*1 in25.4 mm=0.7086614173in