Metric Project Calculator, Length 120mm, Width 75mm, Depth 10mm, Display Digits 11, Display LCD, Display Dimensions 15 x 55mm, Solve Square-Up Diagonals Using Square Root for Truer Construction. Find The Number of Studs Needed for A Wall. Use Default On-Center Spacing (400mm) or Store A Custom Setting. Find The Number of Tiles for An Area. 9 of The Most Popular Metric Tiles Are Built-In.