Millimeter to Inch Chart

MM

Approximate Size In Fractional Inches

Size In Decimal Inches

1mm

1/32 inch

0.039

2mm

1/16 inch

0.078

3mm

3/32 inch

0.118

4mm

1/8 inch

0.157

5mm

3/16 inch

0.196

6mm

slightly less than 1/4 inch

0.236

7mm

slightly more than 1/4 inch

0.275

8mm

5/16 inch

0.314

9mm

slightly less than 3/8 inch

0.354

10mm

slightly more than 3/8 inch

0.393

11mm

7/16 inch

0.433

12mm

slightly less than 1/2 Inch

0.472

13mm

slightly more than 1/2 Inch

0.511

14mm

9/16 Inch

0.551

15mm

slightly less than 5/8 Inch

0.590

16mm

5/8 Inch

0.629

17mm

slightly less than 11/16 Inch

0.669

18mm

slightly less than 3/4 Inch

0.708

19mm

about 3/4 Inch

0.748

20mm

slightly less than 13/16 Inch

0.787

21mm

slightly more than 13/16 Inch

0.826

22mm

slightly less than 7/8 Inch

0.866

23mm

slightly more than 7/8 Inch

0.905

24mm

15/16 Inch

0.944

25mm

about 1 Inch

0.983

26mm

about 1- 1/32 inch

1.025

27mm

about 1- 1/16 inch

1.063

28mm

about 1- 1/8 inch

1.1024

29mm

about 1- 5/32

1.141

30mm

about 1 3/16 inch

1.1811

31mm

about 1- 7/32 inch

1.220

32mm

slightly more than 1- 1/4 inch

1.260

33mm

about 1- 5/16 inch

1.300

34mm

about 1- 11/32 inch

1.339