Fraction

Decimal

Millimeter

  1/64

0.016

0.397

  1/32

0.031

0.794

  3/64

0.047

1.191

  1/16

0.063

1.588

  5/64

0.078

1.984

  3/32

0.094

2.381

  7/64

0.109

2.778

  1/8

0.125

3.175

  9/64

0.141

3.572

  5/32

0.156

3.969

 11/64

0.172

4.366

  3/16

0.188

4.763

 13/64

0.203

5.159

  7/32

0.219

5.556

 15/64

0.234

5.953

  1/4

0.250

6.350

 17/64

0.266

6.747

  9/32

0.281

7.144

 19/64

0.297

7.541

  5/16

0.313

7.938

 21/64

0.328

8.334

 11/32

0.344

8.731

 23/64

0.359

9.128

  3/8

0.375

9.525

 25/64

0.391

9.922

 13/32

0.406

10.319

 27/64

0.422

10.716

  7/16

0.438

11.113

 29/64

0.453

11.509

 15/32

0.469

11.906

 31/64

0.484

12.303

  1/2

0.500

12.700

 33/64

0.516

13.097

 17/32

0.531

13.494

 35/64

0.547

13.891

  9/16

0.563

14.288

 37/64

0.578

14.684

 19/32

0.594

15.081

 39/64

0.609

15.478

  5/8

0.625

15.875

 41/64

0.641

16.272

 21/32

0.656

16.669

 43/64

0.672

17.066

 11/16

0.688

17.463

 45/64

0.703

17.859

 23/32

0.719

18.256

 47/64

0.734

18.653

  3/4

0.750

19.050

 49/64

0.766

19.447

 25/32

0.781

19.844

 51/64

0.797

20.241

 13/16

0.813

20.638

 53/64

0.828

21.034

 27/32

0.844

21.431

 55/64

0.859

21.828

  7/8

0.875

22.225

 57/64

0.891

22.622

 29/32

0.906

23.019

 59/64

0.922

23.416

 15/16

0.938

23.813

 61/64

0.953

24.209

 31/32

0.969

24.606

 63/64

0.984

25.003

1    

1.000

25.400