Metric drill sizes chart

Find decimal-inch equivalents for metric drill sizes from 0.38 mm to 25 mm. This easy-to-read chart helps match any metric drill to its exact decimal inch size.

Metric drill sizes chart
DrillDecimal
.38mm.0150
.40mm.0157
.42mm.0165
.45mm.0177
.48mm.0189
.50mm.0197
.55mm.0217
.60mm.0236
.65mm.0256
.70mm.0276
.75mm.0295
.80mm.0315
.85mm.0335
.90mm.0354
.95mm.0374
1.00mm.0394
1.05mm.0413
1.10mm.0433
1.15mm.0453
1.20mm.0472
1.25mm.0492
1.30mm.0512
1.35mm.0531
1.40mm.0551
1.45mm.0571
1.50mm.0591
1.55mm.0610
1.60mm.0630
1.65mm.0650
1.70mm.0669
1.75mm.0689
1.80mm.0709
1.85mm.0728
1.90mm.0748
1.95mm.0768
2.00mm.0787
2.05mm.0807
2.10mm.0827
2.15mm.0846
2.20mm.0866
2.25mm.0886
2.30mm.0906
2.35mm.0925
2.40mm.0945
2.45mm.0965
2.55mm.1004
2.60mm.1024
2.65mm.1043
2.70mm.1063
2.75mm.1083
2.80mm.1102
2.90mm.1142
3.00mm.1181
3.10mm.1220
3.20mm.1260
3.25mm.1280
3.30mm.1299
3.40mm.1339
3.50mm.1378
3.60mm.1417
3.70mm.1457
3.75mm.1476
3.80mm.1496
3.90mm.1535
4.00mm.1575
4.10mm.1614
4.20mm.1654
4.25mm.1673
4.30mm.1693
4.40mm.1732
4.50mm.1772
4.60mm.1811
4.70mm.1850
4.75mm.1870
4.80mm.1890
4.90mm.1929
5.00mm.1969
5.10mm.2008
5.20mm.2047
5.25mm.2067
5.30mm.2087
5.40mm.2126
5.50mm.2165
5.60mm.2205
5.70mm.2244
5.75mm.2264
5.80mm.2283
5.90mm.2323
6.00mm.2362
6.10mm.2402
6.25mm.2461
6.30mm.2480
6.40mm.2520
6.50mm.2559
6.60mm.2598
6.70mm.2638
6.75mm.2657
6.80mm.2677
6.90mm.2717
7.00mm.2756
7.10mm.2795
7.20mm.2835
7.25mm.2854
7.30mm.2874
7.40mm.2913
7.50mm.2953
7.60mm.2992
7.70mm.3031
7.75mm.3051
7.80mm.3071
7.90mm.3110
8.00mm.3150
8.10mm.3189
8.20mm.3228
8.25mm.3248
8.30mm.3268
8.40mm.3307
8.50mm.3346
8.60mm.3386
8.70mm.3425
8.75mm.3445
8.80mm.3465
8.90mm.3504
9.00mm.3543
9.10mm.3583
9.20mm.3622
9.25mm.3642
9.30mm.3661
9.40mm.3701
9.50mm.3740
9.60mm.3780
9.70mm.3819
9.75mm.3839
9.80mm.3858
9.90mm.3898
10.20mm.4016
10.50mm.4134
10.80mm.4252
11.00mm.4331
11.20mm.4409
11.50mm.4528
11.80mm.4646
12.00mm.4724
12.20mm.4803
12.50mm.4921
13.00mm.5118
13.50mm.5315
14.00mm.5512
14.50mm.5709
15.00mm.5906
15.50mm.6102
16.00mm.6299
16.50mm.6496
17.00mm.6693
17.50mm.6890
18.00mm.7087
18.50mm.7283
19.00mm.7480
19.50mm.7677
20.00mm.7874
20.50mm.8071
21.00mm.8268
21.50mm.8465
22.00mm.8661
22.50mm.8858
23.00mm.9055
23.50mm.9252
24.00mm.9449
24.50mm.9646
25.00mm.9843