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DECIMAL EQUIVALENTS
Consecutive listing of drill sizes from #80 to 1 inch stocked by
VICTOR MACHINERY EXCHANGE, INC.
DRILL SIZE DECIMAL EQUIVALENT
#80
.0135"
#79
.0145
1/64"
.0156
#78
.0160
#77
.0180
#76
.0200
#75
.0210
#74
.0225
#73
.0240
#72
.0250
#71
.0260
#70
.0280
#69
.0292
#68
.0310
1/32"
.0313
.80mm
.0315
#67
.0320
#66
.0330
.85mm
.0335
#65
.0350
.90mm
.0354
#64
.0360
#63
.0370
.95mm
.0374
#62
.0380
#61
.0390
1.00mm
.0394
#60
.0400
#59
.0410
1.05mm
.0413
#58
.0420
#57
.0430
1.10mm
.0433
1.15mm
.0453
#56
.0465
3/64"
.0469
1.20mm
.0472
1.25mm
.0492
1.30mm
.0512
#55
.0520
1.35mm
.0531
#54
.0550
1.40mm
.0551
1.45mm
.0571
1.50mm
.0591
#53
.0595
1.55mm
.0610
1/16"
.0625
1.60mm
.0630
#52
.0635
1.65mm
.0650
1.70mm
.0669
#51
.0670
1.75mm
.0689
#50
.0700
1.80mm
.0709
1.85mm
.0728
#49
.0730
1.90mm
.0748
#48
.0760
1.95mm
.0768
5/64"
.0781
#47
.0785
2.00mm
.0787
2.05mm
.0807
#46
.0810
#45
.0820
2.10mm
.0827
2.15mm
.0846
#44
.0860
2.20mm
.0866
2.25mm
.0886
#43
.0890
2.30mm
.0906
2.35mm
.0925
#42
.0935
3/32"
.0938
2.40mm
.0945
#41
.0960
2.45mm
.0965
#40
.0980
2.50mm
.0984
#39
.0995
2.55mm
.1004
#38
.1015
2.60mm
.1024
#37
.1040
2.65mm
.1043
2.70mm
.1063
#36
.1065
2.75mm
.1083
7/64"
.1094
#35
.1100
2.80mm
.1102
#34
.1110
2.85mm
.1122
#33
.1130
2.90mm
.1142
#32
.1160
2.95mm
.1161
3.00mm
.1181
#31
.1200
3.10mm
.1220
3.15mm
.1240
1/8"
.1250
3.20mm
.1260
3.25mm
.1280
#30
.1285
3.30mm
.1299
3.40mm
.1339
#29
.1360
3.50mm
.1378
#28
.1405
9/64"
.1406
3.60mm
.1417
#27
.1440
3.70mm
.1457
#26
.1470
3.75mm
.1476
#25
.1495
3.80mm
.1496
#24
.1520
3.90mm
.1535
#23
.1540
5/32"
.1562
#22
.1570
4.00mm
.1575
#21
.1590
#20
.1610
4.10mm
.1614
4.20mm
.1654
#19
.1660
4.25mm
.1673
4.30mm
.1693
#18
.1695
11/64"
.1719
#17
.1730
4.40mm
.1732
#16
.1770
4.50mm
.1772
#15
.1800
4.60mm
.1811
#14
.1820
#13
.1850
4.70mm
.1850
4.75mm
.1870
3/16"
.1875
#12
.1890
4.80mm
.1890
#11
.1910
4.90mm
.1929
#10
.1935
#9
.1960
5.00mm
.1969
#8
.1990
5.10mm
.2008
#7
.2010
13/64"
.2031
#6
.2040
5.20mm
.2047
#5
.2055
5.25mm
.2067
5.30mm
.2087
$4
.2090
5.40mm
.2126
#3
.2130
5.50mm
.2165
7/32"
.2188
5.60mm
.2205
#2
.2210
5.70mm
.2244
5.75mm
.2264
#1
.2280
5.80mm
.2283
DRILL SIZE DECIMAL EQUIVALENT
5.90mm
.2323
A
.2340
15/64"
.2344
6.00mm
.2362
B
.2380
6.10mm
.2402
C
.2420
6.20mm
.2441
D
.2460
6.25mm
.2461
6.30mm
.2480
1/4"
.2500
E
.2500
6.40mm
.2520
6.50mm
.2559
F
.2570
6.60mm
.2598
G
.2610
6.70mm
.2638
17/64"
.2656
6.75mm
.2657
H
.2660
6.80mm
.2677
6.90mm
.2717
I
.2720
7.00mm
.2756
J
.2770
7.10mm
.2795
K
.2810
9/32"
.2812
7.20mm
.2835
7.25mm
.2854
7.30mm
.2874
L
.2900
7.40mm
.2913
M
.2950
7.50mm
.2953
19/64"
.2969
7.60mm
.2992
N
.3020
7.70mm
.3031
7.80mm
.3071
7.90mm
.3110
5/16"
.3125
8.00mm
.3150
O
.3160
8.10mm
.3189
8.20mm
.3228
P
.3230
8.25mm
.3248
8.30mm
.3268
21/64"
.3281
8.40mm
.3307
Q
.3320
8.50mm
.3346
8.60mm
.3386
R
.3390
8.70mm
.3425
11/32"
.3438
8.75mm
.3445
8.80mm
.3465
S
.3480
8.90mm
.3504
9.00mm
.3543
T
.3580
9.10mm
.3583
23/64"
.3594
9.20mm
.3622
9.25mm
.3642
9.30mm
.3661
U
.3680
9.40mm
.3701
9.50mm
.3740
3/8"
.3750
V
.3770
9.60mm
.3780
9.70mm
.3819
9.75mm
.3839
9.80mm
.3858
W
.3860
9.90mm
.3898
25/64"
.3906
10.00mm
.3937
X
.3970
10.10mm
.3976
10.20mm
.4016
10.25mm
.4035
Y
.4040
10.30mm
.4055
13/32"
.4062
10.40mm
.4094
Z
.4130
10.50mm
.4134
10.60mm
.4173
10.70mm
.4213
27/64"
.4219
10.80mm
.4252
10.90mm
.4291
11.00mm
.4331
11.10mm
.4370
7/16"
.4375
11.20mm
.4409
11.25mm
.4429
11.30mm
.4449
11.40mm
.4488
11.50mm
.4528
29/64"
.4531
11.60mm
.4567
11.70mm
.4606
11.75mm
.4626
11.80mm
.4646
11.90mm
.4685
15/32"
.4688
12.00mm
.4724
31/64"
.4844
12.50mm
.4921
1/2"
.5000
13.00mm
.5118
33/64"
.5156
17/32"
.5313
13.50mm
.5315
35/64"
.5469
14.00mm
.5512
9/16"
.5625
14.50mm
.5709
37/64"
.5781
15.00mm
.5906
19/32"
.5938
39/64"
.6094
15.50mm
.6102
5/8"
.6250
16.00mm
.6299
41/64"
.6406
16.50mm
.6496
21/32"
.6562
17.00mm
.6693
43/64"
.6719
11/16"
.6875
17.50mm
.6890
45/64"
.7031
18.00mm
.7087
23/32"
.7188
18.50mm
.7283
47/64"
.7344
19.00mm
.7480
3/4"
.7500
49/64"
.7656
19.50mm
.7677
25/32"
.7812
20.00mm
.7874
51/64"
.7969
20.50mm
.8071
13/16"
.8125
21.00mm
.8268
53/64"
.8281
27/32"
.8438
21.50mm
.8465
55/64"
.8594
22.00mm
.8661
7/8"
.8750
22.50mm
.8858
57/64"
.8906
23.00mm
.9055
29/32"
.9062
59/64"
.9219
23.50mm
.9252
15/16"
.9375
24.00mm
.9449
61/64"
.9531
24.50mm
.9646
31/32"
.9688
25.00mm
.9843
63/64"
.9844
1"
1.000