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Decimal Equivalents of Millimeter, Fractional and Number Drill Sizes

1mm = 0.03937 in.
1 cm = 0.03937 in.
1 dm = 3.937 in.
1 m = 39.37 in.
1 in. = 15.4 mm

1 foot = 0.3048 m
1 yd. = 0.9144 m
1 sq. in. = 6.452 sq. cm
1 sq. ft. = 929 sq. cm
1 sq. yd. = 0.8361 sq. m

1 sq. cm = 0.155 sq. in.
1 sq. dm = 15.5 sq. yd.
1 oz. = 31.1035 grams

1 lb. = 373.24 grams
1 qt. = 0.9463 liters (liquid)
1 gal. = 3.7853 liters (liquid)
1 liter = 1.0567 liquid qt.

Milli- Meter	Dec. Equiv.	Frac- tional	Num- ber
.1	.0039
.15	.0059
.2	.0079
.25	.0098
.3	.0118
....	.0135		80
.35	.0138
....	.0145		79
.39	.0156	1/64	..
.4	.0157
....	.0160		78
.45	.0177
....	.0180		77
.5	.0197
....	.0200		76
....	.0210		75
.55	.0217
....	.0225		74
.6	.0236
....	.0240		73
....	.0250		72
.65	.0256
....	.0260		71
....	.0280		70
.7	.0286
....	.0292		69
.75	.0295
....	.0310		68
.79	.0312	1/32	..
.8	.0315
....	.0320		67
....	.0330		66
.85	.0335
....	.0350		65
.9	.0354
....	.0360		64
....	.0370		63
.95	.0374
....	.0380		62
....	.0390		61
1.0	.0394
....	.0400		60
....	.0410		59
1.05	.0413
....	.0420		58
....	.0430		57
1.1	.0433
1.15	.0452
....	.0465		56
1.19	.0469	3/64	..
1.2	.0472
1.25	.0492
1.3	.0512
....	.0520		55
1.35	.0531
....	.0550		54
1.4	.0551
1.45	.0570
1.5	.0591
....	.0595		53
1.55	.0610
1.59	.0625	1/16	..
1.6	.0629
....	.0635		52
1.65	.0649
1.7	.0669
....	.0670		51

Milli- Meter	Dec. Equiv.	Frac- tional	Num- ber
1.75	.0689
....	.0700		50
1.8	.0709
1.85	.0728
....	.0730		49
1.9	.0748
....	.0760		48
1.95	.0767
1.98	.0781	5/64	..
....	.0785		47
2.0	.0787
2.05	.0807
....	.0810		46
....	.0820		45
2.1	.0827
2.15	.0846
....	.0860		44
2.2	.0866
2.25	.0885
....	.0890		43
2.3	.0905
2.35	.0925
....	.0935		42
2.38	.0937	3/32	..
2.4	.0945
....	.0960		41
2.45	.0964
....	.0980		40
2.5	.0984
....	.0995		39
....	.1015		38
2.6	.1024
....	.1040		37
2.7	.1063
....	.1065		36
2.75	.1082
2.78	.1094	7/64	..
....	.1100		35
2.8	.1102
....	.1110		34
....	.1130		33
2.9	.1141
....	.1160		32
3.0	.1181
....	.1200		31
3.1	.1220
3.18	.1250	1/8	..
3.2	.1260
3.25	.1279
....	.1285		30
3.3	.1299
3.4	.1338
....	.1360		29
3.5	.1378
....	.1405		28
3.57	.1406	9/64	..
3.6	.1417
....	.1440		27
3.7	.1457
....	.1470		26
3.75	.1476
....	.1495		25
3.8	.1496
....	.1520		24
3.9	.1535
....	.1540		23
3.97	.1562	5/32	..

Milli- Meter	Dec. Equiv.	Frac- tional	Num- ber
....	.1570		22
4.0	.1575
....	.1590		21
....	.1610		20
4.1	.1614
4.2	.1654
....	.1660		19
4.25	.1673
4.3	.1693
....	.1695		18
4.37	.1719	11/64	..
....	.1730		17
4.4	.1732
....	.1770		16
4.5	.1771
....	.1800		15
4.6	.1811
....	.1820		14
4.7	.1850		13
4.75	.1870
4.76	.1875	3/16	..
4.8	.1890		12
....	.1910		11
4.9	.1929
....	.1935		10
....	.1960		9
5.0	.1968
....	.1990		8
5.1	.2008
....	.2010		7
5.16	.2031	13/64	..
....	.2040		6
5.2	.2047
....	.2055		5
5.25	.2067
5.3	.2086
....	.2090		4
5.4	.2126
....	.2130		3
5.5	.2165
5.56	.2187	7/32	..
5.6	.2205
....	.2210		2
5.7	.2244
5.75	.2263
....	.2280		1
5.8	.2283
5.9	.2323
....	.2340		A
5.95	.2344	15/64	..
6.0	.2362
....	.2380		B
6.1	.2401
....	.2420		C
6.2	.2441
6.25	.2460		D
6.3	.2480
6.35	.2500	1/4	E
6.4	.2520
6.5	.2559
....	.2570		F
6.6	.2598
....	.2610		G
6.7	.2638
6.75	.2656	17/64	..
6.75	.2657
....	.2660		H

Milli- Meter	Dec. Equiv.	Frac- tional	Num- ber
6.8	.2677
6.9	.2716
....	.2720		I
7.0	.2756
....	.2770		J
7.1	.2795
....	.2811		K
7.14	.2812	9/32	..
7.2	.2835
7.25	.2854
7.3	.2874
....	.2900		L
7.4	.2913
....	.2950		M
7.5	.2953
7.54	.2968	19/64	..
7.6	.2992
....	.3020		N
7.7	.3031
7.75	.3051
7.8	.3071
7.9	.3110
7.94	.3125	5/16	..
8.0	.3150
....	.3160		O
8.1	.3189
8.2	.3228
....	.3230		P
8.25	.3248
8.3	.3268
8.33	.3281	21/64	..
8.4	.3307
....	.3320		Q
8.5	.3346
8.6	.3386
....	.3390		R
8.7	.3425
8.73	.3437	11/32	..
8.75	.3445
8.8	.3465
....	.3480		S
8.9	.3504
9.0	.3543
....	.3580		T
9.1	.3583
9.13	.3594	23/64	..
9.2	.3622
9.25	.3641
9.3	.3661
....	.3680		U
9.4	.3701
9.5	.3740
9.53	.3750	3/8	..
....	.3770		V
9.6	.3780
9.7	.3819
9.75	.3838
9.8	.3858
....	.3860		W
9.9	.3898
9.92	.3906	25/64	..
10.0	.3937
....	.3970		X
....	.4040		Y
10.32	.4062	13/32	..
....	.4130		Z
10.5	.4134

Milli- Meter	Dec. Equiv.	Frac- tional	Num- ber
10.72	.4219	27/64	..
11.0	.4330
11.11	.4375	7/16	..
11.5	.4528
11.51	.4531	29/64	..
11.91	.4687	15/32	..
12.0	.4724
12.30	.4843	31/64	..
12.5	.4921
12.7	.5000	1/2	..
13.0	.5118
13.10	.5156	33/64	..
13.49	.5312	17/32	..
13.5	.5315
13.89	.5469	35/64	..
14.0	.5512
14.29	.5625	9/16	..
14.5	.5709
14.68	.5781	37/64	..
15.0	.5906
15.08	.5937	19/32	..
15.48	.6094	39/64	..
15.5	.6102
15.88	.6250	5/8	..
16.0	.6299
16.27	.6406	41/64	..
16.5	.6496
16.67	.6562	21/32	..
17.0	.6693
17.06	.6719	43/64	..
17.46	.6875	11/16	..
17.5	.6890
17.86	.7031	45/64	..
18.0	.7087
18.26	.7187	23/32	..
18.5	.7283
18.65	.7344	47/64	..
19.0	.7480
19.05	.7500	3/4	..
19.45	.7656	49/64	..
19.5	.7677
19.84	.7812	25/32	..
20.0	.7874
20.24	.7969	51/64	..
20.5	.8071
20.64	.8125	13/16	..
21.0	.8268
21.03	.8281	53/64	..
21.43	.8437	27/32	..
21.5	.8465
21.83	.8594	55/64	..
22.0	.8661
22.23	.8750	7/8	..
22.5	.8858
22.62	.8906	57/64	..
23.0	.9055
23.02	.9062	29/32	..
23.42	.9219	59/64	..
23.5	.9252
23.81	.9375	15/16	..
24.0	.9449
24.21	.9531	61/64	..
24.5	.9646
24.61	.9687	31/32	..
25.0	.9843
25.03	.9844	63/64	..
25.4	1.0000	1	..

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