Decimal Equivalents

English/Metric/Decimal Equivalent estimator *Fractional Metric * Wire * Letter Sizes**
English	Metric	Decimal	English	Metric	Decimal	English	Metric	Decimal	English	Metric	Decimal

..	.1	.0039	45	..	.0820	5	..	.2055	7/16	..	.4375
	.2	.0079	44	..	.0860	4	..	.2090	29/64	..	.4531
..	.3	.0118	43	..	.0890	3	..	.2130	15/32	..	.4687
80	..	.0135	42	..	.0935	7/32	.	.2187	..	12.	.4724
79	.	.0145	3/32	..	.0937	2	..	.2210	31/64	..	.4844
1/64	..	.0156	41	..	.0960	1	..	.2280	1/2	..	.5000
..	.4	.0157	40	..	.0980	A	..	.2340	..	13.	.5118
78	.	.0160	39	..	.0995	15/64	..	.2344	33/64	..	.5156
77	.	.0180	38	..	.1015	..	6.	.2362	17/32	..	.5312
.	.5	.0197	37	..	.1040	B	..	.2380	35/64	.	.5469
76	.	.0200	36	..	.1065	C	..	.2420	..	14.	.5512
75	.	.0210	7/64	..	.1094	D	..	.2460	9/16	..	.5625
74		.0225	35	..	.1100	1/4	..	.2500	37/64	..	.5781
.	.6	.0236	34	..	.1110	F	..	.2570	..	15.	.5906
73	..	.0240	33	..	.1130	G	..	.2610	19/32	..	.5937
72	..	.0250	32	..	.1160	17/64	..	.2656	39/64	..	.6094
71	..	.0260	..	3.	.1181	H	..	.2660	5/8	..	.6250
..	.7	.0276	31	..	.1200	I	..	.2720	..	16.	.6299
70	..	.0280	1/8	..	.1250	..	7.	.2756	41/64	..	.6406
69	..	.0292	30	..	.1285	J	..	.2770	21/32	..	.6562
68	..	.0310	29	..	.1360	K	..	.2810	..	17.	.6693
1/32	..	.0312	28	..	.1405	9/32	..	.2812	43/64	..	.6719
..	.8	.0315	9/64	..	.1406	L	..	.2900	11/16	..	.6875
67	..	.0320	27	..	.1440	M	..	.2950	45/64	..	.7031
66	..	.0330	26	.	.1470	19/64	..	.2969	..	18.	.7087
65	..	.0350	25	..	.1495	N	..	.3020	23/32	..	.7187
.	.9	.0354	24	..	.1520	5/16	..	.3125	47/64	..	.7344
64	..	.0360	23	..	.1540	..	8.	.3150	..	19.	.7480
63	..	.0370	5/32	.	.1562	O	..	.3160	3/4	..	.7500
62	..	.0380	22	..	.1570	P	..	.3230	49/64	..	.7656
61	..	.0390	..	4.	.1575	21/64	..	.3281	25/32	..	.7812
..	1.	.0394	21	..	.1590	Q	..	.3320	..	20.	.7874
60	..	.0400	20	..	.1610	R	..	.3390	51/64	..	.7969
59	..	.0410	19	..	.1660	11/32	..	.3437	13/16	..	.8125
58	..	.0420	18	.	.1695	S	..	.3480	..	21.	.8268
57	.	.0430	11/64	..	.1719	..	9.	.3543	53/64	..	.8281
56	..	.0465	17	..	.1730	T	..	.3580	27/32	..	.8437
3/64	..	.0469	16	..	.1770	23/64	..	.3594	55/64	..	.8594
55	..	.0520	15	..	.1800	U	..	.3680	..	22.	.8661
54	..	.0550	14	..	.1820	3/8	..	.3750	7/8	..	.8750
53	..	.0595	13	..	.1850	V	…	.3770	57/64	..	.8906
1/16	.	.0625	3/16	..	.1875	W	..	.3860	..	23.	.9055
52	..	.0635	12	..	.1890	25/64	..	.3906	29/32	..	.9062
51	..	.0670	11	..	.1910	..	10.	.3937	59/64	..	.9219
50	..	.0700	10	..	.1935	X	..	.3970	15/16	..	.9375
49	.	.0730	9	..	.1960	Y	.	.4040	..	24.	.9449
48	..	.0760	..	5.	.1968	13/32	..	.4062	61/64	..	.9531
5/64	..	.0781	8	..	.1990	Z	..	.4130	31/32	..	.9687
47	..	.0785	7	..	.2010	27/64	..	.4219	..	25.	.9842
..	2.	.0787	13/64	..	.2031	..	11.	.4331	63/64	..	.9844
46	..	.0810	6	..	.2040				1	25.4	1.000