Dennis' End-All Conversion Table
Wood Stock	Styrene Stock	Nearest fraction	Decimal	mm	HO Inches	HO Inches	HO Feet	Drill	AWG (Wire)	Wood Pilot	Tap	Machine
	0.010	1/100	0.010	0.3	8/9	0.9	0.074		30
		~ 1/100	0.011	0.3	1	1.0	0.083							HO:Metric Convesion Factors
			0.130	3.3				80	28					3.5	mm	=	1	HO ft
	0.015	~ 1/64	0.015	0.4	1   1/3	1.3	0.111	79						1	mm	=	0.286	HO ft
1/64		1/64	0.016	0.4	1  7/18	1.4	0.116	78	26					0.292	mm	=	1.000	HO in.
	0.020	1/50	0.020	0.5	1  7/9	1.8	0.148	76	24					Metric:Decimal Conversion Factors
			0.023	0.6	2	2.0	0.167	74						25.4	mm	=	1	in
	0.025	1/40	0.025	0.6	2   6/25	2.2	0.187	72	22					2.54	mm	=	0.1	in
			0.028	0.7				70		0				0.254	mm	=	0.01	in
	0.030	~1/32	0.030	0.8	2   5/8	2.6	0.219							1	mm	=	0.039	in
1/32		1/32	0.031	0.8	2  7/9	2.8	0.232	68						3.5	mm	=	0.138	in
			0.032	0.8				67	20
			0.033	0.8				66		1
			0.034	0.9	3	3.0	0.250								HO Inches	HO feet	mm
			0.037	0.9				63				00-90			1	0.08	0.29
			0.039	1.0	3  1/2	3.5	0.292	61							2	0.17	0.58
	0.040	1/25	0.040	1.0	3  5/9	3.6	0.296	60							3	0.25	0.88
			0.041					59	18						4	0.33	1.17
			0.042					58							5	0.42	1.46
			0.046	1.2	4	4.0	0.333								6	0.50	1.75
		3/64	0.047					56		2					7	0.58	2.04
	0.050	1/20	0.050	1.3	4   3/8	4.4	0.365								8	0.67	2.33
			0.051						16						9	0.75	2.63
			0.052					55			00-80	00-90			10	0.83	2.92
			0.055					54		3					11	0.92	3.21
			0.057	1.5	5	5.0	0.417								12	1.00	3.50
	0.060	~1/16	0.060	1.5	5  1/3	5.3	0.445	53			1-72
1/16		1/16	0.063	1.6	5  5/9	5.6	0.463								mm	Dec. Inches	HO feet
			0.064					52		4					1.000	0.03937	0.286
			0.065						14						2.000	0.07874	0.571
			0.067					51				0-80			3.000	0.11811	0.857
		2/29	0.069	1.8	6	6.0	0.500								4.000	0.15748	1.143
			0.070					50			2-56				5.000	0.19685	1.429
			0.073					49		5					6.000	0.23622	1.714
5/64		5/64	0.078	2.0	6 69/73	6.9	0.579								7.000	0.27559	2.000
			0.079	2.0	7	7.0	0.583	47		6		1-72			8.000	0.31496	2.286
	0.080	~5/64	0.080	2.0	7  1/9	7.1	0.593								9.000	0.35433	2.571
			0.080	2.0	7	7.0	0.583								10.000	0.39370	2.857
			0.081					46	12		3-48				11.000	0.43307	3.143
			0.089					43			4-40				12.000	0.47244	3.429
			0.092	2.3	8	8.0	0.667
3/32		3/32	0.094	2.4	8  1/3	8.3	0.695	42				2-56
	0.100	1/10	0.100	2.5	8 81/91	8.9	0.741	39
			0.103	2.6	9	9.0	0.750								CALCULATOR
			0.115	2.9	10	10.0	0.833									Fraction	Dec.
			0.118	3.0	10  1/2	10.5	0.875									3/16	0.188
			0.020					31				4-40				1/8	0.125
1/8	0.125	1/8	0.125	3.2	11  9/80	11.1	0.926
			0.126	3.2	11	11.0	0.917								scale ft	mm	Actual In.
			0.138	3.5	12	12.0	1.000								1	3.5	0.14
5/32	0.156	5/32	0.156	4.0	13 33/38	13.9	1.156
3/16		3/16	0.188	4.8	16  2/3	16.7	1.389								9.98	4.813	1.375
	0.188	~3/16	0.188	4.8	16  5/7	16.7	1.393
			0.197	5.0	17  1/2	17.5	1.458								4	14.000	0.55
7/32		7/32	0.219	5.6	19 21/47	19.4	1.621
			0.236	6.0	21	21.0	1.750								1.14	4.000	0.551
1/4	0.250	1/4	0.250	6.4	22  9/40	22.2	1.852
			0.276	7.0	24	24.0	2.000
	0.312	~5/16	0.312	7.9	27 14/19	27.7	2.311								Yellow = entry
5/16		5/16	0.313	7.9	27 25/32	27.8	2.315								Green = computation
			0.315	8.0	28	28.0	2.333								Red = conversion factor
			0.354	9.0	31  1/2	31.5	2.625
3/8	0.375	3/8	0.375	9.5	33 27/80	33.3	2.778
			0.394	10.0	35	35.0	2.917
			0.413	10.5	36	36.0	3.000
7/16		7/16	0.438	11.1	38 42/47	38.9	3.241
	0.438	~ 7/ 16	0.438	11.1	38 91/97	38.9	3.245
1/2	0.500	1/2	0.500	12.7	44  9/20	44.5	3.704
			0.551	14.0	48	48.0	4.000
9/16		9/16	0.563	14.3	50	50.0	4.167
			0.689	17.5	60	60.0	5.000
3/4		3/4	0.750	19.1	66 27/40	66.7	5.556
			0.827	21.0	72	72.0	6.000
			0.965	24.5	84	84.0	7.000
1		1	1.000	25.4	88  9/10	88.9	7.408
			1.102	28.0	96	96.0	8.000
			1.240	31.5	108	108.0	9.000											DRS 2/2016
			1.378	35.0	120	120.0	10.000											Central Rockies Rail Road