IPMS San Diego - Scale Converter

SCALE CONVERTER

Convert scale to scale without units

Value	From Scale	To Scale	Result
	1/ Â	1/

Convert 1:1 scale and units

1:1 Scale Value	From Units	To Scale	To Units	Result
		1/

Common hobby drill sizes by number, inches, and millimeters

Drill Number	Inches	Millimeters
#61	0.039	0.9906
#62	0.038	0.9652
#63	0.037	0.9398
#64	0.036	0.9144
#65	0.035	0.889
#66	0.033	0.8382
#67	0.032	0.8128
#68	0.031	0.7874
#69	0.0292	0.74168
#70	0.028	0.7112
#71	0.026	0.6604
#72	0.025	0.635
#73	0.024	0.6096
#74	0.0225	0.5715
#75	0.021	0.5334
#76	0.02	0.508
#77	0.018	0.4572
#78	0.016	0.4064
#79	0.0145	0.3683
#80	0.0135	0.3429