Published on 07/7/2008

What Scale Is It?

I often questioned about the scale of items. I have tried to answer as many questions as possible regarding these scales and their relationships to, mm conversions, fractions, train gauge and scale foot. Here's some beginner guide about what diecast scale is it.

Please note:

This information is provided as a guideline and does not necessarily relate exactly in mathematical terms. Some scales are "cross overs" which could be used in either the smaller or larger scale.

Fraction Scale	Millimeter	Inch Height	Train Gauge	Actual Inch Scale
1/220	6.5 mm	1/4	Z	Very Small Scale - less than 1/2 inch for most items
1/160	9 mm	3/8	N (OOO)	.
1/144	14 mm	?	N + -	See Dragon Can.do Series for accurate representation.
1/120	15 mm	15/32	TT U.S.	.
1/106	16 mm	?	?	.
1/100	18 mm	?	TT English	Small Scale - usually 1 1/2 inches or less
1/90	.	?	HO	.
1/87	16.5-20 mm	5/8	HO	Somewhat smaller than Matchbox.
1/76	19-20 mm	3/4	OO U.S.	Matchbox Size
1/72	25 mm	1	OO	Matchbox Size
1/64	26 mm	1 1/8	S	Scale for all American Highway Legends Straight chassis trucks = 4 inches long Semi Trailer trucks = 8 to 11 inches long. Lledo DG models fall into this range also.
1/56 1/50	28 mm 35 mm	1 3/16 1 1/4	? O -	Scaled correctly for the 28mm Wargaming Most tanks will measure 6 to 7 inches long. Lledo DG models fall into this range.
1/48	36 mm	1 1/2	O	True 1:48 scale is 36mm Most all Military Solido, Verem, Gasoline, Parade lines. Most tanks will measure 6 to 7 inches long.
1/43	30-44 mm	1 3/4	O +	Used often on 1/48 - 1/50 and 1/60 scale layouts Some forced perspective may be required. Most trucks will measure 4-5 inches long.
1/40	45 mm	1 7/8	?	.
1/35	50 mm	2	?	.
1/32	54 mm	2 1/4	?	Medium Scale for Vehicles = 6 to 10 inches
1/29	60 mm	2 1/2	G	.
1/24	70-75 mm	3	G/#1	.
1/22	?	3 1/3	G/#1 German	.
1/20	?	3 1/2	G/#1 U.S.	.
1/18	90-100 mm	4	?	Large Scale - car or pickup = 9 to 12 inches
1/12	150 mm	?	?	Common for 1940 - 60's Pressed Steel Buddy L /Tonka Trucks Trucks = 20 to 30 inches long 1 inch = 1 foot in real life.
1/6	300 mm	?	?	Very large Scale - uncommon for scaled vehicle use but a few are out there - See 21st Century Toys. More common for dolls and figures. 2 inches = 1 foot in real life.