Scales and Sizing

Don't know your model's scale? Learn 4 easy methods to measure and calculate scale for slot cars, diecast models & trains. Includes formula, reference measurements by scale, and comparison chart. Figure out if you have 1:64, 1:32, 1:48 or other scales.

Is 1:48 scale the same as O gauge? Yes! Learn the technical difference between O scale (size ratio) and O gauge (track width), plus which train brands like Lionel and MTH are compatible with 1:48 scale products. O gauge explained simply.

Complete scale compatibility guide for Hot Wheels, Matchbox, AFX, Aurora, Tyco, Carrera, Scalextric, Lionel & more. Find the exact scale for your slot cars, diecast collection, or model trains. Reference chart for 1:64, 1:43, 1:32, 1:48 & 1:87 scales.

Find the right decal scale for 1/64 HO slot cars including AFX, Aurora, Tyco, Auto World & Johnny Lightning. Learn why 1:64 scale decals work best and which designs are available for small-scale slot car customization. Decal sizing guide.

Learn which model scale to order for your hobby project. Quick guide matching scales to Hot Wheels, slot cars, model trains & dioramas. Find the right 1:64, 1:32, 1:48, or 1:87 scale for AFX, Carrera, Lionel & more at Innovative Hobby Supply.

Wondering why some model kits show multiple scales like 1/87 and 1/200? Learn how one building kit works across different scales based on what it represents—from massive hangars to small garages. Multi-scale product guide from Innovative Hobby Supply.