DCC Decoder Wizard

Find the perfect decoder for your locomotive in 5 easy steps

ScaleLocomotiveConnectorPrioritiesResults

Step 1: What scale is your locomotive?

This determines the physical size of decoders that will fit.

Z Scale (1:220)

Smallest common scale, requires ultra-thin decoders

N Scale (1:160)

Popular small scale, tight spaces

HO Scale (1:87)

Most popular scale, widest decoder selection

O Scale (1:48)

Large scale, room for big decoders and speakers

G Scale (1:22.5)

Garden railways, large decoders with high amperage