Model Scale CONVERTER

Image: Knelstrom Media.

​This converter is designed for model makers, hobbyists, designers, and anyone working with scaled measurements.
Enter a real-world or model dimension, choose the unit and scale ratio, and the tool instantly converts the measurement in both directions — from real size to model size, or from model size back to real-world dimensions.

Model Scale Calculator

Value

Unit Millimetres (mm) Centimetres (cm) Metres (m) Inches (in) Feet (ft)

Scale 1:6 1:8 1:10 1:12 1:16 1:18 1:20 1:24 1:25 1:32 1:35 1:43 1:48 1:50 1:56 1:64 1:72 1:76 1:87 (HO) 1:96 1:100 1:120 (TT) 1:144 1:160 (N) 1:200 1:350 1:400 1:500 1:700

Direction Real → Model Model → Real

Enter a value to see the result.

​It supports a wide range of standard modelling scales and units, presenting results clearly in millimetres, centimetres, metres, inches, and feet. This makes it easy to check proportions, plan builds, verify kit dimensions, or translate reference measurements without manual maths.
The calculator updates automatically as values change, providing fast, precise conversions suitable for scale modelling, railway layouts, architectural models, tabletop terrain, and miniature design.