Scale Calculator

Convert measurements between full size and model size. Feet, inches, decimals, and mixed fractions can be used together.

Conversion direction

Full size → Model Model → Full size

Input units

Imperial Metric

Feet Inches

The inches field accepts decimals and mixed fractions such as 3.25, 3 1/4, 3-1/4, or 3¼.

Common scale

Feet and inches —

Decimal inches —

Mixed fraction —

Millimetres —

Centimetres —

Metres —