Model Kit Scale Conversion Calculator

Work out model kit scale conversion instantly with clear inputs, formula shown and shareable results.

About Model Kit Scale Conversion Calculator

A scale of 1 to n means every real dimension is divided by n, so the model length is the real length over the scale denominator. Because volume scales with the cube of the ratio, a 1:24 model has only one 13,824th of the real volume, which is why detail parts get so small.

Formula

Model dimension

model = real dimension / scale denominator

Worked example

With the default values below, Model Kit Scale Conversion Calculator returns Model length of 187.500. Change any input above and every figure here is recalculated in your browser.

Inputs used

Real object lengthminimum 0.1 mm: 4,500 mm
Scale denominator (1 to this)minimum 1: 24

Results

Model length: 187.500 mm
Model length in centimetres: 18.750 cm
Model length in inches: 7.3819 in
Scale used: 1:24

Step by step

1Values used
2Model dimension
3Model length= 187.500 mm
4Model length in centimetres= 18.750 cm
5Model length in inches= 7.3819 in
6Scale used= 1:24

Assumptions and limits

The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Model Kit Scale Conversion figure worked out?

model = real dimension / scale denominator. A scale of 1 to n means every real dimension is divided by n, so the model length is the real length over the scale denominator.

Why does this matter?

Because volume scales with the cube of the ratio, a 1:24 model has only one 13,824th of the real volume, which is why detail parts get so small.

What do I need to enter?

Enter real object length, scale denominator (1 to this). The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.