Scale Model Calculator
Calculate the model size in mm from a real-world measurement and scale ratio.
How to Use the Scale Model Calculator
- Enter the real-world size of the object in metres.
- Select the scale ratio from the dropdown.
- Click Calculate to see the model size, area ratio, and volume ratio.
- Use the model size to plan cuts and part dimensions.
Casi d'Uso
- •Converting real aircraft or vehicle dimensions to model scale.
- •Planning model train layout proportions.
- •Architectural model building.
- •Wargaming terrain and miniature scaling.
Formula
Model size (mm) = Real size (m) × 1000 / Scale denominator. Area ratio = 1 : Scale². Volume ratio = 1 : Scale³.
Domande Frequenti
What does 1:72 scale mean?
At 1:72 scale, 1 mm on the model represents 72 mm (7.2 cm) in real life. It is a common scale for aircraft models.
What scale is best for cars?
1:24 and 1:43 are popular car model scales. 1:18 is used for larger, more detailed diecast models.
Is it free?
Yes, all calculators on OhMyCalc are completely free.