1:48 Scale Calculator

1:48 — also called “quarter scale” because a quarter-inch represents one foot — is a favourite for aircraft and a standard for O-gauge railroading. At 1:48, a 48 inch real object becomes 1 inch on the model.

Scale Converter

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What fits at 1:48 (quarter scale)

Aircraft kits, larger armour, dioramas and O-scale trains. The extra size over 1:72 leaves room for cockpit detail and weathering.

Real subjectReal size1:48 model
P-51 Mustang fighter 9.83 m 20.5 cm
F/A-18 Hornet 17.1 m 35.6 cm
AH-64 Apache helicopter 17.7 m 36.9 cm
Willys Jeep 3.33 m 6.9 cm
Human figure 1.8 m 3.8 cm

Frequently asked questions

Why is 1:48 called quarter scale?

Because a quarter of an inch on the model equals one foot in real life (0.25 in × 48 = 12 in), a common architectural and modelling convention.

Is 1:48 the same as O scale?

In the United States, O-scale model railroads commonly use 1:48, so the two share the same ratio.

Related scales

→ See all scales