1:48 Scale Calculator & Conversion Chart
Quarter scale · 2.08% of real size
1:48 — "quarter scale," because a quarter inch equals one foot — is the mainstream scale for aircraft kits and American O gauge railroading. It offers roughly twice the visual detail of 1:72 for aircraft while still fitting a fighter on a desk shelf.
Precision Scale Conversion Calculator
1:48 Scale Quick Facts
- 1 real foot = 0.25″ (6.35 mm) on the model
- 1 real meter = 20.83 mm on the model
- A 6 ft (183 cm) person = 38.1 mm (1.5″) tall
- Model is 2.08% of real size — use this as the scale percentage in 3D-print slicers
1:48 Scale Reference Chart
| Real Size | mm | cm | inches |
|---|---|---|---|
| 1 inch | 0.529 mm | 0.053 cm | 0.021″ |
| 1 foot | 6.4 mm | 0.635 cm | 0.25″ |
| 6 ft (person) | 38.1 mm | 3.81 cm | 1.5″ |
| 1 meter | 20.8 mm | 2.08 cm | 0.82″ |
| 3 m (room height) | 62.5 mm | 6.25 cm | 2.461″ |
| 10 meters | 208.3 mm | 20.83 cm | 8.202″ |
| 30 m (building) | 625 mm | 62.5 cm | 24.606″ |
Frequently Asked Questions
What is 1:48 scale in mm, cm, and inches?
In 1:48 Scale, 1 unit on the model equals 48 of the same unit in real life. One real foot equals 0.25 inches (6.35 mm) on the model, one real meter equals 20.83 mm (2.08 cm), and the model is 2.08% of real size.
How tall is a 6 ft person in 1:48 Scale?
A 6-foot (183 cm) person stands 38.1 mm (1.5 inches) tall in 1:48 Scale.
How do I convert a real measurement to 1:48 Scale?
Divide the real measurement by 48. For example, a 10 m object is 208.3 mm long in 1:48 Scale. The calculator on this page does this automatically in both directions.
Related Scales
1:72 Scale · 1:32 Scale · O Scale (1:48) · All scales compared