1:5 Scale Calculator & Conversion Chart
Large RC & engine scale · 20% of real size
1:5 is the giant of hobby scales — large-scale RC cars with real gasoline engines, cutaway engine models, and prop replicas. At a fifth of real size, parts are big enough to machine from metal, and physics starts behaving like the real thing, which is exactly why 1:5 RC racing exists.
Precision Scale Conversion Calculator
1:5 Scale Quick Facts
- 1 real foot = 2.4″ (60.96 mm) on the model
- 1 real meter = 200 mm on the model
- A 6 ft (183 cm) person = 365.8 mm (14.4″) tall
- Model is 20% of real size — use this as the scale percentage in 3D-print slicers
1:5 Scale Reference Chart
| Real Size | mm | cm | inches |
|---|---|---|---|
| 1 inch | 5.1 mm | 0.508 cm | 0.2″ |
| 1 foot | 61 mm | 6.1 cm | 2.4″ |
| 6 ft (person) | 365.8 mm | 36.58 cm | 14.4″ |
| 1 meter | 200 mm | 20 cm | 7.874″ |
| 3 m (room height) | 600 mm | 60 cm | 23.622″ |
| 10 meters | 2000 mm | 200 cm | 78.74″ |
| 30 m (building) | 6000 mm | 600 cm | 236.22″ |
Frequently Asked Questions
What is 1:5 scale in mm, cm, and inches?
In 1:5 Scale, 1 unit on the model equals 5 of the same unit in real life. One real foot equals 2.4 inches (60.96 mm) on the model, one real meter equals 200 mm (20.00 cm), and the model is 20% of real size.
How tall is a 6 ft person in 1:5 Scale?
A 6-foot (183 cm) person stands 365.8 mm (14.4 inches) tall in 1:5 Scale.
How do I convert a real measurement to 1:5 Scale?
Divide the real measurement by 5. For example, a 10 m object is 2000.0 mm long in 1:5 Scale. The calculator on this page does this automatically in both directions.