What fits at 1:20
Detail drawings, interior and furniture design, stairs and joinery, and large-scale models.
| Real subject | Real size | 1:20 model |
|---|---|---|
| Standard door (height) | 2 m | 10 cm |
| Family car | 4.5 m | 22.5 cm |
| Room wall | 4 m | 20 cm |
| Person | 1.8 m | 9 cm |
Size comparison at 1:20
Relative model sizes at 1:20 (longest bar = largest model):
1:20 in mm, cm and inches
How common real-world sizes convert to 1:20 model size:
| Real size | Model (mm) | Model (cm) | Model (inches) |
|---|---|---|---|
| 1 m | 50 mm | 5 cm | 1.97 in |
| 2 m | 1 mm | 10 cm | 3.94 in |
| 5 m | 25 mm | 25 cm | 9.84 in |
| 10 m | 5 mm | 50 cm | 19.7 in |
| 1 ft | 15.2 mm | 1.52 cm | 0.6 in |
| 6 ft (person) | 91.4 mm | 9.14 cm | 3.6 in |
Frequently asked questions
What does 1:20 mean?
1 cm on the drawing equals 20 cm in reality, so a 2 m door is drawn 10 cm tall.