1:1 ↔ 1:20 Scale Converter
Convert architectural measurements between 1:1 (full scale) and 1:20 scale drawings
1:1 (Full Scale)
Ratio: 1:1
Decimal: 1
Example: 1 cm on drawing = 1.0 cm in reality
1:20
Ratio: 1:20
Decimal: 0.05
Example: 1 cm on drawing = 20.0 cm in reality
Scale Converter
Measurement on drawing (1:20)
5.00 mm
Real-world size
100.00 mm
= 10.00 cm
= 0.100 m
Quick Reference Table
| Drawing (1:1) | Drawing (1:20) | Real World |
|---|---|---|
| 10 mm | 0.50 mm | 10 mm |
| 50 mm | 2.50 mm | 50 mm |
| 100 mm | 5.00 mm | 100 mm |
| 200 mm | 10.00 mm | 200 mm |
| 500 mm | 25.00 mm | 500 mm |