How to Use the Scale Calculator
The scale calculator helps you convert measurements between real-world sizes and scaled sizes. This is essential for architectural drawings, model making, and technical illustrations.
Common Scale Factors
- 1:48 (1/4" = 1'-0") - Common architectural scale
- 1:87 (HO scale) - Popular model train scale
- 1:24 (1/2" = 1'-0") - Detailed architectural drawings
- 1:100 - Metric architectural drawings
To scale up (real → model):
\[ \text{Model Size} = \text{Real Size} \times \text{Scale Factor} \]
To scale down (model → real):
\[ \text{Real Size} = \text{Model Size} \div \text{Scale Factor} \]
Example Calculation
Converting a 10-inch measurement at 1:48 scale:
- Original measurement: 10 inches
- Scale factor: 1:48
- Scaled measurement: 10 ÷ 48 = 0.208 inches
Common Applications
- Architectural drawings and blueprints
- Model making and miniatures
- Technical illustrations
- Map making and cartography