Understanding 1:220 Scale
The 1:220 scale is a proportional ratio where every 1 unit of measurement on your drawing, model, or plan represents exactly 220 of those same units in the real world. This makes 1:220 a medium-scale representation, meaning objects appear moderately sized on paper.
For example, 1 mm on a 1:220 drawing represents 220 mm (22.0 cm) in reality. Conversely, a real-world measurement of 1 meter would appear as 4.55 mm on a 1:220 scale drawing.
1:220 Scale Quick Reference Table
Common conversions at 1:220 scale for quick reference.
| Real World | On Drawing (1:220) | Imperial Equivalent |
|---|---|---|
| 0.5 m | 2.27 mm | 2.27 thou |
| 1 m | 4.55 mm | 4.55 thou |
| 2 m | 9.09 mm | 9.09 thou |
| 5 m | 22.7 mm | 22.73 thou |
| 10 m | 45.5 mm | 1.79″ |
| 25 m | 113.6 mm | 4.47″ |
| 50 m | 227.3 mm | 8.95″ |
| 100 m | 454.5 mm | 17.90″ |
When to Use 1:220 Scale
The 1:220 scale is a standard in model & miniature work. Here are the most common applications:
- Z scale railways
- Micro layouts
- Desktop dioramas
How to Convert 1:220 Scale Step by Step
- 1Identify the scale ratio. You are working with 1:220, which means the drawing is 220× smaller than reality.
- 2Real → Scaled: Divide the real measurement by 220. Example: 5 m = 22.7 mm on paper.
- 3Scaled → Real: Multiply the drawing measurement by 220. Example: 20 mm on drawing = 4,400 mm (4.40 m) in reality.
1:220 Scale FAQ
- What does 1:220 scale mean?
- A 1:220 scale means that 1 unit on your drawing or model represents 220 of the same units in real life. For example, 1 mm on a 1:220 drawing equals 0.22 m in reality.
- How do I convert real measurements to 1:220 scale?
- To convert a real-world measurement to 1:220 scale, divide the real measurement by 220. For instance, a real wall that is 5 meters long would be drawn as 22.7 mm on a 1:220 drawing.
- How do I convert 1:220 scale back to real size?
- Multiply the measurement on your 1:220 drawing by 220 to get the real-world size. If something measures 20 mm on your drawing, the real size is 4,400 mm (4.40 m).
- What is 1:220 scale used for?
- The 1:220 scale is commonly used in model & miniature applications. It is ideal for representing objects and spaces at a manageable size while maintaining proportional accuracy.
- Is 1:220 scale metric or imperial?
- Scale ratios like 1:220 are unit-independent — they work with any measurement system. Whether you measure in millimeters, centimeters, inches, or feet, the ratio remains the same: 1 unit on paper equals 220 units in reality.
Popular 1:220 Conversions
Quick links to specific unit conversions at 1:220 scale.