N Scale to HO Scale Conversion
To convert a model dimension from N Scale (1:160) to HO Scale (1:87), multiply it by 1.8391 (160 ÷ 87). The result is a larger model — every length, width, and height changes by the same factor.
Conversion Chart
| N Scale size (mm) | HO Scale size (mm) |
|---|---|
| 1 mm | 1.84 mm |
| 2 mm | 3.68 mm |
| 5 mm | 9.20 mm |
| 10 mm | 18.39 mm |
| 20 mm | 36.78 mm |
| 50 mm | 91.95 mm |
| 100 mm | 183.91 mm |
Frequently Asked Questions
How do I convert N Scale to HO Scale?
Multiply any N Scale model dimension by 1.8391 to get the HO Scale dimension. This works because N Scale is 1:160 and HO Scale is 1:87, so the factor is 160 ÷ 87 = 1.8391.
Is HO Scale bigger or smaller than N Scale?
HO Scale models are larger: the same subject is 1.8391× bigger in every dimension in HO Scale than in N Scale.
Keep Exploring
Reverse: HO Scale to N Scale · N Scale (1:160) guide · HO Scale (1:87) guide · Full calculator