Diecast Model Scale Comparison
Model Railroad Scales Explained – Guide to Popular Train & Vehicle Scales
Model railroading is a timeless hobby enjoyed by collectors, builders, and families around the world. One of the first things to understand when entering the world of model trains and accessories is scale — the ratio between the model and its real-world counterpart. Below is a breakdown of the most popular model railroad scales, their sizes, and what makes each unique.
Visual Comparison of Model Car Scales
Here's a side-by-side look at how vehicle sizes change with different diecast/model scales. This gives you a quick visual guide before diving into the full table below:
Above: Model cars shown from left to right — 1:18, 1:24, 1:43, 1:64, and 1:87 scale.
Popular Model Railroad Scales
| Scale Name | Ratio | Approx. Model Length of a 40-ft Boxcar | Popularity | Notes |
|---|---|---|---|---|
| G Scale | 1:22.5 | ~21.3 inches | Moderate | Often used outdoors or in garden layouts |
| O Scale | 1:48 | ~10 inches | Moderate | Large and durable; popular with Lionel collectors |
| HO Scale | 1:87 | ~5.5 inches | Most Popular | Best balance of size and detail; massive product availability |
| N Scale | 1:160 | ~3 inches | High | Great for small spaces and portable layouts |
| Z Scale | 1:220 | ~2.2 inches | Niche | Extremely small; ideal for micro layouts |
Which Scale is Used Under the Christmas Tree?
The classic train setup under a Christmas tree is typically in O Scale (1:48), especially from brands like Lionel. These trains are durable, eye-catching, and often come in holiday-themed sets, making them a seasonal favorite for generations. G Scale is also occasionally used when space allows, offering large and festive rolling stock perfect for holiday displays.
Diecast Vehicle Compatibility by Scale
Many collectors also incorporate diecast cars and trucks into their layouts for added realism. Here's how they line up:
- 1:87 scale diecast → Perfect for HO scale layouts
- 1:160 scale diecast → Matches N scale trains
- 1:50 scale diecast → Often used alongside O scale scenes
- 1:22.5 to 1:24 scale → Great match for G scale displays
Choosing the right scale ensures your trains, vehicles, buildings, and figures all appear in proportion, enhancing the realism and immersion of your model railroad or diorama scene.
Need Help Choosing a Scale?
If you're just starting out or looking to expand your collection, browse by scale in our online store. We offer a wide selection of diecast vehicles matched to all major model railroad scales.