HO scale distance converter

In HO Scale (1:87), 1 real-world meter translates to 1.15 centimeters on your model train board. A prototype mile (5,280 feet) is scaled down to exactly 60.6 feet (18.47 meters) in HO railroading layout spaces.

Hobbies & Hangar

Model Train Scale Distance Converter

Translate actual real-world distances into standard model railroad layout sizes.

Scale Equations: HO Distance Mappings

How do you convert real distances to model railroad scales? In HO Scale (1:87.1), a prototype distance of 1 meter equals exactly 1.15 centimeters (11.5 mm). A full real-world mile (1.61 km) translates to exactly 60.6 feet (18.47 meters) on an HO layout.

Scale Parameters

Select Model Rail ScaleMost popular scale worldwide. Very detailed.

Real-World (Prototype) Distance

Prototype Unit

Scaled Dimensions

Scaled Inches

45.20"

Scaled Feet + Inches

3' 9.2"

Scaled Metric (cm)

114.81 cm

Scaled Metric (m)

1.1481 m