Scale — Model railway
OO scale
OO scale
1:76.2
At 1:76.2 a person is 23 mm tall and a 19 m locomotive is 24.9 cm long. Everything below is drawn at 1:76.2, by an atelier that builds architectural models at the scales either side of it.
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Scale1:76.2
Subjectlocomotive, person, signal
Grid1 cm on the model
DrawnAtelier AMOD
Sheet16 / 20
Person23 mm1.75 m
Track gauge16.5 mmbetween the rails
Carriage31.5 cm24 m long
Locomotive52.5 mm4 m tall
01Converter
Real size,
Real size,
1:76.2 size
For a whole building at every scale at once, use the scale calculator.
| Standard track gauge 1.44 m | 18.8 mm |
|---|---|
| A person 1.75 m | 23 mm |
| A locomotive, height 4 m | 52.5 mm |
| A signal 6 m | 78.7 mm |
| A locomotive, length 19 m | 24.9 cm |
| A carriage 24 m | 31.5 cm |
| 1 mm on the model | 7.6 cm |
|---|---|
| 1 cm on the model | 76.2 cm |
| 5 cm on the model | 3.81 m |
| 10 cm on the model | 7.62 m |
| 30 cm on the model | 22.86 m |
| 50 cm on the model | 38.1 m |
| 1 m on the model | 76.2 m |
02The British scale
At 1:76.2
I
Track gauge
16.5 mm, the same track as HO. True standard gauge at 1:76.2 would be 18.8 mm, so OO track is slightly narrow for its trains.
II
Where it is used
The standard British scale: 4 mm to the foot.
III
For architecture
1:76.2 is almost exactly 1:75. OO figures, cars and trees fit an architectural model at 1:75.
03One figure, every scale
The same person
The same person
at every scale
Architecture
Model railway
04From the archive
Built near 1:76.2
The archive's models at 1:75, the architectural scale closest to 1:76.2.
05The scale rule
Every scale
Architecture ↑Model railway ↓
06Questions
On 1:76.2
What is the ratio of OO scale?
OO scale is 1:76.2. One millimetre on the model is 7.6 cm in reality and one centimetre is 76.2 cm. 16.5 mm, the same track as HO. True standard gauge at 1:76.2 would be 18.8 mm, so OO track is slightly narrow for its trains.
How tall is a person in OO scale?
A person 1.75 m tall is 23 mm in OO scale, and a child of 1.2 m is 15.7 mm. A 4 m locomotive stands 52.5 mm above the rails.
How long is a train in OO scale?
A 24 m passenger carriage is 31.5 cm and a 19 m locomotive 24.9 cm. A twelve-carriage train of 300 m would be 393.7 cm.
Can OO scale figures be used in an architectural model?
1:76.2 is almost exactly 1:75. OO figures, cars and trees fit an architectural model at 1:75.
Your building, at 1:76.2, built by hand.