1:87 scale
1 m → 11.5 mm
Everything is 87 times smaller than life size. This is the scale used for HO gauge model trains.
Common sizes at 1:87
| Real size | At 1:87 |
|---|---|
| A person (1.8 m) | 20.7 mm |
| A car (4.5 m) | 51.7 mm |
| A bus (12 m) | 137.9 mm |
| A house (8 m tall) | 92 mm |
| One metre | 11.5 mm |
| One foot (12 in) | 3.5 mm |
Convert your own measurement
mm real →11.5 mm
Open the full scale converter to work in inches, feet or metres.
Nearby scales
Questions
- What does 1:87 scale mean?
- Every 87 units of real size become 1 unit on the model, so a real object is 87 times larger than its 1:87 version. One metre becomes 11.5 mm.
- How tall is a person at 1:87 scale?
- An average adult of 1.8 m stands 20.7 mm tall at 1:87.
- What is 1:87 scale used for?
- It is the usual scale for HO gauge model trains.