Model scale converter

How big is a 15-meter wagon at 1:87? Pick the scale (or enter any ratio) and convert real sizes into model millimeters.

Scale

Real size

Unit

The most common scales

Model railways: H0 = 1:87 (the most widespread), N = 1:160, Z = 1:220, TT = 1:120. Collector cars: 1:18, 1:24, 1:43. Aircraft: 1:48, 1:72, 1:144. Military and figures: 1:35 and 1:32.

How the ratio works

At 1:87 every real measurement is divided by 87: a 15-meter wagon becomes 17.2 cm. It works both ways: 1 cm on the layout equals 87 real cm — handy for designing believable buildings and dioramas.