1:72 Scale Calculator & Conversion Chart

Braille scale · 1.39% of real size

1:72 is the oldest and most prolific aircraft modeling scale — one real foot becomes exactly one sixth of an inch. Its compact size lets collectors build whole squadrons, and it doubles as a popular scale for small armor ("Braille scale") and wargaming terrain.

Precision Scale Conversion Calculator

Real World Size

Scale (1 : N)

Scaled Size

1:72 Scale Quick Facts

1 real foot = 0.167″ (4.23 mm) on the model
1 real meter = 13.89 mm on the model
A 6 ft (183 cm) person = 25.4 mm (1″) tall
Model is 1.39% of real size — use this as the scale percentage in 3D-print slicers

1:72 Scale Reference Chart

Real Size	mm	cm	inches
1 inch	0.353 mm	0.035 cm	0.014″
1 foot	4.2 mm	0.423 cm	0.167″
6 ft (person)	25.4 mm	2.54 cm	1″
1 meter	13.9 mm	1.39 cm	0.547″
3 m (room height)	41.7 mm	4.17 cm	1.64″
10 meters	138.9 mm	13.89 cm	5.468″
30 m (building)	416.7 mm	41.67 cm	16.404″

Frequently Asked Questions

What is 1:72 scale in mm, cm, and inches?

In 1:72 Scale, 1 unit on the model equals 72 of the same unit in real life. One real foot equals 0.167 inches (4.23 mm) on the model, one real meter equals 13.89 mm (1.39 cm), and the model is 1.39% of real size.

How tall is a 6 ft person in 1:72 Scale?

A 6-foot (183 cm) person stands 25.4 mm (1 inches) tall in 1:72 Scale.

How do I convert a real measurement to 1:72 Scale?

Divide the real measurement by 72. For example, a 10 m object is 138.9 mm long in 1:72 Scale. The calculator on this page does this automatically in both directions.