Skip to main content
MAXScanner calculator widget
Scale Calculator — Drawings, Maps and Models
Open full guide ↗
Calculate
Real size → scaled size
Scaled size → real size
Find 1:N scale ratio
Real measurement
Input unit
millimeters (mm)
centimeters (cm)
meters (m)
inches (in)
feet (ft)
Scale denominator (1:N)
Output unit
millimeters (mm)
centimeters (cm)
meters (m)
inches (in)
feet (ft)
1:20
1:50
1:100
1:200
1:500
Scaled measurement
40 mm
Real size divided by 1:100.