Model scale converter for HO and N scale, 1:35, 1:72 or any custom 1:n scale.
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ScaleMate is a model scale calculator and scale converter for model building. Convert real-world measurements to model size, or model parts back to real size, in seconds. Offline, without an account and without ads.
Whether you build HO or N scale model railroads, plastic model kits in 1:35, 1:48 or 1:72, dioramas, 1:12 dollhouse miniatures, wargaming terrain, RC models or architectural models, ScaleMate gives you the right measurement for your scale. No scale ruler, no spreadsheet, no mental math.
SCALE CONVERSION IN SECONDS
• Real to model: enter a real-world measurement and get the model size instantly
• Model to real: measure a part on your model or plan and get the full-size value
• Length × width × height in one step for complete dimensions
• Compare one measurement across up to three scales side by side
• Work in mm, cm, m, inches or feet and choose the output unit
• Copy results and find your last 10 calculations in the history
ALL COMMON MODEL SCALES
1:6, 1:12, 1:24, 1:35, 1:48, 1:72, 1:87, 1:100, 1:144, 1:160, 1:350 and 1:700 are built in, and any custom scale 1:n works too.
• Model trains: HO scale 1:87, N scale 1:160 and O scale 1:48, plus S, G or Z scale as a custom scale
• Plastic model kits: 1:35 military vehicles and figures, 1:48 and 1:72 aircraft, 1:24 cars
• Ship models in 1:350 and 1:700, mecha and airliners in 1:100 and 1:144
• Dollhouses and miniatures in 1:12, action figures in 1:6, RC cars in 1:10 or 1:8
• Architectural models in 1:100, 1:50, 1:200 or whatever your plan says
SCALEMATE PRO: PROJECTS AND CUT LISTS
Unlock the full project workspace with a one-time purchase. No subscription.
• A project for every build, with parts, groups, quantities, materials and thickness
• Enter parts in real-world size and get a cut list in model size, ready to copy or export as CSV and PDF
• Find an unknown scale: enter one real and one model measurement, and ScaleMate calculates the scale and the nearest standard scale
• More than three scales in comparison and a history of up to 100 calculations
BUILT FOR THE WORKBENCH
ScaleMate is a fast, focused scale calculator: type a number, pick a scale, read the result. No CAD program, no setup, no sign-up. Everything works offline, and your projects stay on your device. Files only leave it when you export or share them yourself.
ScaleMate is a calculation aid. Please double-check important measurements before cutting material.