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Scale Calculator

Convert lengths to scale. For maps, model building and technical drawings.

Updated 2025 Data stays local

Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.

Frequently Asked Questions

How do I read a map scale?

A scale of 1:100 means 1 cm on the map equals 100 cm (1 meter) in reality. At 1:50,000, one centimeter represents 500 meters or 0.5 kilometers.

How do I convert between scale and real dimensions?

Real dimension equals map dimension times scale factor. Map dimension equals real dimension divided by scale factor. Always ensure both measurements use the same units.

What is the Scale Calculator?

The scale calculator converts dimensions between a map/model and reality, e.g. for maps, architectural plans or model building.

How does the Scale Calculator work?

Enter the scale (e.g. 1:100) and either the model or the actual size. The calculator computes the other. Common scales are preset.

Key Data and Facts

Scale 1:100 means: 1 cm on the plan = 100 cm (1 m) in reality. Common scales: architecture 1:50-1:500, city map 1:10,000-1:25,000.

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