Scale model calculator
Convert a real measurement to a scale drawing or model, convert back, or resize between two model scales.
Bookmark this page
Keep this page handy for next time.
- On a computer
- Press Ctrl + D, or Command + D on a Mac.
- On a phone or tablet
- Open your browser's menu or Share menu and look for Add Bookmark, Bookmark or Add to favourites.
A bookmark saves the page link. Save any tool results separately.
How to use this tool
- Choose real-to-model, model-to-real or a conversion between scales.
- Enter the starting measurement and units. For 1:50, enter 50 as the denominator. Run the tool for the converted length.
Things to know
- Linear measurements only. Area and volume scale by different powers and are not calculated.
- Unit conversions are exact; results are rounded to ten significant digits. This does not change an image or printer setting.
- Processing stays on your device. Results are not saved between visits.
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