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Online Scale Conversion ToolS

Below is a quick-jump list of the current tools.


The tools below can be used to easily convert from any unit in any scale to any other unit in any other scale, or other various plan scale conversion functions. I use the tool often for scratch building projects.

Simply enter the amount, unit (defaults to cm) and scale(defaults to 1/1) to convert from and select the units and scale to convert to. Click the button and the result will be displayed instantly.

You can also use the second calculator to find the scale of an item.

There are lots of scales already included but feel free to drop me a line if you want any more added.

Convert any measurement in a known scale into another known scale.

Convert in scale

to in scale


Calculate the scale from two measurements. Keep both measurements in the same format, if the top one is inches, then consider the bottom inches also. (Or mm, metres, feet - as long as they're both the same)

Measurement of large scale (eg length of real car)

Measurement of smaller scale (eg. length of car model)

Scale is

Calculates how much to enlarge/reduce your existing plan to get from one scale to another.

Original Plan Scale 1/

Target Scale of Plan 1/

Increase/Decrease percentage is

If you've found this free tool remotely useful, please consider tipping a $1 to go towards a beer. Because beer is good.

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Scale Converter Tool

Check out our new Online Scale conversion tool. Convert from any scale in any unit of measurement to any other scale in any other unit.

Click here to view the
Scale Conversion Tool

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