This conversion calculator is designed to help find out the size from a 1/1 object to a scale you nominate, and from a scale size back to 1/1 size if you wish to double check an object on a scale model for accuracy against the ''real thing''.

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Example 1: To find out what size a 10mm bolt would be in 1/12 scale in mm.

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1) - Enter length 10.00      2) - Enter the units in mm     3) Enter 1/1 for the scale as this is for a ''real'' 10mm bolt

4) - Select the units you wish to have the result provided in     5) - Select 1/12 as the scale

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Press CALCULATE

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This gives the size of 0.833 mm meaning, in order to replicate a 10mm bolt in ''real life'' on a 1/12 scale model, the scale bolt needs to be 0.833 mm diameter.​​​​​​​

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