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How to Find Your Sole

There are three metrcis used to determine track length. In order of preference, they are:

1. Insole Length
2. Nominal Shoe Size
3. Subject Height

The Predicted range shown will be based on the best metric available. If you have data for multiple metrics, the data ranges will be visible in the details section.

Instructions

Insole length

Insert the leading edge of a tape measure into the footwear. Ensure the tape measure extends to the front of the toe box. Hold the tape measure flat against the floor of the insole. Bend the tape at the rear edge or the rise of the heel. The reading at the heel is made as closely as possible to the point at which the rise (vertical slope) equals the run (horizontal aspect).

If possible, measure multiple items of footwear and use the average of the measurements. Ensure the proper units are selected. If using fractional inches, it must be converted to decimal.

Nominal Size

Indicate nominal size in whole or half-size increments. Make sure to set the correct footwear size type: Men's, Women's, or Youth.

Subject Height

Indicate the subject's height. Make sure to set the correct measurement units and the subject's sex at birth. (The correlations for track length are based on genetics rather than gender identity.)

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