To use this calculator:

1. Select a men’s Nike size from the dropdown menu.
2. Click the “Convert to Women’s Size” button.
3. The equivalent women’s Nike size will be displayed.

The conversion is based on the chart you provided, covering men’s sizes from 3.5 to 10.5 and their corresponding women’s sizes.

Key points about this conversion:

1. Women’s sizes are typically 1.5 sizes larger than men’s sizes (e.g., men’s 7 is equivalent to women’s 8.5).
2. The calculator includes all the sizes provided in the chart.
3. If a size is selected that doesn’t have a direct conversion in the chart (which shouldn’t happen with the dropdown), it will display “N/A”.