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Clothing Size Converter
Find a men’s tops letter size from chest circumference in centimeters or inches using Nike’s size chart.
- Nike men’s tops size
- M
- Chest circumference, cm
- 100
How the calculation works
Chest circumference is matched to the manufacturer’s range; inches convert to centimeters by multiplying by 2.54.
Inputs
- Chest circumference
- Unit
Calculation details
This uses Nike Men’s Tops regular sizes XXS–4XL. It does not apply to women’s, children’s, or Asian sizing.
Both sizes are shown at a shared boundary. Fit depends on the garment; check its specific size guide before buying.
Sources
Updated: 2026-10-02