Shirt Size Chart
Compare common shirt letter sizes with neck and chest measurements.
Sizing hub
Shirt Size
Use neck and chest measurements to narrow shirt sizes before checking cut and sleeve length.
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Men's Shirt Size Chart
Compare men’s shirt sizes using neck and chest measurements.
Women's Shirt Size Chart
Use women’s bust, waist, and international clothing references for shirt sizing.
Dress Shirt Size Chart
Compare dress-shirt sizes using neck and chest measurements.
Dress shirts and casual shirts use different cues
Dress shirts often emphasize neck and sleeve measurements, while casual shirts commonly use letter sizes. Match the reference to the garment you are buying.
Fit names are not measurements
Slim, regular, relaxed, and athletic fits change ease around the chest and waist. The same labeled size can therefore feel different across cuts.
Use the measurement that matches the shirt construction
Use neck and chest measurements to narrow shirt sizes before checking cut and sleeve length. Casual shirts often start from chest or bust, while dress shirts may depend more heavily on neck and sleeve measurements.
Slim, regular and relaxed describe ease and shape; they do not create a universal alternative sizing system.
Method & references
How this guidance is checked
These sources support the measurement method and help check real-world variation. They are not presented as one universal brand-size table.
- ISO 8559-2:2025 — Size designation of clothes — Primary and secondary dimension indicators — International Organization for Standardization (ISO). Clothing methodology: size designation should be based on defined body measurements rather than assuming universal retail labels.
- Men Size Guide — H&M. Cross-check for men’s EU/US clothing, chest and waist ranges, trousers, jackets, and suit-style numeric references.
- Sizing Guides — Charles Tyrwhitt. Cross-check for shirt neck, chest, sleeve and fit ranges, showing that fit blocks change garment measurements.
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