An adult medium fits a body chest of 38-40 inches (97-102 cm) in Gildan 5000, 38-40 inches in Port & Company PC61 and 38-41 inches in Bella+Canvas men's/unisex.
Method: compiled 2026-10-01 from 10 sources, each named beside its row: Gildan 5000 spec sheet (https://www.sanmar.com/p/625_Black/specSheetMeasurements, fetched live 2026-10-01); Port & Company PC61 spec sheet (https://www.sanmar.com/p/1634_Ash/specSheetMeasurements, fetched live 2026-10-01); Bella+Canvas men's/unisex chart (https://www.bellacanvas.com/fit-size-charts, fetched live 2026-10-01); Gildan 8800 polo spec sheet (https://www.sanmar.com/p/574_Purple/specSheetMeasurements, fetched live 2026-10-01); Port & Company PC54 spec sheet (https://www.sanmar.com/p/3985_AquaticBl/specSheetMeasurements, fetched live 2026-10-01); Port & Company PC61 spec sheet (https://www.sanmar.com/p/1634_Lime/specSheetMeasurements, fetched live 2026-10-01); Port Authority K500 spec sheet (https://www.sanmar.com/p/1225_StrongBlue/specSheetMeasurements, fetched live 2026-10-01); Port & Company LPC54 spec sheet (https://www.sanmar.com/p/6464_AthlMaroon/specSheetMeasurements, fetched live 2026-10-01); Port & Company LPC54 women's spec sheet (https://www.sanmar.com/p/6464_JetBlack/specSheetMeasurements, fetched live 2026-10-01); Gildan 5000L women's spec sheet (https://www.sanmar.com/p/6478_Navy/specSheetMeasurements, fetched live 2026-10-01). Where a source gives inches only, cm is converted at 2.54 cm per inch and rounded to the nearest cm. Values a source publishes outside a plausible garment range are left out.
What chest does a medium fit?
Body chest, measured around the fullest part of the chest.
| Size | Brand and style | Measurement | Inches | cm | Source |
|---|---|---|---|---|---|
| Adult M | Bella+Canvas men's/unisex | Body chest it fits | 38-41 | 97-104 (converted) | bellacanvas.com/fit-size-charts, "Men's/Unisex Chest" row, fetched 2026-10-01 |
| Adult M | Gildan 5000 | Body chest it fits | 38-40 | 97-102 (converted) | www.sanmar.com/p/625_Black/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
| Adult M | Gildan 8800 polo | Body chest it fits | 38-40 | 97-102 (converted) | www.sanmar.com/p/574_Purple/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
| Adult M | Port & Company PC54 | Body chest it fits | 38-40 | 97-102 (converted) | www.sanmar.com/p/3985_AquaticBl/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
| Adult M | Port & Company PC61 | Body chest it fits | 38-40 | 97-102 (converted) | www.sanmar.com/p/1634_Ash/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
How big is a medium shirt itself?
Garment measurements from the spec sheets.
| Size | Brand and style | Measurement | Inches | cm | Source |
|---|---|---|---|---|---|
| Adult M | Gildan 5000 | Chest, laid flat | 20 | 51 (converted) | www.sanmar.com/p/625_Black/specSheetMeasurements, Product Measurements 'Chest' row, fetched 2026-10-01 |
| Adult M | Port & Company PC61 | Chest, laid flat | 20 | 51 (converted) | www.sanmar.com/p/1634_Ash/specSheetMeasurements, Product Measurements 'Chest' row, fetched 2026-10-01 |
| Adult M | Port & Company PC61 | Chest, laid flat | 20 | 51 (converted) | www.sanmar.com/p/1634_Lime/specSheetMeasurements, Product Measurements 'Chest' row, fetched 2026-10-01 |
| Adult M | Port Authority K500 | Chest, laid flat | 21.5 | 55 (converted) | www.sanmar.com/p/1225_StrongBlue/specSheetMeasurements, Product Measurements 'Chest' row, fetched 2026-10-01 |
| Adult M | Gildan 5000 | Body length | 29 | 74 (converted) | www.sanmar.com/p/625_Black/specSheetMeasurements, Product Measurements 'Body Length at Back' row, fetched 2026-10-01 |
| Adult M | Port & Company PC61 | Body length | 29 | 74 (converted) | www.sanmar.com/p/1634_Ash/specSheetMeasurements, Product Measurements 'Body Length at Back' row, fetched 2026-10-01 |
| Adult M | Port & Company PC61 | Body length | 29 | 74 (converted) | www.sanmar.com/p/1634_Lime/specSheetMeasurements, Product Measurements 'Body Length at Back' row, fetched 2026-10-01 |
| Adult M | Port Authority K500 | Body length | 30 | 76 (converted) | www.sanmar.com/p/1225_StrongBlue/specSheetMeasurements, Product Measurements 'Body Length at Back' row, fetched 2026-10-01 |
| Adult M | Gildan 5000 | Sleeve length | 17 | 43 (converted) | www.sanmar.com/p/625_Black/specSheetMeasurements, Product Measurements 'Sleeve Length from Center Back' row, fetched 2026-10-01 |
| Adult M | Port & Company PC61 | Sleeve length | 17.75 | 45 (converted) | www.sanmar.com/p/1634_Ash/specSheetMeasurements, Product Measurements 'Sleeve Length from Center Back' row, fetched 2026-10-01 |
| Adult M | Port & Company PC61 | Sleeve length | 17.75 | 45 (converted) | www.sanmar.com/p/1634_Lime/specSheetMeasurements, Product Measurements 'Sleeve Length from Center Back' row, fetched 2026-10-01 |
| Adult M | Port Authority K500 | Sleeve length | 20.75 | 53 (converted) | www.sanmar.com/p/1225_StrongBlue/specSheetMeasurements, Product Measurements 'Sleeve Length from Center Back' row, fetched 2026-10-01 |
How does a medium compare with a small and a large?
One size down and one size up, same brands.
| Size | Brand and style | Measurement | Inches | cm | Source |
|---|---|---|---|---|---|
| Adult S | Bella+Canvas men's/unisex | Body chest it fits | 34-37 | 86-94 (converted) | bellacanvas.com/fit-size-charts, "Men's/Unisex Chest" row, fetched 2026-10-01 |
| Adult S | Gildan 5000 | Body chest it fits | 36-37 | 91-94 (converted) | www.sanmar.com/p/625_Black/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
| Adult S | Port & Company PC61 | Body chest it fits | 35-37 | 89-94 (converted) | www.sanmar.com/p/1634_Ash/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
| Adult S | Port & Company PC61 | Body chest it fits | 35-37 | 89-94 (converted) | www.sanmar.com/p/1634_Lime/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
| Adult M | Bella+Canvas men's/unisex | Body chest it fits | 38-41 | 97-104 (converted) | bellacanvas.com/fit-size-charts, "Men's/Unisex Chest" row, fetched 2026-10-01 |
| Adult M | Gildan 5000 | Body chest it fits | 38-40 | 97-102 (converted) | www.sanmar.com/p/625_Black/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
| Adult M | Port & Company PC61 | Body chest it fits | 38-40 | 97-102 (converted) | www.sanmar.com/p/1634_Ash/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
| Adult M | Port & Company PC61 | Body chest it fits | 38-40 | 97-102 (converted) | www.sanmar.com/p/1634_Lime/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
| Adult L | Bella+Canvas men's/unisex | Body chest it fits | 42-45 | 107-114 (converted) | bellacanvas.com/fit-size-charts, "Men's/Unisex Chest" row, fetched 2026-10-01 |
| Adult L | Gildan 5000 | Body chest it fits | 42-44 | 107-112 (converted) | www.sanmar.com/p/625_Black/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
| Adult L | Port & Company PC61 | Body chest it fits | 41-43 | 104-109 (converted) | www.sanmar.com/p/1634_Ash/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
| Adult L | Port & Company PC61 | Body chest it fits | 41-43 | 104-109 (converted) | www.sanmar.com/p/1634_Lime/specSheetMeasurements, Size Chart 'Chest' row, fetched 2026-10-01 |
What is a women's medium in numbers?
The number sizes printed under a women's medium.
| Size | Brand and style | Numeric size | Source |
|---|---|---|---|
| Women's M | Bella+Canvas women's Jersey & Rib | 6-8 | bellacanvas.com/fit-size-charts, "Jersey & Rib" row, fetched 2026-10-01 |
| Women's M | Bella+Canvas women's Relaxed | 6-10 | bellacanvas.com/fit-size-charts, "Relaxed" row, fetched 2026-10-01 |
| Women's M | Port & Company LPC54 | 8/10 | www.sanmar.com/p/6464_AthlMaroon/specSheetMeasurements, 'Size' row, fetched 2026-10-01 |
| Women's M | Port & Company LPC54 women's | 8/10 | www.sanmar.com/p/6464_JetBlack/specSheetMeasurements, 'Size' row, fetched 2026-10-01 |
What chest does a women's medium fit?
Body bust on women's cut tees.
| Size | Brand and style | Measurement | Inches | cm | Source |
|---|---|---|---|---|---|
| Women's M | Gildan 5000L women's | Body bust it fits | 36.25-37.25 | 92-95 (converted) | www.sanmar.com/p/6478_Navy/specSheetMeasurements, Size Chart 'Bust' row, fetched 2026-10-01 |
| Women's M | Port & Company LPC54 | Body bust it fits | 37-38 | 94-97 (converted) | www.sanmar.com/p/6464_AthlMaroon/specSheetMeasurements, Size Chart 'Bust' row, fetched 2026-10-01 |
| Women's M | Port & Company LPC54 women's | Body bust it fits | 37-38 | 94-97 (converted) | www.sanmar.com/p/6464_JetBlack/specSheetMeasurements, Size Chart 'Bust' row, fetched 2026-10-01 |