The Challenge
You found a jacket on a European site listed as size 102cm chest. Is that a US Large or XL? A tailor measured you at 97cm — what does that map to in US sizing? Japanese brand sizing runs small and lists chest in centimeters; US brands list S/M/L with no measurement. Getting this wrong means returns. The formula is simple: divide centimeters by 2.54 to get inches. 92cm = 36 inches, 97cm = 38 inches, 102cm = 40 inches. But clothing sizes are not just math — a 102cm chest is a US Large at most American brands and a European 52 in Italian tailoring. The chart below maps both.
Men's Chest Size Chart: cm to Inches and US Sizes
| US Size | Chest (cm) | Chest (inches) | EU Size | Italian Size |
|---|---|---|---|---|
| XS | 82–86 cm | 32–34 in | 42–44 | 42–44 |
| S | 87–92 cm | 34–36 in | 46–48 | 46–48 |
| M | 93–98 cm | 37–39 in | 48–50 | 48–50 |
| L | 99–104 cm | 39–41 in | 50–52 | 50–52 |
| XL | 105–110 cm | 41–43 in | 54–56 | 54–56 |
| 2XL | 111–116 cm | 44–46 in | 56–58 | 56–58 |
| 3XL | 117–122 cm | 46–48 in | 58–60 | 58–60 |
| 4XL | 123–128 cm | 48–50 in | 60–62 | 60–62 |
Women's Bust/Chest Size Chart: cm to Inches and US Sizes
| US Size | Bust (cm) | Bust (inches) | EU Size | UK Size |
|---|---|---|---|---|
| XS (0–2) | 79–83 cm | 31–33 in | 32–34 | 4–6 |
| S (4–6) | 84–88 cm | 33–35 in | 36–38 | 8–10 |
| M (8–10) | 89–93 cm | 35–37 in | 40–42 | 12–14 |
| L (12–14) | 94–99 cm | 37–39 in | 44–46 | 16–18 |
| XL (16) | 100–105 cm | 39–41 in | 48–50 | 20 |
| 2XL (18–20) | 106–111 cm | 42–44 in | 50–52 | 22–24 |
| 3XL (22–24) | 112–117 cm | 44–46 in | 54–56 | 26–28 |
Exact cm to Inches Reference for Chest Measurements
| Centimeters | Inches (exact) | Nearest 1/4 inch |
|---|---|---|
| 80 cm | 31.496 in | 31 1/2 in |
| 82 cm | 32.283 in | 32 1/4 in |
| 84 cm | 33.071 in | 33 1/16 in |
| 86 cm | 33.858 in | 33 7/8 in |
| 88 cm | 34.646 in | 34 5/8 in |
| 90 cm | 35.433 in | 35 7/16 in |
| 92 cm | 36.220 in | 36 1/4 in |
| 94 cm | 37.008 in | 37 in |
| 96 cm | 37.795 in | 37 13/16 in |
| 98 cm | 38.583 in | 38 9/16 in |
| 100 cm | 39.370 in | 39 3/8 in |
| 102 cm | 40.157 in | 40 3/16 in |
| 104 cm | 40.945 in | 40 15/16 in |
| 106 cm | 41.732 in | 41 3/4 in |
| 108 cm | 42.520 in | 42 1/2 in |
| 110 cm | 43.307 in | 43 5/16 in |
| 112 cm | 44.094 in | 44 1/16 in |
| 116 cm | 45.669 in | 45 11/16 in |
| 120 cm | 47.244 in | 47 1/4 in |
| 124 cm | 48.819 in | 48 13/16 in |
| 128 cm | 50.394 in | 50 3/8 in |
How to Find Your Chest Size in Inches from a cm Measurement
- Take your chest measurement in centimeters — if you don't have one, measure now before shopping
- Divide by 2.54 — example: 104cm ÷ 2.54 = 40.9 inches, round to 41 inches
- Find 41 inches in the size chart for the specific brand you're buying from
- If you're between sizes, go up for structured garments (jackets, blazers) and down for knits and stretch fabrics
Brand Sizing Differences at the Same Chest Measurement
Garment Measurement vs Body Measurement
Clothing size charts list body measurements, not garment measurements. The actual garment is cut larger to allow movement — this is called ease. A size Medium shirt may measure 104cm across the chest even though the size chart says 93–98cm body measurement. When in doubt, measure the garment flat and double it, then compare to your body measurement.
Step-by-Step Workflow
Measure your chest at the fullest point, tape parallel to the floor
Enter your centimeter measurement in the input field
Read your inch equivalent and compare it to the size chart below
Specifications
- Formula
- inches = cm ÷ 2.54
- XS chest
- ~84cm = 33 in
- S chest
- ~88–92cm = 35–36 in
- M chest
- ~96–100cm = 38–39 in
- L chest
- ~100–106cm = 40–42 in
- XL chest
- ~106–112cm = 42–44 in
- 2XL chest
- ~116–122cm = 46–48 in
Best Practices
- Measure at the widest point of the chest — across the nipple line for men, across the bust apex for women
- Add 2–4cm ease to your body measurement before comparing to garment measurements
- Italian sizing adds 20 to the chest in inches: 38in chest = Italian size 48, 40in = size 50
- UK chest sizing matches US sizing in inches: a UK 40 chest is the same as a US 40
- Japanese and Korean brands often run 4–6cm smaller than European equivalents at the same size label
Frequently Asked Questions
What is 100cm chest in inches and what size is that?
100cm ÷ 2.54 = 39.37 inches, typically a US Large or European size 50. Most US brands label 38–40 inches as Large. At 100cm you're at the upper end of L — if the brand runs slim, size up to XL.
What is 92cm chest in inches?
92cm = 36.2 inches. This is a standard US Small/Medium boundary — most US brands call 36–38 inches a Medium, though some athletic brands label 36 inches as Small. European size 46 in tailoring.
How do I convert a women's chest measurement from cm to inches?
Same formula: divide by 2.54. Women's sizing reference: 81cm=32in (US XS), 86cm=34in (US S), 91cm=36in (US M), 97cm=38in (US L), 102cm=40in (US XL). Note that women's garment chest measurements include more ease than men's — a size M garment may measure 96–98cm even though the body size is 91cm.
Why do the same centimeter measurements produce different letter sizes across brands?
Letter sizes are not standardized internationally. A US Large chest is 42–44 inches at one brand and 40–42 inches at another. European, Japanese, Korean, and Italian brands each use different base measurements. Always convert to centimeters or inches and compare to the specific brand's size chart — never rely on the letter alone.
What is the difference between chest and bust measurement?
Chest typically refers to men's measurement taken across the pectoral muscles. Bust refers to women's measurement taken at the fullest point across the breasts. Both are taken horizontally at the fullest point of the torso, but the positioning differs slightly. For men's shirts and jackets, chest measurement is used directly. For women's tops and dresses, bust is used.
How do I measure my chest correctly for clothing?
Stand straight, arms relaxed at sides. Wrap a flexible tape measure around the fullest part of your chest, keeping it horizontal and snug but not tight — you should be able to slip two fingers under the tape. For men: measure across the nipple line. For women: measure at the fullest part of the bust. Record in centimeters, then divide by 2.54 for inches.