Shirt Size Calculator
Your shirt size from chest, neck and sleeve measurements.
Enter your values
Enter the chest circumference in in.
Enter the neck circumference in in.
Enter the sleeve length in in.
Choose one of: Slim, Regular, Relaxed.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Casual shirt size
- M
- Dress shirt size
- 15.5 / 34-35
- EU size
- 48
- Chest in cm
- 101.6 cm
- Neck in cm
- 39.4 cm
- Fit note
- Standard cut
Quick answer
Casual shirt size comes from chest circumference; dress shirts are sized by neck and sleeve, e.g. 15.5 / 34–35.
size band from chest and neck measurement
At a glance
| What it does | Your shirt size from chest, neck and sleeve measurements. |
|---|---|
| Category | Everyday |
| Inputs needed | Chest circumference, Neck circumference, Sleeve length, Preferred fit |
| Main output | Casual shirt size |
| Formula | size band from chest and neck measurement |
| Cost | Free — no sign-up, no download |
How to use the Shirt Size Calculator
- 1Measure your chest under the arms at the fullest point.
- 2Measure your neck where a collar sits, plus one finger of room.
- 3Measure sleeve from centre back neck to wrist.
Inputs explained
- Chest circumference(in)
- Enter the chest circumference in in.
- Neck circumference(in)
- Enter the neck circumference in in.
- Sleeve length(in)
- Enter the sleeve length in in.
- Preferred fit
- Choose one of: Slim, Regular, Relaxed.
Worked example
Using the values the calculator loads with:
Inputs
- Chest circumference40 in
- Neck circumference15.5 in
- Sleeve length34 in
- Preferred fitRegular
Results
- Casual shirt sizeM
- Dress shirt size15.5 / 34-35
- EU size48
- Chest in cm101.6 cm
- Neck in cm39.4 cm
- Fit noteStandard cut
Frequently asked questions
How do I measure for a dress shirt?
Neck at the collar line plus a finger's width, and sleeve from the centre of the back of the neck over the shoulder to the wrist bone.
Should I size up for slim fit?
Yes if you're between sizes or have a broad chest — slim cuts run about one inch tighter through the body.
What do I need to enter into the Shirt Size Calculator?
Just 4 values: chest circumference, neck circumference, sleeve length, preferred fit. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Shirt Size Calculator work out the answer?
Casual shirt size comes from chest circumference; dress shirts are sized by neck and sleeve, e.g. 15.5 / 34–35. It applies the formula size band from chest and neck measurement and shows the working so you can check each step by hand.
Is the Shirt Size Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.