Shirts & T-shirts Fit Calculator

Enter your measurements to find your perfect size.

Find My Size

 

We have all been there: You order a "Large" t-shirt online, and when it arrives, it fits like a tent. Or worse, you order a "Medium" button-down that looks great but is so tight around the stomach you can't sit down.

Sizing varies wildly between brands. A "Medium" in a streetwear brand might be an "Extra Large" in a luxury European brand. That is why relying on S/M/L labels is a mistake. The only way to get a perfect fit is to buy based on your body measurements.

We built the Fit Calculator above to analyze your Chest and Waist measurements and recommend the standard industry size that will actually fit your body.

How to Measure Yourself Correctly

For this tool to work, you need accurate numbers. Grab a flexible tape measure and follow these two steps. Do not guess!

1. Measuring Your Chest (The most important number)

• Lift your arms slightly.

• Wrap the tape measure around your torso, going right under your armpits.

• The tape should cross over the widest part of your chest and shoulder blades.

• Keep the tape level and snug, but not tight. Relax your arms down before reading the number.

2. Measuring Your Waist (Not your pant size!)

• Crucial Tip: Do not use your jean size (e.g., 32 or 34). Pant sizes are often "vanity sized" and sit lower on the hips.

• Measure around your natural waistline. This is usually at the level of your belly button, or the narrowest part of your torso.

• Do not suck your stomach in. Stand naturally to ensure the shirt won't pull when you sit down.

Understanding "The Drop"

"The Drop" is a tailoring term referring to the difference between your chest and waist measurements.

• Standard Drop (6 inches): A 40-inch chest and 34-inch waist. This is the "Regular Fit" most brands design for.

• Athletic Drop (8+ inches): A broad chest and narrow waist. You may need "Slim Fit" shirts to avoid excess fabric around the stomach.

• Negative Drop: If your waist is larger than your chest, always size up to fit your waist comfortably. Our calculator automatically detects this and suggests a larger size to ensure comfort.

Fit Types: Regular vs. Slim vs. Relaxed

Once you know your size (e.g., Large), you need to choose the "Cut."

• Slim Fit: Higher armholes, tapered waist. Best for athletic builds. If you buy a Slim Fit, stick to your calculated size.

• Regular Fit: Straight cut with a little room for movement. Good for most body types.

• Relaxed / Oversized: Shoulders are dropped and the body is boxy. If you want this look, you don't need to size up; the designer has already added the extra fabric.

Frequently Asked Questions

What if I am between sizes? For T-shirts (cotton), always size up. Cotton shrinks slightly in the wash. For dress shirts (synthetic blends), you can stick to the smaller size if you prefer a sharp, modern look.

My chest says Large, but my waist says XL. Always dress for your largest measurement. If your chest fits a Large but your waist needs an XL, buy the XL. It is much easier to have a tailor take in the chest than it is to stretch a shirt that is too tight around the stomach.

How do I convert Inches to CM? You don't need to do the math. Just toggle the switch at the top of our calculator to "CM" and input your metric measurements directly.