Men’s Long Sleeve Tee Size Chart: Complete Guide

Choosing the right men’s long sleeve tee size is much easier when you know your actual measurements. Instead of relying only on S, M or L, start with your chest measurement and then check the sleeve and body length if those measurements are available.

The chart below gives a useful general starting point.

Men’s Long Sleeve Tee Size Chart

Size	Chest
XS	32–34 in (81–86 cm)
S	35–37 in (89–94 cm)
M	38–40 in (97–102 cm)
L	41–43 in (104–109 cm)
XL	44–46 in (112–117 cm)
XXL	47–50 in (119–127 cm)

These measurements are general guidelines. Sizing can vary between brands, cuts and countries, so the size chart for the specific long sleeve tee you are buying should always take priority.

How to Measure Your Chest

Use a soft measuring tape and wrap it around the fullest part of your chest, usually just under the armpits.

Keep the tape:

• level around your body;
• comfortably close to the skin;
• not pulled excessively tight;
• over a thin T-shirt or directly over the body.

Once you have the measurement, compare it with the chest ranges in the size chart.

Why Sleeve Length Matters

A long sleeve tee can fit perfectly around the chest but still feel wrong if the sleeves are too short.

For a classic fit, sleeves should usually finish around the wrist bone when your arms are relaxed. If you have particularly long or short arms, check the garment’s sleeve measurement whenever possible.

Remember that brands may measure sleeve length differently. Some measure from the shoulder seam, while others measure from the center back of the neck.

What About Body Length?

For a regular men’s long sleeve tee, the hem should normally cover the waistband and finish around the upper-to-mid hip area.

Taller men may find that the correct chest size is still too short in the body. If that happens regularly, look for tall sizing or compare the garment length with a tee you already own.

What If You Are Between Two Sizes?

If your measurement falls between two sizes, think about the fit you prefer:

• Choose the smaller size for a closer, more fitted look.
• Choose the larger size for more room, easier movement or layering.

If the long sleeve tee is already described as oversized or relaxed, you may not need to size up.

Regular Fit vs Slim Fit vs Oversized

The same size can feel completely different depending on the cut.

• Slim fit: closer around the chest, waist and arms.
• Regular fit: comfortable with moderate room around the body.
• Relaxed fit: wider through the chest and waist.
• Oversized fit: intentionally wider and often longer, usually with dropped shoulders.

Always read the product description along with the size chart.

Best Way to Choose Your Size Online

One of the most reliable methods is to take a long sleeve tee you already like and compare its measurements with the product you want to buy.

Lay your tee flat and measure the chest width, body length and sleeves using the same method shown in the store’s size guide.

This often gives a more accurate result than choosing a size based only on height or weight.

Quick Answer

What men’s long sleeve tee size should you choose? Start with your chest measurement. As a general guide, men’s sizes commonly range from about 32–34 inches for XS to around 47–50 inches for XXL.

But the best size is the one that matches both your measurements and the intended fit of the tee. Always check the specific product size chart before ordering.