Polo Size Calculator

How to measure for a polo shirt

Polo sizing starts with your body, not with the size you wore last time. Measure your chest around the fullest part with a soft tape kept level, measure your waist at its natural point, and note your height. The calculator compares your chest with broad adult ranges and checks your waist as well, so the result fits the widest area that matters. Measure over a thin top, not a thick jumper, because a polo is usually worn on its own or over a thin undershirt.

Fit, length, collar and fabric then shape the final choice. Two people with the same chest measurement can need different polos if one wants a slim fit and the other wants a relaxed fit, or if one wears pique and the other wears stretchy jersey. The collar also matters more on a polo than on a plain tee, because a collar that gapes or pinches shows at once.

General polo shirt size chart

The chart below gives broad adult chest ranges in inches. Treat these as general starting ranges, not as brand sizes. Always check the brand chart for the polo you are buying, because brands grade chest, length and collar differently.

If your chest falls below 31 inches or above 48 inches, the chart cannot give you a precise starting size. In that case, use the nearest end of the chart as a rough guide and rely on the brand chart and the stated garment measurements instead. If your chest and waist point to different sizes, start with the larger size, since a polo that pulls at the waist or placket looks wrong even when the chest feels right.

Polo length: tucked versus untucked

Polo length is a styling choice as well as a fit choice. Worn untucked, a polo should usually end around mid fly, with a hem that sits level front and back. If the front rides up when you sit, or the back flares out, the length or the waist fit is off. A shirt tail hem, longer at the back, is common on polos made to be tucked, so judge the front length and the back length separately.

Worn tucked, a polo needs enough length to stay in place. A body that is just long enough when you stand may pull out when you sit or bend. If you plan to tuck most of the time, favour a regular length over a short one, and check that the waist is not so tight that tucking creates bunching. When you size up for a relaxed fit, remember that length grows with size, so an untucked relaxed polo can look longer than you intended.

Collar and placket fit

The collar is the most visible part of a polo. It should lie flat around the neck, with both collar points resting on the chest, not curling up or standing away from the neck. When the top button is fastened, the collar should close without strain and without a gap at the front. When it is left open, the collar should still hold its shape and frame the neck neatly.

Check the placket as well. The button placket should lie flat down the chest, with no pulling between buttons and no gaping when you move your arms. If the placket pulls open, the chest or waist is usually too tight, even if the collar itself feels fine. Buttons should fasten easily; a button that needs force to close is a sign the polo is too small at that point.

Pique versus jersey fabric

Pique is the classic polo fabric: a textured knit with a small woven pattern that holds its shape well. It feels structured, keeps the collar standing neatly, and drapes in a clean line rather than clinging. The trade off is stretch. Pique gives less than jersey, so a pique polo that is borderline at the chest will feel firmer, and it is less forgiving if you fall between sizes.

Jersey is smoother and stretchier. It follows the body more closely, feels softer, and gives a little at the chest and waist. That extra give can make a slim jersey polo comfortable where the same size in pique would pull. The trade off is shape: jersey can cling where pique would hold a clean line, and a jersey collar may need more care to stay flat after washing. If you are between sizes, lean to the larger size in pique and judge jersey on how it sits, not just on stretch.

Sleeve fit: above the elbow

Polo sleeves are short, and they should end above the elbow, usually around mid upper arm. The sleeve should sit flat around the arm without cutting in and without hanging loose like a wide tube. Raise your arm and bend your elbow: the sleeve should move with you and settle back, not ride up sharply or pull at the shoulder seam.

If the sleeve ends below the elbow on a regular polo, the size is often too large or the cut is long for your arm. If it cuts into the upper arm or pulls the shoulder seam toward your neck, the sleeve or the chest is too tight. A slim polo will have a narrower sleeve by design, but it should still let you bend your arm comfortably.

What to do when between polo sizes

Falling between sizes is normal, because size ranges have gaps at their edges. If you want a slim look, or you will wear jersey, the smaller size is often the better starting point. If you want a relaxed look, you wear pique, or you plan to tuck the polo, the larger size is usually better, since it gives length and room at the waist.

Whichever you try first, check the same four places: the chest should not pull when you move your arms, the placket should lie flat, the collar should close without strain, and the hem should sit level when worn the way you plan to wear it.

Signs a polo is too small

• The chest or placket pulls tight or gaps between buttons when you move.
• The collar pinches the neck or will not close without force.
• The sleeve cuts into the upper arm or pulls the shoulder seam inward.
• The hem rides up when you sit, or pulls out at once when tucked.

Signs a polo is too large

• The shoulders sit well past your natural shoulder line.
• The sleeves hang loose and fall toward or below the elbow.
• The body hangs far below mid fly when worn untucked.
• The collar gapes open or the collar points will not lie flat.

How to choose polo size online

Shopping online removes the fitting room, so measurements matter even more. Take fresh measurements, use the calculator for a starting size, then open the brand chart and compare your chest measurement with the full row for that brand, not just the size letter. If the brand also lists garment length, sleeve length and collar or neck size, compare those too, especially if you plan to wear the polo tucked or you have a larger or smaller neck than average for your chest size.

Read the fit notes as well as the chart. A brand that describes a polo as slim has already built a closer cut into its sizes, so sizing up again on top of that can leave you with more room than you wanted. A brand that describes a polo as relaxed has already added room, so your regular starting size may already give the relaxed look you want.

Common polo sizing mistakes

• Choosing by your usual size letter without checking the brand chart.
• Measuring over a thick layer and then wearing the polo on its own.
• Judging length only when standing, and not when sitting or tucked.
• Ignoring the collar and placket and only checking chest width.
• Sizing up two sizes for a relaxed look and getting sleeves and length that are far too long.
• Assuming pique and jersey in the same size will feel the same.