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How to measure a T-shirt across the chest and in length

Short answer: Measure a T-shirt across the chest from armpit to armpit and in length from the shoulder down. Lay the garment flat and compare the numbers with the size chart. Then you know whether it fits before you order.

What you need

You need a T-shirt that fits you well and a tape measure. Lay the T-shirt flat on a table and smooth out the creases. Then you can take the garment's own measurements instead of your body's. That is the best way to compare.

Measure across the chest

Lay the tape level from one armpit to the other. You double the number if the chart gives the circumference. The fabric must not be pulled, so measure with a light touch. Write the number down and repeat if you are unsure.

Compare with the size chart

Use the two measurements in the chart of the brand you want to buy. For a bamboo T-shirt for women the size guide on the product page is the most important source. If you fall between two sizes, think about whether you like it close or loose.

Measure the length

Measure from the highest point at the shoulder next to the neck down to the hem. Some brands measure at the back, others at the front, so check where the chart measures. A T-shirt meant to sit over the waistband needs a different length from one that reaches the hip.

Brands do not measure alike

Each brand has its own pattern, and you can see it in the different charts. Look, for example, at the chart for Boody when you choose from that brand. Do not rely on an M in one brand matching an M in another.

Shoulders and sleeves

Besides chest and length, shoulder width and sleeve length can decide whether a T-shirt fits well. If the chart has these measurements, measure them on your own T-shirt too. It gives a more accurate comparison and fewer disappointments.

Fabric can change the measurements

A soft fabric gives a little, and in the wash the measurements can change slightly. Wash according to the label and expect the garment to fit a little differently after a few washes. That is a good reason not to choose too tight.

For the rest of the wardrobe

The same method works for other clothes. A measurement you have taken can be used again when you choose bamboo underwear for women or other items. Keep your measurements somewhere so you do not have to measure every time.

Frequently asked questions

How do I measure a T-shirt I already have

Lay it flat, measure across from armpit to armpit and in length from the shoulder down. Compare the numbers with the size chart of the T-shirt you want to buy.

Should I double the chest measurement

It depends on the chart. If it gives circumference, double the number from armpit to armpit. If it gives flat width, use the number as it is.

What if I fall between two sizes

Think about whether you like the T-shirt close or loose. For a loose fit choose the larger size, and for a close fit choose the smaller one.