The biggest barrier to buying clothes online isn't choice — it's uncertainty about fit. The good news: taking your own measurements accurately takes less time than trying on clothes at a store, and once you know your numbers, you can shop confidently on any size chart.
What You'll Need
- A soft, flexible measuring tape (not a rigid ruler)
- A mirror, or a helper to check the tape is level
- Well-fitted, thin clothing — measure over a t-shirt and leggings, not over a bulky jacket
The Five Measurements Every Size Chart Needs
1. Chest / Bust
Wrap the tape around the fullest part of your chest, under your arms and across your shoulder blades. Keep it snug but not tight, and level all the way around.
2. Waist
Measure around your natural waistline — usually the narrowest point, roughly at your belly button. Don't suck in; measure as you'd stand normally.
3. Hips
Measure around the fullest part of your hips and seat, about 8 inches below your natural waist.
4. Shoulder Width
Measure straight across your back from the edge of one shoulder to the other — this is especially useful for jackets and structured shirts.
5. Inseam
For trousers, measure from your crotch straight down to your ankle bone along the inside of your leg.
Recording and Using Your Measurements
Once you measure yourself accurately one time, you never have to guess again.
Write your five numbers down and save them on your phone — you'll use the same set of measurements for every future purchase, on this site or any other. When comparing to a size chart, match your largest relevant measurement (usually chest or hips) to the chart, since it's easier to take in a slightly loose garment than to force one that's too tight.
Frequently Asked Questions
Should I measure over bare skin or clothing?+
Measure over thin, well-fitted clothing like a t-shirt — this reflects how the new garment will actually sit.
How often should I re-measure myself?+
Body measurements can shift over months, so it is worth re-checking your numbers roughly every six months, or after any significant weight change.
What if my measurements fall between two sizes on the chart?+
Choose based on the garment type — size up for structured or formal wear you want a crisp fit on, and consider the fabric’s stretch for casual knits.