How to Measure Your Foot for the Perfect Shoe Size
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Ordering shoes online means you can't try them on before you buy — but a proper foot measurement gets you almost as close. It takes about five minutes, a few household items, and gives you the two numbers that matter most: length and width.
Here's how to do it right.
What You Will Need
- A blank sheet of paper (larger than your foot)
- A pen or pencil
- A ruler or tape measure
- A flat, hard floor (carpet can throw off the measurement)
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Step 1: Trace Your Foot
Place the paper on the floor against a wall. Stand on the paper with your heel touching the wall, and your weight evenly distributed like you're standing normally — not leaning back or shifting forward. Trace around your foot with the pen held straight up and down (angling it will distort the outline). Repeat for the other foot — most people have one foot slightly larger than the other, and you'll want to size for the bigger one.
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Step 2: Measure the Length and Width
Using your ruler, measure from the back of the heel to the tip of the longest toe (which isn't always the big toe). This is your foot length in inches or centimeters. Measure across the widest part of your tracing, usually right below the toes at the ball of the foot. This gives you your foot width, which matters just as much as length for how a shoe actually feels once you're wearing it.
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Step 3: Measure Later in the Day
Feet naturally swell a bit over the course of the day, so measuring in the afternoon or evening — rather than first thing in the morning — gives you a more accurate everyday size.
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Step 4: Match Your Measurements to a Size Chart
Once you have your length and width, compare them against a brand's size chart rather than assuming your usual size across brands or even across styles within the same brand. Sizing can vary based on the shoe's construction, material, and last (the mold a shoe is built around) — a size 9 in one style won't always fit the same as a size 9 in another.
A Few Extra Tips
- Measure both feet, every time. Foot size can change slightly over the years due to weight changes, pregnancy, or simply aging — it's worth re-measuring periodically rather than assuming your size has stayed the same.
- Wear the socks you would actually wear with the shoe. If you're measuring for boots you'll wear with thick socks, measure with those socks on.
- When in doubt between two sizes, consider how the shoe is meant to fit. A snug boat shoe that will mold to your foot over time behaves differently than a structured boot with little give.
The Bottom Line
A proper foot measurement takes a few minutes and removes most of the guesswork from ordering shoes online. Measure both feet, note your length and width, and check them against the specific style's size chart before you buy — it's the easiest way to make sure your new pair fits right the first time.
