How to Measure Your Feet at Home (2026 Guide)

Most people wear the size they wore a decade ago. Feet don't agree. They get longer, and they get wider — and the number stamped inside your last pair is probably not your number anymore. If shoes never seem to fit quite right, the problem often isn't the shoe. It's that you've been buying the wrong size for years without knowing it.

The good news: you can find your true size at home in about ten minutes, with paper, a pen, and a ruler. Here's the step-by-step.

How to measure your feet at home, step by step

If you only read one section, read this one. Here is the whole method:

Tape a sheet of paper to a hard floor (not carpet — carpet distorts the trace).
Stand on it with your full weight on the foot. Sitting down gives a smaller, inaccurate outline.
Trace around the foot holding the pen straight up and snug against the skin.
Measure the length — heel to the tip of the longest toe — in millimetres or inches.
Measure the width — straight across the widest part of the foot (usually the ball).
Repeat for the other foot, then compare both numbers to a size chart.

That's it. The rest of this guide explains why each step matters and how to read the result — because a measurement you can't interpret doesn't help you.

Why "what size am I?" is harder than it sounds

People treat shoe size like a fixed fact, the way they treat their height. It isn't. Feet are living structures, and they change across a lifetime.

Two things happen as the years pass. First, feet lengthen slightly. Second — and this is the one almost nobody accounts for — feet widen and flatten. The ligaments that hold the arch and the forefoot together gradually relax, so the foot spreads. Age does it. Pregnancy does it, sometimes permanently. Weight change does it. Years of standing on hard floors do it.

The result is that a huge share of people are quietly in the wrong size — and they're wrong in a predictable direction. They're in shoes that are too small and too narrow, because they anchored to a number from years ago and the foot moved on without telling them. That's why measuring matters, and why measuring both dimensions matters even more.

The mistake almost everyone makes: measuring only length

Ask someone their shoe size and they'll give you one number. That number is length. But a foot has two dimensions that matter, and width is the half of the story most people never measure.

Length tells you the shoe won't be too short. Width tells you whether the shoe will pinch across the ball of your foot, where the foot is broadest and does the most work. You can have a perfectly correct length and still be in a shoe that squeezes your forefoot all day — and that squeeze is behind a lot of "these shoes just aren't comfortable" complaints.

So when you trace and measure, get both. Length, heel to longest toe. Width, straight across the widest part. Write both down for each foot.

The practical rules that change your result

A measurement is only as good as the conditions you take it in. Four rules:

Rule	Why it matters
Measure both feet, use the larger	Almost everyone has one foot bigger than the other; fit the bigger one
Measure at the end of the day	Feet swell over a day — an evening measurement reflects real wearing size
Wear the socks you'll actually walk in	A thick walking sock changes the fit; measure for reality, not best case
Stand with full weight on the foot	A loaded foot is longer and wider than a relaxed one — trace it loaded

Skip these and you can easily land a half-size off, which is exactly enough to make a good shoe feel bad.

Decoding width: standard, wide, and extra-wide

Once you have a width number, you need to know what it means. Width is graded with letters, and for everyday walking shoes the three you'll meet most are:

Standard (D for men, B for women) — the default most shoes are built to.
Wide (2E) — noticeably broader through the forefoot.
Extra-wide (4E) — broader still, for genuinely wide feet.

You don't always need a tape measure to know you're in the wrong width. The everyday signs are clear:

Pinching or aching at the widest part of the foot by the end of the day.
Pressure marks or red lines on the side of your foot when you take the shoe off.
Your foot visibly spilling over the edge of the sole.
Numbness or tingling across the forefoot — a strong sign the shoe is too narrow.

If two or more of those sound familiar, measure your width and look seriously at a wide option. Plenty of people have spent years assuming all shoes are uncomfortable when they were simply never in the right width.

Reading your measurement against a size chart

Now take your two numbers — length and width, larger foot — and compare them to the brand's size chart. Charts vary between brands, so always use the chart for the shoe you're actually buying, and check whether it lists width as well as length. Good ones do.

What if you fall between sizes? For walking shoes, size up. A walking foot needs room — it swells over a long walk, and the toes need space to move forward and splay with each step. A shoe that's snug in the store will feel tight on a three-mile walk. There should be about a thumbnail's width of space between your longest toe and the end of the shoe.

Measuring tells you the number. How the shoe should then feel on your foot — heel hold, midfoot snugness, toe room — is the next step. Our guide on how walking shoes should fit covers that in full, and once you've got the right size, the right lacing can fine-tune the last few details.

One more note: if you plan to add an insole, remember that an aftermarket insole takes up volume. Measure and size first, then account for the insole — our arch support insoles guide explains how that interacts with fit.

Where to take your measurement next

An accurate measurement only pays off if you can buy a shoe that comes in your size and your width. Many brands stop at length, which leaves wide-footed shoppers stuck.

If you're shopping walking shoes, look for a true-to-size build and real width options. New Balance publishes detailed length-and-width charts and offers wide sizes across many models. Skechers runs roomy on a number of its GO WALK styles. And the FitVille Rebound Core V9 ($79.99) is built true to size with a mesh upper and a wide toe box, offered in standard, 2E (wide), and 4E (extra-wide) — so once you've measured both length and width, there's a fit that actually matches the number you found. It also has a removable insole, so you can swap in your own without losing the size you measured for.

The point is the same whichever brand you choose: measure first, then buy a shoe that respects both numbers.

Shop comfortable walking shoes in standard, wide & extra-wide →

Use code AFS25 for 25% off sitewide.

FAQ

How do I measure my foot size at home?

Tape paper to a hard floor, stand with full weight on it, and trace around your foot with the pen held straight up. Measure the length from heel to longest toe, and the width across the widest part. Do both feet, use the larger numbers, and compare them to the size chart of the shoe you're buying.

How do I know if I need wide shoes?

Look for the signs: pinching at the widest part of your foot, red pressure marks on the side after taking shoes off, your foot spilling over the sole edge, or numbness across the forefoot. If you measure your width and it lands beyond the standard column on a size chart, a 2E or 4E width will likely feel far better.

Why has my shoe size changed?

Feet lengthen slightly and — more noticeably — widen and flatten over time as the supporting ligaments relax. Age, pregnancy, weight change, and years of standing all contribute. It's a normal change, which is why it's worth re-measuring every couple of years rather than trusting an old number.

Should I size up for walking shoes?

If you're between sizes, yes. A walking foot swells over distance and the toes need room to move and splay, so a shoe that feels perfect standing still can feel tight on a long walk. Aim for about a thumbnail's width of space in front of your longest toe.