Shoe Sizing Guide

By Anna Paulina Smith

A good walking shoe should feel comfortable when you try it on. The number on its box is a starting point. Your feet, the shoe’s shape and the way you plan to use it matter more. Fit can vary between brands and even between models from the same brand.

Measure both feet

Start with the socks you expect to wear. Stand on a sheet of paper on a firm floor and ask someone to mark your heel and the tip of your longest toe. Measure that distance for each foot. Mark the widest part of your forefoot as well. Repeat if the outline or measurements seem uncertain. This is a useful starting estimate; a trained fitter can check length, width and fit more accurately.

Use the manufacturer’s own sizing chart. Check whether its measurements describe foot length or the inside of the shoe before choosing a size. Do not add extra length to a chart that already allows for toe room. Fit the larger foot, and try both shoes. Feet can change with age, so an old size is not a permanent rule.

Check length, width and depth

There should be space ahead of your longest toe. Guy’s and St Thomas’ suggests around one centimetre. Your toes also need room above them. A shoe that presses on the tops of your toes may need more depth, not simply a larger size.

Width matters separately from length. If a shoe squeezes the sides of your foot, try a wider fitting or a different shape rather than automatically choosing a longer shoe. Width labels are not consistent across all manufacturers. Check the brand’s chart, then judge the actual fit. The toe box should let your toes rest naturally without squeezing together.

Try a short walk

Lace or fasten the shoes, then walk indoors. Notice rubbing, pressure, heel movement and whether your toes hit the front. Try an incline if the shop has a suitable fitting ramp. A loose heel and a tight forefoot can mean the shoe’s shape does not suit your foot. Adjust the fastening once, then consider another model if the problem remains.

Try shoes with your usual walking socks. If your feet swell during the day, an afternoon fitting can be helpful. Do not buy a painful pair expecting it to become comfortable through wear. Keep an online purchase clean and indoors while checking fit, and read the return conditions first.

Allow for special needs

Bring prescribed orthotics to the fitting. A removable liner can help make room, but check that the insert sits securely and does not push your heel out of the shoe.

Bunions, sensitive toes, swelling or an unusual foot shape may call for a different toe box, greater depth or adjustable fastening. Persistent pain deserves professional assessment rather than repeated guessing at shoe sizes. People with diabetes, reduced sensation, poor circulation, wounds or substantial swelling should ask their clinician or podiatrist for individual footwear advice. This guide cannot assess those conditions.

Before you buy

Check both feet, your intended socks, toe room, side pressure, heel security and comfort while walking. Match the shoe to your usual terrain. A comfortable pavement shoe may not offer the grip you need on a muddy trail. Price and appearance do not prove a good fit. Keep the retailer’s return policy and the manufacturer’s model-specific size chart handy.

Sources

• Guy’s and St Thomas’ NHS — Choosing shoes to reduce foot pain
• Bradford District Care NHS — Footwear advice