Avocado Shoes shares its size guide ensuring healthy relationships. We’re committed to helping you find the perfect shoes for everyone in the family. Simply use measuring tape to measure your feet at home. Pro tip: measure both feet! One foot is often larger than the other. You should purchase the size that fits the largest foot. And with our Easy return policy, if you’re not satisfied with the fit, you can return or exchange at any store, at any time. Use the shoe size conversion tables below to convert UK shoe sizes to US sizes and EU shoe sizes to US sizes.