Viking size chart (kids)
Measured foot + 10 to 15 mm = the size to buy
Viking maps every size to the foot length it fits, growing room included. Measure against a wall in the evening and read the table. If the foot lands at the top of a range, take the next size for winter boots: thick socks eat the margin.
Viking tracks the standard EU scale. The size that fits in Viking is usually the same size that fits in sneakers.
Viking kids sizes
Two quick answers
Do Viking shoes run true to size?
Yes. Viking follows the standard EU scale with growing room already built into each size's foot range.
How much growing room in Viking winter boots?
Viking's own advice is 10 to 15 mm beyond the measured foot; take the next size if the foot is at the top of a range.
Source
Measurements from the manufacturer's own chart, checked August 10, 2026.