Looking to choose the right size bike for your child? Our calculator is a handy tool to help you make the right decision. Submit their age, height, and in-seam length, and the tool will provide the recommended bike size. Happy cycling!
Bike Size Calculator
Bike Size Calculator – Frequently Asked Questions
What does this calculator do?
This tool helps parents quickly find the right size bike for their child based on age, height (in feet and inches), and inseam length in cm. It gives a clear recommendation for wheel size, so you can feel confident before buying a bike.
Why do you ask for inseam length?
Inseam is one of the most reliable indicators of bike fit. It measures the leg length from crotch to the floor and helps ensure your child can stand over the bike safely and comfortably.
How accurate is it?
This tool gives a very good starting point for most children. That said, it’s always best to test ride where possible, as kids grow at different rates and confidence levels vary.
Can I use this for adults?
This calculator is designed for children and young riders. For adult bike sizing, frame size (in cm or inches) is more important than wheel size. We’re working on a separate tool for that soon!
Where can I buy a bike once I know the size?
We recommend starting with our Second-hand Bike Buying Guide, it’s packed with tips to get a great deal on a quality bike through eBay, Facebook Marketplace, or local shops.
What if my child is between sizes?
If they’re between two wheel sizes:
– Less confident riders often do better with the smaller size.
– Taller or more experienced riders might prefer the larger size to grow into.