Calculate your road bike frame size
On a road bike you spend hours in the same position, so even one centimetre makes a difference. Calculate your frame height for a road, gravel or triathlon bike and find out whether 50, 54, 56 or 60 cm suits your height.
- Formula: Inseam × 0.665 = frame height (cm)
- Given as: usually in cm or XS–XXL
Road bike frame calculator
- Frame height in cm
- approx. 54 cm
- Frame height in inches
- approx. 21"
These are guide values. Since every manufacturer measures a little differently, it's best to compare the model's stack and reach.
Road bike size chart: road & gravel
| Height | Size | Frame height | Inches | Listings |
|---|---|---|---|---|
| under 160 cm | XS | 47–49 cm | 18.5–19.5" | View bikes |
| 160–170 cm | S | 50–52 cm | 19.5–20.5" | View bikes |
| 170–180 cmYour size | M | 53–55 cm | 21–21.5" | View bikes |
| 180–190 cm | L | 56–58 cm | 22–23" | View bikes |
| 190–200 cm | XL | 59–61 cm | 23–24" | View bikes |
| over 200 cm | XXL | from 62 cm | from 24.5" | View bikes |
Does your dream road bike really fit?
On many listings, the size calculator works out the frame size for that exact model. It also takes riding style, inseam and arm length into account.
What matters with a road bike
Stack & reach
Stack (height) and reach (length) describe the riding position better than frame height. Compare these values when switching brands.
Race or endurance?
Race geometries are low and stretched, endurance models taller and shorter. For long rides, a more upright position is often more comfortable.
Bike fitting pays off
A bike fitting sets saddle height, stem and handlebar width precisely for you. It helps prevent knee and back pain.
Find a dealerFrequently asked questions
Your road bike in size M
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