# Bike Frame Size Calculator

> Calculate bike frame size based on inseam.

Page: https://askcalculators.com/calculator/bike-frame-size-calculator/
Definition: https://askcalculators.com/calculator/bike-frame-size-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/bike-frame-size-calculator/schema.json
Version: 7.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/bike-frame-size-calculator/?inseam=30&type=road

## Inputs
- inseam: Inseam Length (inches); type=number; optional; default=30
- type: Type; type=select; optional; default=road

## Outputs
- result: Result; format=text; primary

## Formula
Suggested frame size = inseam × discipline-specific sizing factor, then mapped to a common size label.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.

Notice: Sizing charts differ by brand and region; compare the result with the seller or manufacturer chart.