Measurements
Measurement Guide
Accurate measurements improve fit precision. Required values are enough to start; optional values improve cockpit and stability recommendations.
Preparation
Before You Start
Use this checklist before you start measuring.
Measure barefoot on a hard, flat surface.
Take each measurement twice and use the average.
Ask someone to help for torso, arm, shoulder, and femur.
Use consistent units: centimeters except foot length in millimeters.
Measurements
Work step by step
Start with the required fields, then add optional measurements for a richer fit profile.
Height
Required • Unit: cm • Typical range: 130-210 cm
Tools
Tape measure • Wall • Flat floor
How to measure
- Stand barefoot with heels against a wall and look straight ahead.
- Keep your back and hips lightly touching the wall.
- Place a book flat on your head, mark the wall, then measure to the floor.
Common mistakes
- Measuring while wearing shoes.
- Tilting your head up or down.
Inseam
Required • Unit: cm • Typical range: 55-105 cm
Tools
Tape measure • Hardcover book • Wall
How to measure
- Stand barefoot with feet shoulder-width apart and back against a wall.
- Pull a hardcover book up firmly into the crotch to simulate saddle pressure.
- Measure from the top edge of the book straight down to the floor.
Common mistakes
- Holding the book loosely.
- Measuring from the wrong edge of the book.
Torso Length
Optional • Unit: cm
Tools
Tape measure • Helper (recommended)
How to measure
- Stand naturally in a neutral posture.
- Find the top of your hip bone (iliac crest) and shoulder point (acromion).
- Measure straight-line distance between those two landmarks.
Common mistakes
- Measuring while hunched forward.
- Using different body sides for start and end landmarks.
Arm Length
Optional • Unit: cm
Tools
Tape measure • Helper (recommended)
How to measure
- Relax your shoulders and extend your arm slightly forward.
- Measure from shoulder point (acromion) to the wrist crease.
- Repeat once and average both attempts.
Common mistakes
- Locking the elbow aggressively.
- Measuring around the curve instead of straight-line distance.
Shoulder Width
Optional • Unit: cm
Tools
Tape measure • Helper
How to measure
- Stand upright with relaxed shoulders.
- Measure from one acromion point to the other across your back.
- Keep tape level and straight.
Common mistakes
- Measuring chest width instead of acromion-to-acromion.
- Pulling tape too tight around the body.
Femur Length
Optional • Unit: cm
Tools
Tape measure • Helper
How to measure
- Stand naturally with knees unlocked.
- Locate the hip joint landmark (greater trochanter).
- Measure from hip landmark to center of the knee.
Common mistakes
- Guessing the hip landmark location.
- Measuring to kneecap edge instead of knee center.
Foot Length
Optional • Unit: mm • Typical range: 220-320 mm
Tools
Paper • Pen • Ruler
How to measure
- Stand on a sheet of paper wearing thin socks.
- Mark heel and longest toe.
- Measure between marks in millimeters.
Common mistakes
- Measuring while seated (load is different).
- Using centimeters when input expects millimeters.
Recheck
When To Re-Measure
Repeat your measurements when the quality of the input is uncertain.
If two attempts differ by more than 1 cm (or 5 mm for foot length).
After major body changes, injury recovery, or flexibility improvements.
If recommendations feel inconsistent with your on-bike comfort.
Explore more
Use your measurements immediately
Keep going with related guides and calculators that build on what you just learned.
Bike Fit Calculator
Turn body measurements into a first full bike-fit baseline.
Saddle Height Calculator
Start here when setting saddle height is your first move.
Bike Fitting Methods Explained
See how the measurements feed into the fit methodology.
Calculation Engine Transparency
See how measurement quality and fit logic come together before you open the full bike-fit flow.
Bike Fit for Common Pain Points
Use the symptom hub when your measurements mainly need to solve pain questions.
Next step
Ready to use your measurements?
Save your profile and start a fit session to get your personalized setup.