Get Calibrated˚
3 in 5 adults have a measurable leg length difference, and most never know it. Left unaddressed, small compensations — a tilted pelvis, a curve in the spine, uneven load through the ankle, knee, or hip — may build up over years and contribute to chronic discomfort.
Choose your measurement method.
There's no single right way to measure. Start with what's accessible. If your self-check suggests a discrepancy, confirm it clinically before building your lift stack. *These self-checks are educational tools, not a diagnosis. They can help you decide whether further evaluation makes sense — they can't confirm you have a leg length discrepancy or tell you how to treat one. Only a physician, physical therapist, or podiatrist can do that, typically through a physical exam or imaging.
At-Home Self-Checks
Three options to get a quick estimate of whether you have an LLD and how much.
What you need: a soft tape measure and a friend.
- Lie flat on your back, legs straight and relaxed.
- Find the bony point at the front of each hip (ASIS) and measure straight down to the inside ankle bone (medial malleolus).
- Compare both sides. The difference in millimetres is your anatomical LLD.
Recommended if you only do one test — harder to mess up than a visual check and gives you the closest result.
What you need: a flat hard floor and a stack of flat objects. Can be done solo.
- Stand barefoot, back against a wall, feet flat and weight even.
- Slide a flat object under the heel of the shorter leg.
- Keep adding until your hips look level in a mirror or to a friend watching from behind.
- The total thickness is your functional correction height — a helpful reference point when choosing your HexLift stack.
What you need: a flat floor and a friend.
- Lie on your back, knees bent, feet flat on the floor, heels close to your glutes.
- Have your friend look at your knees from directly side-on.
- If one knee sits noticeably higher, that indicates a visible discrepancy and can suggest where the difference originates — thigh or lower leg.
Standing X-Ray (EOS / Scanogram)
For a cost effective path to get imaging fast, Doctors on telehealth platforms like Sesame Care*, can issue a same-day virtual order for an X-ray or CT scanogram. Mention you're evaluating a suspected LLD & ask if a bone length study is appropriate for you.
Choose our partner to get quick referrals to imaging, and save on Sesame Care.
Sign up for 15% off →*MESA has a paid partnership with Sesame Care and may earn a commission if you book through this link.
GP or Physio Referral
Your doctor may check the same landmarks by hand, or order a standing AP pelvis X-ray or CT scanogram for an exact measurement.
If your doctor treats a difference under 20mm as clinically insignificant, it's worth knowing that a growing body of research points to biomechanical compensation beginning around 5mm — a good thing to raise together, not a reason to skip their evaluation.
You have your number. Now build your lift.
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