Biomechanics Calculator
How much is your
spine carrying?
Enter your details below — we'll calculate the real daily load on your spine in under 30 seconds.
Your Weight
Used to calculate disc compression
Hours per Day
Work + meals + commute
Days per Week
Including weekends
Where You Sit
Chair type affects spinal angle
0
/ 100
—
—
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Your numbers
Daily spinal compression
—
Estimated load on your L3–L4 disc per day (lbs)
Hours sitting per year
—
That's your annual sitting exposure
Back pain risk vs average person
—
Based on sitting hours, chair type and activity level
What this means for you
Your chair is working
against you.
Spinal compression from sitting doesn't go away when you stand up. It accumulates daily, compressing discs, weakening muscles and shifting your posture — often without any pain signal until the damage is done. The fix isn't a new chair. It's correcting the load from inside the one you already have.
300%
more disc pressure
sitting vs standing
sitting vs standing
−38%
load reduction
with Kummo Set
with Kummo Set
Day 1
when most customers
feel the difference
feel the difference
✦ Most Popular
Full Ergonomic Set —
your solution.
Seat Cushion + Back Support Pillow, designed to work as one system. Corrects your sitting position from the bottom up.
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Full Set
Full Set
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Seat Cushion
Seat Cushion
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Back Support
Back Support
LUMEX™ 44D Memory Foam
Adapts to your body in 3 seconds. Holds shape for 2+ years.
Ergonomic Tailbone Cutout
Removes all coccyx contact — zero pressure from the first sit.
Adjustable Lumbar Support
Moves up and down to match your exact spine position.
Breathable Mesh Cover
Anti-bacterial, removable, machine washable. Cool all day.
Your personalised impact
Without Kummo
—
lbs spinal load/day
→
With Kummo
—
lbs spinal load/day
✦ Most Popular
Full Ergonomic Set
Seat Cushion + Back Support Pillow — designed to work as one system. Corrects posture from the bottom up.
$115
$141
Save $26
Free shipping
30-day guarantee
Secure checkout