Measure your progress and track your success with precision. Unlock your full potential with one simple tool.
Threo caliper measures your body fat percentage accurately. Track your progress, and adjust your fitness routine accordingly.
Accurate and Reliable
Endorsed by the World Natural Bodybuilding Federation
Private and Easy to Use
Inexpensive and convenient
Keep track of your progress without having to spend a lot of money. Practical design and affordable price make this caliper an effortless and cost-effective tool.


Durable construction
Made with high-quality materials, Threo caliper is durable and built to last. It is a worthwhile investment in your fitness journey.
Non-invasive
Unlike other body fat measurements, a body fat measure tester caliper is non-invasive. It does not require the user to immerse themselves in water or use electrical currents.

More reasons to love our caliper
Jamie L. –
Accurately tracks progress. Useful and affordable.
Alex T. –
I love my Threo! It’s so easy to use and has really helped me adjust my workouts. I feel more confident since I’ve been tracking my body fat. It’s super durable and lightweight, so I can take it anywhere!
John D. –
I’ve been using this caliper for a few months now and it’s become a staple in my fitness routine. The measurements are consistent, and the ease of use is unmatched. Worth every penny!
James H –
Easily tracks my progress. Accurate and simple to use.
Laura C –
Good for quick checks. A bit flimsy but reliable.
Jamie –
Delivers precise readings each time. Impressed!
Chris –
Works wonderfully! So glad I got it!
Taylor –
An essential tool for fitness enthusiasts like me. It provides consistent measurements and is very straightforward to use. I highly recommend it for anyone serious about tracking their body fat percentage.
Alex –
Accurate and easy to use. Great value!
Sam –
This body fat caliper has exceeded my expectations. It’s convenient and efficient, allowing me to track my fitness progress consistently. Love that it’s portable!