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These are the cheapest tools on the site and, used well, some of the most useful. Water doesn't move a caliper reading the way it moves a smart scale.
The simplest caliper you can buy. You pinch one spot above the hip bone, and it clicks when you hit the right pressure. That click removes most of the guesswork. It comes with a chart to turn the reading into body fat.
Research teams have used Slim Guide calipers for years. They read close to pro calipers for much less money. Use it for 3-site or 7-site formulas once you're comfortable.
The caliper many trainers and clinics use. Steady spring pressure and a precise dial. Buy it if you measure clients or want the best tool for home.
A tape you can use alone. It locks around your waist or neck and pulls to the same tension each time. That's what you need for the Navy method on our calculator.
Start with a tape. It works with our body fat calculator and you'll get it right the first time. Add a caliper when you want a second check or when your tape number stops moving but your body keeps changing. For the full picture, see every method compared.