Body Fat, Four Ways

Start with the tape measure method. It is the one most people can actually repeat at home without buying anything.

Calipers measure something different, the fat directly under the skin at set sites. Expect a different number, not a better one.

The military formula is built to pass or fail people, so it tends to read stricter again. Useful as a second opinion, not a verdict.

BMI knows nothing about your composition, which is exactly why putting it beside the others is informative.

Finish with the one that is not a fat estimate at all. It is a size measure, and seeing it next to the rest makes the difference plain.