I'm sure the experienced guys and gals here have some "tricks" to estimate BF without having to buy tools... and are generally within a percent or two using them.
Any insights you're willing to share? The online calculators don't make a lot of sense to me.
I'm within 5-7% of my ideal, I think. I don't need a tool for that... do I? If your BF is 20%, give or take, why measure? Maybe, more important then?
Out of curiosity. Why would someone go so far as to take a water submersion test?
Just curious.