Scales that Calculate Body Fat Percentage

[sKZ]

I was wondering how accurate the scales that calculate your body fat and water level are. I want to start a log to keep track of my progress so I need to get accurate readings of my body fat percentage. When I had my body fat measured, it took me in as 14.5% before dinner, 25.5% after dinner, and 15 % this morning before I ate anything. Are these changes typical to body fat percentages, or are the readings erroneous?

The packaging the scale came in says it uses "BIA technology" to calculate fat percentages, which sends a harmless signal through your body.

So, compared to a caliper, just how accurate are these scales?

EDIT: Is this the right place to post this thread?

[FNULNU]

I was wondering how accurate the scales that calculate your body fat and water level are. I want to start a log to keep track of my progress so I need to get accurate readings of my body fat percentage. When I had my body fat measured, it took me in as 14.5% before dinner, 25.5% after dinner, and 15 % this morning before I ate anything. Are these changes typical to body fat percentages, or are the readings erroneous?

The packaging the scale came in says it uses "BIA technology" to calculate fat percentages, which sends a harmless signal through your body.

So, compared to a caliper, just how accurate are these scales?

EDIT: Is this the right place to post this thread?

BF scales are never right.

There is no way your BF would change 10% form eating dinner. Physically/Biologically impossible.

They can be off 5% or more. A set of calipers is cheap.

[sKZ]

Thanks for the quick reply. I just read this thread too
http://forum.bodybuilding.com/showthread.php?t=5493793

Sorry, I cant believe I missed that thread when I was searching for this topic.

How about the body water levels, are those accurate?