Calculators

Links to all the calculators that you can use, with or without one of our tests, to get guidance on calories and more

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DEXA Scans
nhanes converter

NHANES Conversion Calculator

You can use this calculator if you need to convert your DEXA scan from a service which used the outdated and misleading NHANES Calibration, such as BodyScan UK. The calculator will give you your real body fat, lean muscle mass, and revised Basal Metabolic Rate.

You will need to have your NHANES DEXA Scan report in front of you to make the conversion.

tdee calc icon

TDEE Calculator

This calculator allows you to very accurately estimate your daily calorie needs for maintenance, based on your specific levels of exercise, work, sleep and more. It is the most comprehensive calculator of its kind. 

As inputs, best results are derived if you have a DEXA Scan or an RMR test result. Otherwise you can still proceed with just age/height/sex/weight.