Energy balance calculators
Energy balance calculators — 2 tools, each showing the formula it uses, the source that published it, and the date that source was last checked.
Calorie deficit calculator
A calorie deficit is the gap between the energy you use and the energy you eat. This calculator works out that gap from your estimated maintenance figure, converts it using the 3,500 kcal per pound rule, and shows the correction Hall published in 2008 for why that rule overstates things.
Weight loss calculator
This projects weight change from a daily calorie deficit as a range, not a single figure and not a date. The high end is the straight-line 3,500 kcal per pound arithmetic; the low end applies the 2011 finding by Hall and colleagues that about half of an eventual change arrives in the first year.
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