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How to back-calculate your real deficit from the scale

How to back-calculate your real deficit from the scale

You logged a 500 kcal deficit, but the scale barely moved. The fix is reverse maths. Turn your weekly weight change into the deficit you actually ran, and read the honest gap between your plan and your body.

1 Aug 2026 · Burnie Academy
deficit scale reverse-maths weekly-average

You logged about 500 kcal of deficit every day this week. You expect the scale to drop fast. Then Sunday comes, and the weight only fell 0.3 kg. Did the maths fail? No. The number you logged is a plan. The scale tells you what really happened. The smart move is to run the maths backwards. Let the scale tell you the deficit you actually ran.

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