Free tools

Weight-loss planning

Calorie Deficit Calculator

Model a daily calorie target from maintenance calories and a weekly weight-loss goal.

Enter your detailsCalorie Deficit Calculator
Your result1,900 calories/day500 calorie daily deficit

Very low calorie targets should be supervised by a clinician.

What a calorie deficit means

A calorie deficit means consuming less energy than your body uses. The calculator uses the common 3,500 calories per pound estimate to model a weekly target.

Why the number changes

As weight changes, maintenance calories often change too. Hunger, medication response, training, and adherence can also shift the real-world deficit.

What to do with the result

Save the number, compare it with your goals, and bring it into the Caliber intake. A clinician-reviewed plan can account for medical history, medications, tolerability, and whether GLP-1 therapy is appropriate.

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