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Calorie Science

750 Calorie Deficit Calculator

See your daily calorie target and weekly weight loss on a 750-calorie-a-day deficit — pre-set to 750, built around your own maintenance calories. Adjust the rate any time.

Calculate Calorie Deficit

Required: the BMR formula uses biological sex (male or female) as a variable, so the estimate can’t be calculated without it.

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Enter your height in centimeters (e.g., 170 cm)

Optional — unlocks your projected goal date and a week-by-week progression timeline in the results below. Your daily calorie target is set by the weekly loss rate, so that number stays the same with or without a goal.

*This calculator is for informational purposes only. Please consult a healthcare professional before making any health decisions. See our medical disclaimer for more information.

Calculations are powered by the Mifflin-St Jeor Equation, the clinical standard in modern metabolic and nutritional science.

Quick Answer

A 750-Calorie Deficit in Weight Terms

A 750-calorie deficit totals 5,250 calories a week — about 1.5 pounds (roughly 0.7 kg) of body fat. It sits between the steady pound a week of a 500 deficit and the faster two pounds of a 1,000 deficit. Your daily target is TDEE − 750, and the calculator above builds it from your own maintenance calories.

750 a Day in Weight Terms

The maths is straightforward: 750 calories short each day is 5,250 across a week, and at roughly 3,500 calories to a pound of fat that points to about a pound and a half lost in seven days. It is a noticeably quicker pace than the popular 500, without leaping all the way to the two-pounds-a-week territory of a 1,000 deficit. As always the number you eat is your maintenance burn minus the 750, so the same deficit leaves very different intakes for different bodies — a higher-burning frame keeps a comfortable target, while a smaller or more sedentary one can find that 750 drops intake toward the safe floor the calculator enforces. To see which side of that line you fall on, enter your details above; if you want to understand the maintenance figure the 750 is subtracted from, the TDEE Calculator estimates it from your weight, height, age, sex and activity.

The Protein and Training Trade-off at This Rate

A wider deficit changes not just how fast the scale moves but what the lost weight is made of. At a gentle gap, most of what leaves tends to be fat; as the deficit grows, the body becomes likelier to pull some energy from lean tissue too, and a 750 deficit is firmly in the range where that share starts to matter. The two levers that tilt the balance back toward fat are familiar ones: enough protein to give the body the building blocks to hold onto muscle, and resistance training to give it a reason to. This page is not the place to hand you a regimen — how much protein and what training fit your life is yours to decide with the usual caveats — but the general shape is well established, and the steeper the deficit the more those two factors carry the outcome. Once you have settled on a daily calorie number, the Macro Calculator splits it into protein, carbs and fat so the food side actually supports holding muscle through the cut.

How 750 Compares to 500 and 1,000

Lined up against its neighbours, 750 is the middle path. A 500 deficit loses about a pound a week and is the easiest of the three to sustain, asking the least of your willpower and leaving the most food on the table. A 1,000 deficit chases two pounds a week but frequently runs into the safe-intake floor and is hard to hold for long. The 750 sits between them at around a pound and a half: quicker than 500, gentler than 1,000, and reachable for more bodies than the larger gap — though it still demands more attention to protein and training than the conservative option. The Calorie Deficit Calculator lets you swap between all three rates with your own numbers, so the trade-off is concrete rather than abstract. These figures are general estimates for healthy adults, not medical advice.

Maintenance calories use the Mifflin-St Jeor equation (1990); the deficit-to-loss estimate uses the 3,500 kcal-per-pound (7,700 kcal/kg) energy equivalent, and the CDC describes 1–2 lb a week as a sustainable pace. All formulas carry a ±10–15% margin and do not account for individual medical conditions.

Frequently Asked Questions

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