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Calorie Science

250 Calorie Deficit Calculator

See your daily calorie target and weekly weight loss on a small 250-calorie-a-day deficit — the gentlest, most sustainable rate, pre-set to 250 and built around your own maintenance calories.

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

What a 250-Calorie Deficit Gets You

A 250-calorie deficit totals 1,750 calories a week — about half a pound (roughly 0.25 kg) of body fat. It is the gentlest rate on the ladder: slow, but the easiest to sustain, and it rarely pushes intake near the safe floor. Your daily target is TDEE − 250, and the calculator above builds it from your own maintenance calories.

What a 250-Calorie Deficit Gets You

Two hundred and fifty calories below maintenance is the lightest touch on the dial. Across a week it adds to 1,750, and at roughly 3,500 calories to a pound of fat that points to about half a pound lost in seven days. It will not light up the scale, and that is the entire idea: the gap is small enough that the food you give up is barely missed, hunger stays manageable, and energy and training rarely take a hit. The number you eat is your maintenance burn minus the 250, so even quite a small body usually keeps a comfortable intake — this is the rate least likely to bump into the safe-intake floor the calculator enforces. To see the daily target it gives you, enter your details above; to understand the maintenance figure the 250 is subtracted from, the TDEE Calculator estimates it from your weight, height, age, sex and activity.

Why Some People Deliberately Go Slow

Choosing the slow lane on purpose sounds counterintuitive until you look at how diets actually end. The deficit that works is the one you finish, and a steep cut that collapses into a rebound nets less than a gentle one held to the line. A 250 deficit is built to be almost invisible in daily life — a slightly smaller portion here, one fewer snack there — which makes it far easier to carry through holidays, busy weeks and social meals without the all-or-nothing spiral that derails bigger cuts. It is also the kindest to training and mood, because there is enough food left to fuel a workout and keep energy steady. People with less to lose lean on it too, since a small absolute amount of fat does not need a dramatic gap, and the gentler pace keeps progress measured. If you would rather track that progress as a share of your starting weight than as raw pounds, the Weight Loss Percentage Calculator puts your loss in context.

Pairing a Small Deficit With Daily Steps

One quiet advantage of starting small is how much room it leaves to widen the gap through movement rather than more restriction. A 250 deficit on the eating side can be paired with a deliberate daily step habit on the burning side, and the two stack: walking lifts the calories you spend without asking you to cut your plate any further, so the total deficit grows while the food stays comfortable. For a lot of people that is a more durable combination than a single large cut — the diet half feels easy because it is, and the activity half doubles as energy, mood and general health rather than pure willpower. To put a number on what those steps add, the Steps to Weight Loss Calculator translates a daily count into calories, and the Calorie Deficit Calculator lets you compare this gentle rate against the faster ones with your own stats. 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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