How Many Calories Should a Man Eat a Day?
How many calories should a man eat a day? About 2,500 kcal per the NHS; US adult men range from 2,181 to 3,519 kcal by age and activity.
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Every calorie calculator asks for the same things: age, height, weight, sex and how much you move. What comes back is a starting estimate. Two people with identical answers can still burn a few hundred calories a day apart, so treat the number as a first guess.
Two or three weeks of real meals and weigh-ins will tell you more than any formula. Start here for what TDEE, BMR and maintenance actually mean, which one fits your goal, and how to correct it once your own numbers come in. If your meals are already in Calsa, that correction is mostly done for you.
Log my first mealLatest guideCalorie calculators
How many calories over maintenance to gain a pound? About 3,500 kcal by the old rule, but 300–500 kcal a day is the practical surplus. See the math.
Read the guideKey number300–500 kcalextra a day, NHS advice for gaining weight
How many calories should a man eat a day? About 2,500 kcal per the NHS; US adult men range from 2,181 to 3,519 kcal by age and activity.
TDEE for weight loss: eat 500 to 750 kcal below your TDEE, never under 1,200 (women) or 1,500 (men), and expect the deficit to shrink as you lose.
A TDEE calculator with body fat uses Katch-McArdle: 370 + 21.6 × lean mass. See worked examples, three body fat levels and the error in the input.
How many calories should I eat a day by age? Adults need 1,600–2,400 kcal (women) or 2,000–3,000 kcal (men). See the table by age and activity.
How many calories should breakfast be? About 400, or 20–25% of your day. See four breakfasts built from USDA records, from 300 to 600 kcal.
Is 1000 calories a day enough? For most adults no: diet guidelines start women at 1,200 kcal and men at 1,500 kcal. See what 1,000 kcal looks like.
Is 1200 calories enough? Only for small or older women who move little. It sits at least 400 kcal under every adult row of the US table.
Is 1500 calories a day right for you? It fits women who need about 1,600–2,100 kcal and is the floor for most men. See a full day of food.
How many calories per day? About 2,000 kcal for women and 2,500 for men, but a 42-year-old woman at 68 kg can land anywhere from 2,048 to 2,595.
BMR vs TDEE: BMR is the energy you burn at rest (1,395 kcal in our example), TDEE the whole day (2,103–2,642 kcal). See the gap and which one to eat.
How many calories should I eat to lose weight? Maintenance minus 550 kcal for a 0.5 kg pace. See a table for four adults and where the floor takes over.
How to calculate my TDEE: put age, height and weight in the NASEM 2023 equation. A 36-year-old woman at 69.9 kg gets 2,278 kcal. Steps and a log check.