Maintenance Calories Chart by Activity Level

Total daily energy expenditure — the number usually called maintenance calories — is estimated by multiplying basal metabolic rate by a single activity factor. The five factors below are the standard set used across dietetic practice and by essentially every online calculator. If you do not know your BMR, the BMR chart gives it by age, weight, and height.

This is where nearly all the error in the chart comes from. The labels sound like personality descriptions, so people choose aspirationally. The factors below are defined by structured exercise per week, and they already include normal daily movement — walking to the shops, housework, standing at a desk — so those should not be counted as training.

A useful rule of thumb: most people who work a desk job and train three or four times a week belong on lightly active or moderately active, not very active. The athlete factor is for genuine twice-daily training, not for training hard once a day.

The gaps between the columns are large enough to swallow an entire diet. At a BMR of 1,700 calories, this is what each step up the ladder adds:

Two observations worth taking away. First, one step is worth roughly 300 calories a day, which is the size of a typical fat-loss deficit — so choosing the wrong activity level can cancel out a diet entirely, or create one you did not intend. Second, the full span from sedentary to athlete is a factor of 1.58, meaning the most active version of you needs over 50 percent more food than the least active version, at exactly the same body size.

Because of that sensitivity, the honest way to use this chart is as a starting estimate to be tested. Pick the level you think fits, eat at that intake for two to three weeks while tracking weight, and adjust from what actually happens. Our guide on why TDEE calculators are estimates sets out the calibration process in detail.

Maintenance is the pivot point: eat there and body weight is stable, eat below it and you lose, above it and you gain. Common practice is a deficit of 15 to 25 percent of maintenance for fat loss and a surplus of 5 to 15 percent for muscle gain, with the rate rather than the direction being the thing to get right.

A worked example. Someone with a BMR of 1,600 who trains four times a week reads 2,480 calories on the moderately active column. A 20 percent deficit is about 1,984 calories a day, which on the 7,700 calories-per-kilogram model predicts roughly 0.45 kg of loss a week. The calorie deficit calculator runs that arithmetic for any pace you choose, and the macro calculator splits the result into protein, carbohydrate, and fat.

Multiplying BMR by a single number is a simplification of something genuinely complicated, and it is worth knowing how it fails.

• It bundles three different things together. Real daily expenditure is the sum of resting metabolism, the energy cost of digesting food, deliberate exercise, and unconscious movement. The last of those varies by hundreds of calories a day between people of the same size and is not something a five-point scale can capture.
• The factors are conventions, not measurements. The 1.2 to 1.9 range is long-standing practice rather than a value derived from one definitive study, and different sources assign slightly different numbers to the same labels.
• Expenditure adapts. Sustained dieting reduces total expenditure by more than the weight loss alone predicts, partly through reduced spontaneous movement. Maintenance is a moving target during a diet, not a fixed line.
• Exercise is not fully additive. Adding training to a week does not increase total expenditure by the full measured cost of the sessions, because people often move less at other times. Do not add both an activity multiplier and your logged workout calories — that double-counts.