How Many Calories Do You Burn a Day?
Published 9/30/2025 · 2 min read · Health calculators
Most adults burn roughly 1,600–2,400 calories a day, depending on size, sex and activity. About 60–70% of that is your basal metabolic rate — the energy just to keep you alive at rest — plus what you burn digesting food and moving. A rough estimate multiplies your BMR by an activity factor from 1.2 (sedentary) to 1.9 (very active).
Most adults burn 1,600–2,400 a day, mostly just staying alive. Here's the three parts of daily burn, typical totals, and how to estimate yours.
The three parts
Your daily calorie burn comes from three sources. The biggest, at about 60–70%, is your basal metabolic rate: the energy your body spends at complete rest to run your heart, brain, lungs and cells. Another 10% or so goes on digesting and processing food. The rest is physical activity — everything from a workout to fidgeting and walking to the kitchen. Only that last slice is really under your daily control.
Typical daily totals
As a broad guide, many women burn around 1,600–2,000 calories a day and many men around 2,000–2,400, but the spread is wide. Three things push the number up: a bigger body (more tissue to run), more muscle (which is hungrier than fat), and more activity. That's why a tall, active person can burn nearly double a small, sedentary one — the figures are personal, not one-size-fits-all.
How it's estimated
The common method has two steps. First estimate your basal rate with a formula such as Mifflin–St Jeor, which uses your weight, height, age and sex. Then multiply it by an activity factor: about 1.2 if you're sedentary, up to roughly 1.9 if you train hard most days. The result is your total daily energy expenditure, or TDEE — the number that matters if you're trying to lose, gain or maintain weight.
Why trackers only estimate
A watch or fitness band can't measure calories directly; it infers them from heart rate, movement and your profile, so its numbers are educated guesses that can be off by 20% or more, especially for strength work. That doesn't make them useless — the value is in the trend, not the exact figure. If a device consistently shows more active days when you feel you've done more, it's doing its job; just don't treat any single day's calorie count as gospel.
Worked with our own calculator
Calories burned calculator
Given
- Activity
- Running
- Weight (kg)
- 77
- Duration (min)
- 90
Result
- Calories burned
- 1,132 kcal
These figures are produced by the calculator below, not typed in by hand — they are recomputed whenever the tool changes.
Run it on your own figures →Frequently asked questions
- How many calories do I burn a day?
- Most adults burn about 1,600–2,400, depending on size, sex and activity.
- What is BMR?
- Basal metabolic rate: the calories you burn at complete rest just to stay alive.
- How do I estimate my daily calorie burn?
- Multiply your BMR by an activity factor from 1.2 to 1.9.
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This is general wellness information, not medical advice. Calorie estimates vary between people; consult a professional for personalised guidance.
Sources
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