Free Nutrition Tool
Use this free calorie calculator to estimate maintenance calories, Total Daily Energy Expenditure, calorie deficit targets, and lean bulk calories with Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle formulas.
Fill out your physical details to estimate your daily required calorie intake natively.
Use It Well
This calorie calculator gives you a solid starting estimate, but the best calorie target always comes from the combination of good math and real-world feedback. Use the number, then adjust from actual progress.
Step 1
Use your current body weight, age, height, and a realistic activity level. Inflated activity estimates are one of the most common reasons calorie targets miss.
Step 2
Start close to maintenance if you are unsure, then move into a small deficit for fat loss or a small surplus for muscle gain once you see how your body responds.
Step 3
Review your weekly average body weight, gym performance, energy, and hunger. Those signals tell you whether to keep calories stable or adjust.
Daily Targets
The calculator gives you maintenance calories and nearby goal ranges. Your best target depends on training volume, recovery, appetite, and how quickly you want to change body weight.
Start with a modest calorie deficit that is easier to sustain, then adjust based on weekly scale trends, gym performance, and recovery.
Maintenance calories are the intake that keeps body weight roughly stable over time when average activity stays the same.
A smaller surplus is usually more productive for lean gains because it supports training and recovery without unnecessary fat gain.
Formula Guide
Different formulas estimate resting energy from slightly different assumptions. That is why a good calorie calculator lets you compare methods instead of hiding the math behind one number.
Best default choice for most adults. It is widely used for everyday calorie estimation and is the safest starting formula for general use.
Useful as a comparison estimate if you want a second calorie baseline. It is older, but still common in calculators and coaching tools.
Best when you know your body fat percentage with reasonable accuracy because it uses lean body mass and can fit leaner athletes well.
Related Reading
Internal links help search engines understand topic depth, but they also make this page more useful for real visitors. If someone lands here looking for a calorie deficit calculator, they usually also need programming, recovery, and nutrition context.
Start with the calculator, then learn how to validate maintenance with real body-weight and adherence data.
Understand the difference between resting calorie burn and total daily expenditure before setting a target.
Learn how to choose a fat-loss target that still leaves room for recovery and useful gym performance.
Use a smaller surplus to support muscle gain without turning your bulk into unnecessary fat gain.
Know when to refresh your estimate after body-weight changes, activity shifts, or stalled progress.
See how steps, sleep, and training load can move your real maintenance calories over time.
FAQ
These answers cover the most common questions behind calorie calculator, TDEE calculator, and maintenance calories searches.
BMR is the calories your body uses at complete rest. TDEE starts with BMR, then adds your daily movement, exercise, and general activity to estimate full daily calorie burn.
It is an estimate, not a lab measurement. The formulas are useful starting points, but your real maintenance calories should be confirmed by tracking body weight, intake, and training performance for a few weeks.
Mifflin-St Jeor is the best default for most adults. Katch-McArdle can be a strong option if you have a reliable body fat estimate and want a lean-mass-based calculation.
Recalculate after a meaningful body weight change, a big shift in activity level, or when progress stalls for multiple weeks despite good compliance.
Usually no. More aggressive deficits can reduce recovery, increase hunger, and make training harder to sustain. Smaller adjustments are often easier to maintain and easier to refine.
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