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How Many Calories Should I Eat to Lose Weight?

By GetHealthyCalculators Editorial Team

There is no universal calorie target for weight loss. The right answer depends on how many calories you burn in a day, how quickly you want to lose weight, and how sustainable the plan feels in real life. For most adults, the best starting point is to estimate TDEE first and then subtract a moderate deficit.

Start with Your TDEE

Your TDEE is your Total Daily Energy Expenditure, or the total calories you burn in a typical day. If you do not know your TDEE, any calorie target you choose is just a guess. That is why the best process starts with the TDEE Calculator.

Choose a Sustainable Deficit

For most people, a daily deficit of 300 to 500 calories is a strong starting point. That usually produces meaningful progress without making hunger, fatigue, and muscle loss much harder to manage. Very aggressive deficits can work short term, but they are harder to sustain and often increase rebound risk.

A Simple Formula

Weight-loss calories = TDEE - 300 to 500 calories per day

If your TDEE is 2,400 calories, a reasonable starting target might be 1,900 to 2,100 calories per day.

Adjust Based on Your Goal

  • Slower, easier pace: use a 250 to 350 calorie deficit
  • Moderate pace: use a 400 to 500 calorie deficit
  • More aggressive pace: use caution and avoid going too low for your size and activity level

Common Mistakes

  • Starting with too low a calorie target
  • Using BMR instead of TDEE
  • Ignoring protein and only focusing on calories
  • Never recalculating after body weight changes

Calories Are Not the Whole Story

Calories drive weight change, but your macro split affects satiety, performance, and muscle retention. If you are dieting, higher protein usually makes the process easier and helps preserve lean mass. That is why it makes sense to combine a calorie target with a macro plan.

What to Do Next

Use the TDEE Calculator first, then set a goal with the Calorie Calculator. After that, use the Macro Calculator to turn your calories into a more sustainable nutrition plan.

Editorial Notes & Sources

Reviewed and updated March 28, 2026 · Prepared by GetHealthyCalculators Editorial Team

This article is written for educational purposes, aligned with evidence-based guidance, and reviewed against the cited sources below before publication or update.

References

  • Clinical guidelines on the identification, evaluation, and treatment of overweight and obesity in adults · National Institutes of Health
  • Nutrition and Athletic Performance · Academy of Nutrition and Dietetics, Dietitians of Canada, and ACSM