Calorie Deficit Calculator

Maintenance Calories (TDEE): Weight Loss Goal:

What is a calorie deficit calculator?

A calorie deficit calculator helps estimate how many calories you should eat per day to lose weight based on your maintenance calories.

What is a calorie deficit?

A calorie deficit happens when you eat fewer calories than your body burns. This is the basic principle behind weight loss.

How does this calculator work?

This calculator takes your maintenance calories, also called TDEE, and subtracts a calorie deficit based on your chosen weight loss goal.

What deficit should you choose?

250 calories/day = mild and slower weight loss
500 calories/day = common and moderate weight loss
750 calories/day = more aggressive weight loss

Is a bigger deficit always better?

No. A very large deficit can be harder to maintain and may not be suitable for everyone.

Learn More About Calorie Deficits and Weight Loss

Creating a calorie deficit is the key to losing weight, but small mistakes can slow down or completely stop your progress. Many people believe they are eating less, but hidden calories, poor tracking, or unrealistic expectations often get in the way.

If you want to understand why your weight loss is not working and how to fix it, read this guide:
👉 https://fithealthcalc.com/calorie-deficit-mistakes/

This article explains the most common calorie deficit mistakes and how to correct them so you can see consistent results.

Important note

This calculator gives an estimate, not medical advice. Daily calorie needs vary depending on your health, body composition, and activity level.

Why am I not losing weight in a calorie deficit?

You may not be in a true deficit. Common reasons include underestimating calories, not tracking properly, or eating more on certain days.

Can eating too little stop weight loss?

Yes. Eating too little can lead to low energy, poor consistency, and overeating later, which can slow or stop progress.

How do I know my calorie deficit is working?

If your weight is gradually decreasing over time, your deficit is working. Small fluctuations are normal.

Should I adjust my calories over time?

Yes. As your weight changes, your calorie needs also change. Adjusting your intake helps maintain progress.

Learn More About Meal Timing and Weight Loss

Many people think eating at a specific time is the key to losing weight. You’ve probably heard things like “don’t eat after 8 PM” or “eat every 2 hours to boost metabolism.”

The truth is simple: meal timing is not as important as your total daily calories.

If you are in a calorie deficit, you will lose weight — no matter when you eat.

Meal timing can still help with things like:

Controlling hunger
Avoiding late-night overeating
Building a consistent routine

But it does not replace the need for a proper calorie deficit.

If you want a clear and simple explanation of how meal timing really works, read this full guide:

👉 Does Meal Timing Matter for Weight Loss? (Simple Guide That Actually Works)
https://fithealthcalc.com/does-meal-timing-matter-for-weight-loss/

Understanding this will help you use this calculator more effectively and stay consistent with your weight loss goals.