BMR
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Calorie Deficit Calculator
Use our free Calorie Deficit Calculator to estimate daily calories for weight loss based on your age, gender, height, weight, activity level, and goal.
Health Utility
Calorie Deficit Calculator
Target Calories (Moderate Deficit)
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Live Metrics
Maintenance
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Target (-20%)
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How to use
Use this TDEE calculator in three simple steps
Our workflow is designed to be straightforward, allowing you to complete your task in seconds.
01
Enter your body profile
Provide your age, gender, height, and current weight.
02
Select activity level
Choose the activity level that best matches your weekly routine.
03
Review your targets
Instantly see your maintenance calories and your new daily target for safe weight loss.
BMR Algorithm
Uses validated medical formulas for metabolic base rate.
Activity Scale
Adjust targets based on sedentary to highly active lifestyles.
Safe Deficits
Recommends healthy drop rates to prevent muscle loss.
Private Health Data
Your weight and age parameters never leave your device.
Use cases
Useful for different workflows
Fitness Planning
Calculate calorie deficit targets based on energy usage.
Weight Control
Maintain a steady calorie burn target.
Meal Prep
Determine maximum daily portions to ensure calorie boundaries.
Tool guide
Calorie Deficit Calculator
The Calorie Deficit Calculator is designed to help you estimate exactly how many calories you may need each day to lose weight safely. It works by calculating your Basal Metabolic Rate (BMR) and applying a daily activity multiplier to find your maintenance calories.
Once your maintenance calories are determined, the tool applies a safe, moderate calorie deficit to provide you with a practical daily target. This makes meal planning and macro tracking significantly easier and more effective.
Why Use the Calorie Deficit Calculator?
- Quickly determine your Basal Metabolic Rate (BMR).
- Find your Total Daily Energy Expenditure (TDEE).
- Get a clear, actionable daily calorie goal for weight loss.
- Mobile-friendly for checking on the go or at the gym.
FAQ
Frequently asked questions
What is a calorie deficit?
A calorie deficit occurs when you consume fewer calories than your body burns in a day. It is the fundamental requirement for weight loss.
How much calorie deficit is safe for weight loss?
A safe and sustainable calorie deficit is usually between 300 to 500 calories per day, which generally leads to a weight loss of 0.5 to 1 lb per week.
Is this calorie deficit calculator accurate?
This calculator uses the widely-accepted Mifflin-St Jeor equation to estimate your Basal Metabolic Rate (BMR) and applies an activity multiplier. While highly accurate for estimates, individual metabolism can vary.
Can I use this calculator for weight gain?
Yes! Your maintenance calories are calculated first. To gain weight safely, you can simply add 300 to 500 calories to your maintenance number instead of subtracting.
How often should I recalculate my calories?
It's best to recalculate your calories every 2 to 4 weeks, or whenever you lose a significant amount of weight (e.g., 5-10 lbs), as your maintenance calories will decrease.
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