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Calorie Calculator

Last updated: June 2026

Calculate Daily Calories

Estimation Results

Maintain weight100% target
2,789
Calories/day
Mild weight loss0.25 kg/week (91%)
2,539
Calories/day
Weight loss0.5 kg/week (82%)
2,289
Calories/day
Extreme weight loss1 kg/week (64%)
1,789
Calories/day

Estimate your daily calorie requirements using Mifflin St Jeor, Harris-Benedict, or Katch-McArdle equations.

⚡ Zigzag Calorie Cycling Schedule

Zigzag calorie cycling helps prevent metabolic adaptation and weight loss plateaus by alternating calorie levels throughout the week. Below are two 7-day zigzag schedules based on your weight loss targets:

Schedule 1: Alternating Weekends

DayMild LossLossExtreme Loss
Sunday3,4143,1642,511
Monday2,1891,9391,500
Tuesday2,1891,9391,500
Wednesday2,1891,9391,500
Thursday2,1891,9391,500
Friday2,1891,9391,500
Saturday3,4143,1642,511

Schedule 2: Gradual Calorie Wave

DayMild LossLossExtreme Loss
Sunday2,2892,0391,539
Monday2,4562,2061,706
Tuesday2,6222,3721,872
Wednesday2,7892,5392,039
Thursday2,7062,4561,956
Friday2,5392,2891,789
Saturday2,3722,1221,622

🏃‍♂️ Activity Level Weight Loss Comparison

Increasing physical activity levels elevates daily calorie expenditure and speeds up weight loss, even while consuming identical maintenance calories. Estimated outcomes:

Exercise RoutineApproximate Weight Loss / Week
Daily light exercise, or intense workouts 3-4 times per week0.2 kg (0.44 lbs)
Intense exercise 6-7 times per week0.7 kg (1.54 lbs)
Very intense exercise daily, or a highly demanding physical job1.2 kg (2.64 lbs)

How it Works & Formula

Daily Calories = BMR × Activity Factor

Calculates the daily calories required to maintain, lose, or gain weight using the Mifflin-St Jeor or Harris-Benedict equation.

Practical Examples

Example 1: Weight Maintenance Plan

An active adult with a BMR of 1,600 calories and moderate exercise (factor 1.55) needs 2,480 calories per day to maintain weight.

Frequently Asked Questions

How do I create a calorie deficit to lose weight?

A daily deficit of 500 calories (through eating less or exercising more) will result in approximately 0.5 kg (1 lb) of weight loss per week.