Use this calorie calculator to know how many calories your body needs daily and to maintain your current weight or gain weight.
BMR is the number of calories your body burns at rest for important functions. Using the Mifflin-St Jeor Equation function to calculate it:
- For men:
BMR = 10×weight (kg)+6.25×height (cm)−5×age (years)+5 - For women:
BMR = 10×weight (kg)+6.25×height (cm)−5×age (years)−161
Multiply your BMR by activity factor like how often you exercise to get your Total Daily Energy Expenditure (TDEE).
Activity Level | Multiplier |
---|---|
Sedentary (little/no exercise) | 1.2 |
Lightly active (light exercise 1–3 days/week) | 1.375 |
Moderately active (moderate exercise 3–5 days/week) | 1.55 |
Very active (hard exercise 6–7 days/week) | 1.725 |
Extremely active (hard physical job or intense training) | 1.9 |
- To lose weight: Create a calorie deficit by reducing your intake by 500–750 calories daily (aim for 0.5–1 kg weight loss per week). For weight loss reduce your calorie intake.
- To gain weight: Add 250–500 more calories.
How Many Calories Do We Need?
Use this calorie calculator to know your daily calorie intake for your body’s needs. Many people want to lose weight, often by consuming fewer calories. However, the number of calories needed for good health varies based on individual factors, including physical activity levels, many of which are not fully understood.
The number of calories a person needs to stay healthy depends on age, weight, height, sex, physical activities, and overall health. For example, a physically active 25-year-old male who is 6 feet tall needs more calories than a 5-foot-tall, sedentary 70-year-old woman. According to the U.S. Department of Health, for adult males usually 2,000 to 3,000 calories are required per day, while adult females need about 1,600 to 2,400 calories.
While the body can survive on a low-calorie intake, consuming too few calories can lead to poor health as the body focuses on essential functions and neglects overall well-being. Harvard Health Publications suggests women consume at least 1,200 calories and men at least 1,500 calories per day unless under medical supervision. Thus, those trying to lose weight should monitor their caloric needs to maintain proper nutrition.
Meal Plans
Energy from Common Food Components
Food Components | kJ per gram | Calorie (kcal) per gram | kJ per ounce | Calorie (kcal) per ounce |
Fat | 37 | 8.8 | 1,049 | 249 |
Proteins | 17 | 4.1 | 482 | 116 |
Carbohydrates | 17 | 4.1 | 482 | 116 |
Fiber | 8 | 1.9 | 227 | 54 |
Ethanol (drinking alcohol) | 29 | 6.9 | 822 | 196 |
Organic acids | 13 | 3.1 | 369 | 88 |
Polyols (sugar alcohols, sweeteners) | 10 | 2.4 | 283 | 68 |
Calories Burned from Common Exercises:
Activity (1 hour) | 125 lb person | 155 lb person | 185 lb person |
Golf (using a cart) | 198 | 246 | 294 |
Walking (3.5 mph) | 215 | 267 | 319 |
Kayaking | 283 | 352 | 420 |
Softball/Baseball | 289 | 359 | 428 |
Swimming (freestyle, moderate) | 397 | 492 | 587 |
Tennis (general) | 397 | 492 | 587 |
Running (9 minute mile) | 624 | 773 | 923 |
Bicycling (12-14 mph, moderate) | 454 | 562 | 671 |
Football (general) | 399 | 494 | 588 |
Basketball (general) | 340 | 422 | 503 |
Soccer (general) | 397 | 492 | 587 |