Know Your Numbers.
Own Your Health.
Calculate your daily calories, check the nutrition in any food, and get plans for breastfeeding, pregnancy, weight maintenance and walking. All in seconds, completely free, with no sign-up.
Our Free Health Calculators
Five precision tools that give you clarity over your calories and nutrition. No guesswork, no cost, no friction.
Calorie Calculator
Find your daily calorie target from your age, height, weight, activity and goal, with your BMR, TDEE and macros.
- Mifflin-St Jeor formula
- Lose, maintain or gain goals
- Protein, carbs & fat targets
Food Calories Calculator
Look up the calories and full nutrition of individual foods and ingredients to plan meals with confidence.
- Food & ingredient database
- Calories, protein, carbs & fat
- Great for meal planning
Breastfeeding & Pregnancy Calories
See how many extra calories you need while nursing or in each trimester, with macros, a meal split and water tips.
- Nursing and all 3 trimesters
- Safe, gentle weight goals
- Easy daily meal split
Maintenance Calories Calculator
Learn the calories that keep your weight steady, plus a plan to lose or gain, how long it will take, BMI and a healthy weight range.
- Weekly lose or gain pace
- Time to reach your goal weight
- Macro styles & daily limits
Walking Calorie Calculator
Find out how many calories a walk burns, outdoors or on a treadmill, from your distance, time, speed or steps and the slope.
- Distance, speed, time or steps
- Uphill and downhill slopes
- Fat-loss equivalent of your walk
Why Choose VitaClac
VitaClac was built with a single mission: to make nutrition science accessible to everyone, not just athletes, dietitians, or people who can afford premium health apps. We believe that understanding what you eat and how much energy your body needs is a fundamental part of living well. That’s why every tool on our platform is completely free, with no registration, no data harvesting, and no paywalls hiding the good stuff.
Our calculators are powered by clinically validated formulas like the Mifflin-St Jeor equation for BMR, well-established activity multipliers, and the ACSM walking equation. The results you get here aren’t rough guesses. They use the same standard calculations that registered dietitians and sports nutritionists rely on. We’ve wrapped that science in a clean, fast interface so you can get answers in seconds, on any device, anytime you need them.
How It Works
No downloads, no tutorials, no learning curve. Three steps to the nutrition data you need.
Pick a Calculator
Choose the tool that fits you: calories, food, nursing or pregnancy, maintenance or walking.
Enter Your Details
Add basics like your age, height, weight and activity, or your walk. Your result updates as you type.
Plan Your Nutrition
Use your results to set daily calorie goals, adjust portions and build meals that fit your health objectives.
Understanding Your Daily Calorie Needs
What Are Calories, Really?
A calorie is simply a unit of energy. When you eat food, your body converts it into the energy it needs to breathe, circulate blood, regulate temperature, move muscles, and perform every other function that keeps you alive. The number of calories in a food item tells you how much potential energy it contains. Understanding this is the foundation of any successful nutrition plan, because when you know how much energy you’re consuming versus how much your body actually needs, you gain the power to manage your weight, your performance, and your overall health.
BMR and TDEE: The Numbers That Matter
Your Basal Metabolic Rate (BMR) is the number of calories your body burns at complete rest just to keep your organs functioning, your heart beating, and your lungs breathing. For most people, BMR accounts for 60–75% of total daily calorie expenditure. Your Total Daily Energy Expenditure (TDEE) builds on BMR by adding the calories burned through physical activity, digestion, and daily movement. TDEE is the number that truly matters for weight management: eat fewer calories than your TDEE to lose weight, match it to maintain, or exceed it to gain. You can find yours with our Calorie Calculator or our Maintenance Calories Calculator.
Why Food Calorie Awareness Changes Everything
Most people significantly underestimate how many calories they consume daily. A salad with dressing and toppings can easily contain 700+ calories, and a “healthy” smoothie might pack 500. That’s where our Food Calories Calculator becomes essential: it removes the guesswork by giving you the calorie content and macronutrient breakdown of individual foods. When you can see that a medium avocado has about 240 calories and 22 grams of fat, you start making decisions based on data instead of assumptions.
Special Stages and Staying Active
Calorie needs change during pregnancy and breastfeeding, and our Breastfeeding & Pregnancy Calorie Calculator shows the extra energy each stage typically needs. Movement matters too: walking is the easiest exercise to keep up, and the Walking Calorie Calculator shows how distance, speed and hills change what you burn.
Putting It All Together
The most effective approach to nutrition isn’t about restrictive dieting or obsessive calorie counting. It’s about awareness. When you know your TDEE and understand the calorie density of the foods you eat regularly, you can make adjustments that are small, sustainable, and evidence-based. VitaClac’s calculators are designed to give you a clear, accurate starting point for taking control of your nutrition with confidence.
Stay Updated on Your Health Journey
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Start Tracking Your Health Today
Join thousands of people who use VitaClac to understand their nutrition, manage their calories, and make smarter food choices every day. It’s free, it’s instant, and it starts right now.