How to Count Calories: An Easy Beginner’s Guide
A practical way to estimate your target, log portions, and improve accuracy without turning every meal into a test.
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Free · Private account · Web + iPhone
Understand your nutrition. See your progress.
Log meals in seconds, estimate calories and macros with AI, and follow weight, measurements, and personal goals from one clear dashboard.
Clear estimates, responsible use Kcalories helps you understand your habits. AI and calorie estimates are a starting point—not a diagnosis or medical recommendation.What Kcalories does
📷 Analyze photos with AI
Choose a meal photo and get an editable calorie and macro estimate. You always review before saving.
🔥 Calorie tracking
Daily summary, donut, and per-meal averages. Set your goal with one tap.
🧬 Macronutrients
See carbohydrates, protein, and fat alongside your daily calorie goal.
⚖️ Daily weight
Log weight, view trend line, and sync with BMI/BMR profile.
🎯 Smart goals
Mifflin–St Jeor + activity to compute maintenance and deficit plan.
🔒 Private account experience
Your personal logs are not sold to advertisers. The native app and private dashboard contain no ads.
How it works
Set up your profile
Sex, age, height, and goal. We compute maintenance and plan.
Sex, age, height, and goal. We compute maintenance and plan.
Add your meals
Manual or photo + AI. Edit calories and macros on the fly.
Manual or photo + AI. Edit calories and macros on the fly.
Check your progress
Daily donut, macros, and weight line to see the trend.
Daily donut, macros, and weight line to see the trend.
Adjust & maintain
Use estimates as a guide, review your trend, and adjust with professional help when needed.
Use estimates as a guide, review your trend, and adjust with professional help when needed.
App screens
Weight trend (8 weeks)
Daily weight with 7-day moving average (dashed line).
Weekly calorie balance
Bars show weekly deficit or surplus vs maintenance.
A calorie tracker built for clarity
Kcalories brings meals, calories, macronutrients, weight, and measurements into one bilingual dashboard. Add food manually or start with an AI estimate from text or a photo.
Daily calorie estimates use the Mifflin–St Jeor equation and the activity level you enter. They are planning references, not clinical prescriptions.
Weight trends and history help you focus on patterns over time instead of reacting to a single measurement.
Practical guides · EN + ES
See all 10 articles →
Learn to count calories and eat better
Low-Calorie Meal Prep: An Easy 5-Day Plan
A flexible five-day template with protein, vegetables, and carbohydrates that you can adapt to your target.
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How to Lose Weight Without Starving: 9 Strategies
Nine practical decisions that reduce calories without making you think about the next meal all day.
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Created in El Salvador
Created by Dr. Hugo Daniel Parrales López
Physician, university educator, researcher, and developer with a long-standing interest in making health information easier to understand through technology.
Hugo is the founder of Cerebro Médico and an author of peer-reviewed medical publications. He created Kcalories to turn daily nutrition and progress tracking into a clearer, more useful experience.
Doctor of Medicine
University educator
Research + health technology
Clinical background informs the product, but Kcalories does not replace personal medical care.
Frequently asked questions
Is Kcalories free?
Yes. The current web and native app experience is free and has no subscriptions or in-app purchases.
Do I need to install anything?
No. You can use the web app in a modern browser. A native iPhone and iPad app connects to the same account.
How accurate is photo AI?
It is an estimate and may misidentify food or portions. Always review and edit calories and macros before saving.
Do you keep my meal photo?
Kcalories sends the selected image to its artificial intelligence processing provider for the requested analysis and does not save it as a permanent media file. The nutrition result is saved only if you choose to do so.
Are my data sold to advertisers?
No. Personal account and wellness data are not sold or used to target ads. Advertising may appear only on public pages and the blog.
How are calorie goals calculated?
We estimate BMR with Mifflin–St Jeor and apply the activity level you enter. The result is informational and not a prescription.
What can my linked buddy see?
Only your display name and a daily calories-versus-goal comparison. They cannot see your email, weight, measurements, GLP-1 notes, photos, or detailed meals.
Can I delete my account?
Yes. In the app, open Profile, Account and privacy, then Delete account. The deletion is permanent.
Does Kcalories prescribe GLP-1 medication?
No. The GLP-1 area is a personal log and never recommends medication, doses, intervals, or treatment changes.
Is Kcalories medical advice?
No. It is an educational wellness tool. Personalized decisions should be discussed with a qualified healthcare professional.
Is Kcalories available in Spanish?
Yes. The web and native app support Spanish and English.
Start today. Your future self will love it.
Set your goal, log your first meal, and you’re good to go!