Trying to Lose Weight? Start with a Smarter Calculator
No more guesswork. Our Calorie Deficit Calculator uses science-backed formulas to give you the exact daily intake you need to reach your weight loss goals—fast and free.
Start Calculating — It’s Fast, Free & No Login Needed!
Calorie Calculator
Find your ideal daily calorie intake based on your age, gender, weight, and activity level. Fast, science-based results.
Macro Calculator
Calculate your daily protein, fat, and carb needs whether you're bulking, cutting, or maintaining.
TDEE Calculator
Estimate your Total Daily Energy Expenditure based on your lifestyle and activity. Great for maintenance planning.
BMI Calculator
Check your Body Mass Index to see if you're underweight, normal, overweight, or obese. No BS, just numbers.
Calorie Deficit Calculator
Find out exactly how many calories you need to lose weight based on your body and goals. Fast, free, and no signup needed.
Ideal Weight Calculator
Find your healthy weight range based on height and gender using medical standards.
BMR Calculator
Calculate your Basal Metabolic Rate to see how many calories your body burns at rest. Great for setting diet baselines.
Body Fat Calculator
Estimate your body fat percentage using simple inputs. Helpful for fitness tracking and lean mass goals.
Water Intake Calculator
Know exactly how much water your body needs per day based on weight and activity. Stay hydrated the smart way.
Intermittent Fasting Planner
Plan your fasting and eating windows whether you’re doing 16:8, 14:10, or something more advanced.
Lean Body Mass Calculator
Estimate your lean body mass to optimize fat loss or muscle gain goals. Based on proven formulas.
Pregnancy Weight Tracker
Stay on track with healthy weight gain during pregnancy based on official BMI guidelines.
PCOS Calorie Adjuster
Tailors your calorie intake to better fit insulin resistance and metabolic shifts common in PCOS.
Bulking Calculator
Add a healthy calorie surplus for optimal muscle growth.
Keto Macro Calculator
Get your ideal fat, protein, and carb macros for a ketogenic diet. Designed for optimal results, not just generic ratios.
How CalorieGenius Works
Pick a Calculator
Choose one that fits your goal—whether it’s keto macros, pregnancy tracking, or fasting windows.
Enter Your Info
No signups. Just input your basic stats and get instant, science-backed results.
Get Personalized Results
See your calorie target, macros, or time windows—plus optional tips and trusted product links.
🍽️ Discover Calories in Real Foods
Not just numbers—know what’s really on your plate. Search 300+ foods with full nutrition info, goal suitability, and macro breakdowns.
Explore the Food ListPowering Progress for Everyday Champions
"Finally, a calorie calculator that actually understands my keto goals! No fluff, just exactly what I needed."
"Used the intermittent fasting planner from CalorieGenius—super intuitive and legit helped me lose 4kg in 3 weeks."
"The PCOS calorie tool was a game-changer. I’ve tried everything before—this one finally made sense."
Frequently Asked Questions
What is CalorieGenius?
CalorieGenius is a suite of free nutrition calculators built for specific diets and health conditions like keto, PCOS, intermittent fasting, and pregnancy. No sign-ups, just fast results.
How is this different from other calorie calculators?
Most calculators give generic results. CalorieGenius offers hyper-targeted tools that consider your diet goals, medical conditions, and lifestyle for more accurate recommendations.
Do I need to create an account to use it?
No account required. All calculators are free to use without registration—you get results instantly.
Is CalorieGenius suitable for medical use?
No. While we design our tools based on nutritional guidelines, CalorieGenius is for educational and planning purposes only. Always consult your doctor or dietitian for medical advice.
Can I use CalorieGenius for keto tracking?
Yes! Our Keto Macro Calculator is designed specifically for low-carb, high-fat diets. Just enter your info and get your ideal carb, protein, and fat targets.
Does it work for PCOS or hormone-related goals?
Yes. We built a dedicated PCOS Calorie Adjuster that accounts for common metabolic resistance, with adjusted calorie estimates to support your goals.
What if I’m doing intermittent fasting?
We have an Intermittent Fasting Planner that helps you figure out your ideal fasting and eating windows, based on your goal (weight loss or maintenance).
Can I calculate healthy weight gain during pregnancy?
Absolutely. Our Pregnancy Weight Tracker follows NIH guidelines and gives trimester-based recommendations based on your pre-pregnancy BMI.
Are the tools mobile-friendly?
Yes, all our calculators are optimized for mobile, tablet, and desktop so you can access them anytime, anywhere.
How does CalorieGenius make money?
We monetize through display ads, affiliate links to trusted health products, and optional premium downloads. This helps us keep the calculators free for everyone.
Is my data stored or tracked?
We don’t store personal data. Inputs are processed locally or temporarily for calculation only. We don’t require login or collect identifiable information.
How often do you release new calculators?
We aim to release a new niche calculator every 1–2 weeks based on user demand. Upcoming tools include vegan macros, diabetic carb guides, and BMR for seniors.
