Gravity Macro Calculator

Calculate your BMR, TDEE, target calories, and optimal macronutrient split (Protein, Fats, Carbs) based on your weight goals and training volume.

Metabolic Parameters
Macronutrient Summary
N/A
Your daily caloric and macro splits will appear here.
Share this Tool

Spread the word to help others work faster!

Related Tools

Age Calculator

Calculate age from birth date to current date. Instant browser access with no account setup.

BMI Calculator

Calculate Body Mass Index based on height and weight. Instant browser access with no account setup.

Body Shape Calculator

Calculate your body shape type using bust, waist, high hip, and hip measurements. Instant results with styling tips.

Bra Size to Bikini Size Converter

Convert standard bra sizes to alphabetical swimwear sizes. Matches US, UK, EU, and AU size standards.

Breast Weight Calculator

Estimate breast weight and volume from bra sizes. View interactive comparisons and health posture notes.

Bust Size Calculator

Calculate your bra band, cup size, and sister sizes using your underbust and bust measurements. Supports multiple unit configurations.

Color Picker

Select and convert color formats with ease. Instant browser access with no account setup.

Discount Calculator

Calculate final price after discount and amount saved. Instant browser access with no account setup.
Step-by-Step Guide

Calculate Your Macros in 4 Easy Steps

Determine your daily metabolic baseline, target calories, and optimal protein/fat/carb splits.

1
Provide Personal Statistics

Enter your age, gender, height, and current weight inside the input form. Units can be toggled between metric and imperial.

BMR Stats Body Weight
2
Choose Activity Multiplier

Select how active you are during a typical week (e.g. sedentary desk job vs. heavy physical training) to compute TDEE.

Activity Multiplier TDEE Baseline
3
Specify Fitness Goal

Choose Fat Loss (deficit), Maintenance, or Muscle Gain (surplus). This applies calorie adjustments to your baseline.

Fat Loss Deficit Muscle Gain Surplus
4
Adjust Macros Preset

Choose a macronutrient ratio preset (e.g. Balanced, High-Protein, Keto) to convert target calories into exact daily grams of Protein, Fat, and Carbs.

Macros Preset Grams Targets
Client-side processing
Auto-deleted after session
Zero server uploads
Sports Nutrition

Metabolic macro splits engine

Formulate an athletic dietary framework using established thermodynamic metabolic math. Perfect for resistance training athletes.

Mifflin-St Jeor Baseline

Utilizes highly verified clinical BMR calculators to ensure initial base accuracy.

Caloric Adjustment Sliders

Applies target adjustments (e.g. 20% deficit for cuts, 10% surplus for bulks).

Preset Dietary Splits

Features Balanced (Zone), High-Carb (Athletic), Low-Carb, and Ketogenic preset options.

Secure Local Storage

Logs calculations inside your browser LocalStorage to easily check your progression.

FAQ

Common Questions

What do BMR and TDEE stand for?
BMR (Basal Metabolic Rate) represents the bare minimum number of calories your body burns simply to survive at complete rest (keeping organs functioning, breathing, regulating temperature). TDEE (Total Daily Energy Expenditure) is the total calories you burn in a 24-hour cycle once your physical activity multiplier is factored in.
Why does this calculator focus on protein?
For athletes working against gravity (lifting weights, gymnastics), protein is critical. Consuming adequate protein (roughly 0.8 to 1.2 grams per pound of weight) during a calorie deficit ensures your body preserves its skeletal muscle tissue and burns fat instead.
What is the calorie-to-gram conversion rule for macros?
To translate target calories to grams: * **Protein:** 4 calories per gram. * **Carbohydrates:** 4 calories per gram. * **Fat:** 9 calories per gram. * *Example:* 100g of protein provides 400 kcal, while 50g of fat provides 450 kcal.
Should I follow a low-carb or high-carb split?
It depends on your training style. High-carb/Low-fat is excellent for explosive, high-volume workouts (glycogen replenishment). Low-carb/High-fat (or Keto) is popular for steady-state endurance training and insulin sensitivity management. Overall calorie totals drive fat loss, but macro ratios dictate performance.
How often should I recalculate my macros?
You should adjust your macro calculations for every 5 to 10 lbs (2.5 to 5 kg) of body weight change. As you lose mass, your BMR drops, requiring a downward calorie adjustment to sustain the same fat-loss progression rate. Recalculate if your training volume changes significantly.