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Macro Calculator

Calculate your ideal daily protein, carbohydrate, and fat intake based on your body weight, goal, and activity level. Built on evidence-based sports nutrition guidelines.

Your Details
Unit System
Gender
Age30 years
yr
1580
Body Weight70 kg
kg
30200
Height175 cm
cm
100250
Activity Level
Goal
Your Result

Fill in the details and
your result appears here.

Daily Calories
BMR (base metabolic rate)
TDEE (total daily energy)
Target Calories
Protein Target
Carbohydrate Target
Fat Target
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Did You Know?
Protein first, everything else follows
Hit your protein target every day — this matters more than the exact carb/fat split. Once protein is consistent, you can adjust carbs and fats based on energy, performance, and personal preference without losing progress.

How to use this calculator

1

Enter your stats

Age, weight, and height. Use current weight, not goal weight.

2

Set activity level honestly

Most people overestimate activity. If you have a desk job and gym 3x/week, choose "Lightly Active".

3

Choose your goal

Fat loss deficit of 300–500 kcal per day is sustainable. Aggressive deficits increase muscle loss risk.

The formula explained

BMR (Mifflin-St Jeor): Male = 10W + 6.25H − 5A + 5
TDEE = BMR × Activity Multiplier
Protein: 1.8–2.2g per kg bodyweight
Fat: 25% of total calories ÷ 9
Carbs: Remaining calories ÷ 4

Protein is prioritised because it is most important for muscle retention and satiety. Fat is set at 25% for hormonal health. Carbohydrates fill the remaining calorie budget.

Frequently Asked Questions

What are macros?

Macronutrients — protein, carbohydrates, and fat — are the three main categories of nutrients that provide calories. Protein and carbs provide 4 kcal/g, fat provides 9 kcal/g. Tracking macros is more precise than just tracking calories.

How much protein do I need?

For active individuals: 1.6–2.2g per kg bodyweight. Higher end for those in a calorie deficit or doing heavy strength training. Protein preserves muscle mass during fat loss.

Should I count calories or macros?

Macros are more informative — two diets can have the same calories but vastly different results depending on protein content. However, calorie tracking alone works well for beginners before adding macro complexity.

What is the best macro split?

There is no single best split. High protein is consistently supported by research. Beyond that, carb vs fat ratio depends on personal preference, sport, and adherence. The best split is the one you can sustain.

What is the ideal macro ratio for weight loss?

A common weight-loss macro split is 40% protein, 30% carbohydrates, 30% fat. High protein preserves muscle during a calorie deficit. Adjust based on preference — some people do better on lower carb or lower fat approaches.

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