Macro Tracking for Beginners: Everything You Need to Know
Quick answer
New to tracking macros? Learn what macros are, how to calculate yours, and how to hit your targets every day. Use this guide to shortlist the best fit, then compare price, goal fit, and whether you will actually use it consistently.
- Best for fast decisions
- Updated as PT Tracker content evolves
What Are Macros?
Macros — short for macronutrients — are the three main categories of nutrients your body needs in large amounts:
- Protein (4 calories per gram) — builds and repairs muscle tissue
- Carbohydrates (4 calories per gram) — your body’s primary energy source
- Fat (9 calories per gram) — essential for hormones, brain function, and vitamin absorption
Why Track Macros Instead of Just Calories?
Calories tell you how much you’re eating. Macros tell you what you’re eating. Two meals can have the same calories but completely different effects on your body:
- 500 calories of chicken breast and rice = high protein, moderate carbs, low fat
- 500 calories of chocolate = low protein, high carbs, high fat
If your goal is to build muscle, lose fat, or improve performance, the macro split matters.
How to Calculate Your Macros
Step 1: Find Your TDEE
Use our TDEE Calculator to find your maintenance calories.
Step 2: Set Your Goal
- Fat loss: TDEE minus 300–500 calories
- Maintenance: Eat at TDEE
- Muscle gain: TDEE plus 200–300 calories
Step 3: Set Your Protein
Aim for 1.6–2.2g per kg of bodyweight. This is the most important macro for body composition.
Step 4: Set Your Fat
Aim for 0.7–1.0g per kg of bodyweight. Don’t go below this — fat is essential for hormone production.
Step 5: Fill the Rest with Carbs
Whatever calories remain after protein and fat go to carbohydrates. Carbs fuel your training and recovery.
Example
For an 80kg person eating 2,400 calories for maintenance:
| Macro | Target | Calories |
|---|---|---|
| Protein | 160g (2g/kg) | 640 |
| Fat | 70g (0.9g/kg) | 630 |
| Carbs | 283g (remainder) | 1,130 |
Tips for Consistent Tracking
- Log as you go — don’t try to remember everything at the end of the day
- Use the barcode scanner — PT Tracker can scan any food label instantly
- Weigh your food at first — eyeballing portions is notoriously inaccurate
- Don’t aim for perfection — within 5g of each target is close enough
- Save frequent meals — build a library of your regular meals for one-tap logging
Start tracking with PT Tracker — our nutrition features are completely free.
Shop smarter
Relevant product picks
Products that match this guide. Replace these links with tracked affiliate URLs once your partner accounts are approved.
Grenade Carb Killa Protein Bars
People who want an easy high-protein snack for work, travel, or a calorie-controlled diet.
Merchant
Amazon UK
Around £18-£25 / box
Price checked 5 Jul 2026
Best budget wheyMyprotein Impact Whey Protein
Affordable everyday whey protein for lifters who want simple macro support.
Merchant
Myprotein
From £20 / 1kg
Price checked 5 Jul 2026
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