Carbohydrate Intake Calculator: How Many Carbs Do You Need Daily?
Low-carb, high-carb, keto, balanced — every approach gives a different answer. The right amount of carbohydrates depends entirely on your activity level, metabolic health, and personal goals. This calculator finds your personalised daily carbohydrate target.
What Do Carbohydrates Do?
Carbohydrates are the body's preferred energy source — especially for the brain and during high-intensity exercise. They are stored as glycogen in muscles and liver, providing fast-access fuel. Complex carbs from whole foods also provide dietary fibre, supporting gut health, blood sugar regulation, and cardiovascular health.
The Formula
Carbs (g) = Total Daily Calories × Carb% ÷ 4 kcal/g
Carb Targets by Diet Style
| Diet Style | Carb % | Daily Carbs (2000 kcal) |
|---|
| Ketogenic | 10% | ~50g |
| Low Carb | 20% | ~100g |
| Moderate Carb | 35% | ~175g |
| Balanced | 45% | ~225g |
| High Carb (Endurance) | 55% | ~275g |
Worked Example
2200 kcal/day, balanced approach (45%):
Carbs = 2200 × 0.45 ÷ 4 = 247g carbohydrates/day
Find your target with our Carbohydrate Intake Calculator.
How Activity Changes Carb Needs
- Sedentary: 30–45% carbs — enough to fuel basic functions and brain activity.
- Recreational exercisers: 40–50% — supports glycogen replenishment after moderate training.
- Endurance athletes: 55–65% — high-volume training rapidly depletes glycogen, requiring abundant replenishment.
Practical Tips
Choose complex, high-fibre carbs. Oats, brown rice, legumes, sweet potato, and whole fruits support sustained energy without blood sugar spikes.
Time carbs around exercise. Eating carbs 1–2 hours before and within 30 minutes after training optimises performance and recovery.
Hit your fibre target. Aim for 25–35g of fibre per day — most people consume significantly less.
Final Thoughts
Carbohydrates are not the enemy — the wrong types in the wrong amounts are. Knowing your personal carbohydrate target helps you fuel appropriately for your lifestyle and goals.
Find your daily carbohydrate target with our free Carbohydrate Intake Calculator.