How many carbs should I eat per day?

General dietary guidelines suggest 45–65% of calories from carbs. For a 2,000 calorie diet that's 225–325 g. Low-carb diets typically aim for under 100–150 g, and keto under 50 g.

What is a low-carb diet?

A low-carb diet limits carbohydrates to roughly 20–25% of total calories, reducing reliance on glucose for energy and often promoting fat loss.

How few carbs does keto require?

Keto typically limits carbs to 20–50 g per day (around 5% of calories) to induce and maintain nutritional ketosis.

No. Whole-food carbs like fruits, vegetables, legumes, and whole grains come with fiber, vitamins, and minerals. Refined carbs and added sugars are what most guidelines recommend limiting.

What happens if I eat too few carbs?

Very low carb intake can cause fatigue, headaches, and irritability initially (the 'keto flu'). Long term, some people thrive; others need more carbs for optimal performance and mood.

Health

↵ to calculate

Carb Intake Calculator - Daily Carbohydrate Needs Online

Calculate your recommended daily carbohydrate intake in grams based on your calorie goal and diet type.

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How to use this calculator

👉 Fill in the boxes below and your answer appears instantly — no maths needed, we do it all for you! 🎉

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In plain English — what does this do?

💚 A body helper! It tells you things about your health — like how much food you need, a healthy weight for your height, or when a baby might arrive. Easy to use, no doctor needed!

📌 Direct Answer & Summary

A daily carb intake calculator determines how many grams of carbohydrates you should eat each day based on your total calorie goal and chosen dietary approach. Carbohydrates are the body's primary energy source, but the ideal amount varies widely depending on whether you follow a balanced, low-carb, or ketogenic diet.

Daily Calories (kcal)

Diet Type

What is Carb Intake Calculator - Daily Carbohydrate Needs Online?

How to use it

1️⃣ Enter your total daily calorie target.
2️⃣ Select your diet type: Balanced, Low-Carb, or Keto.
3️⃣ Your recommended carb intake in grams and as a percentage of calories appears instantly.

Formula

Carb calories = Total calories × carb percentage. Grams of carbs = Carb calories ÷ 4 (since carbs contain 4 kcal per gram). Balanced: 50% carbs. Low-carb: 25% carbs. Keto: 5% carbs.

💡 See it in action — a real example

On a 2,000 calorie balanced diet, carb calories = 2000 × 0.50 = 1000 kcal. Grams of carbs = 1000 ÷ 4 = 250 g. On a keto diet, carbs = 2000 × 0.05 = 100 kcal = 25 g.

❓ Common questions

How many carbs should I eat per day?: General dietary guidelines suggest 45–65% of calories from carbs. For a 2,000 calorie diet that's 225–325 g. Low-carb diets typically aim for under 100–150 g, and keto under 50 g.
What is a low-carb diet?: A low-carb diet limits carbohydrates to roughly 20–25% of total calories, reducing reliance on glucose for energy and often promoting fat loss.
How few carbs does keto require?: Keto typically limits carbs to 20–50 g per day (around 5% of calories) to induce and maintain nutritional ketosis.
Are all carbs bad?: No. Whole-food carbs like fruits, vegetables, legumes, and whole grains come with fiber, vitamins, and minerals. Refined carbs and added sugars are what most guidelines recommend limiting.
What happens if I eat too few carbs?: Very low carb intake can cause fatigue, headaches, and irritability initially (the 'keto flu'). Long term, some people thrive; others need more carbs for optimal performance and mood.

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