Carb Target Calculator
Daily carbohydrate target from calories and macros.
Enter your values
Enter the daily calories in kcal.
Enter the protein in g.
Enter the fat in g.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Carb target
- 233 g
- Carb calories
- 930 kcal
- Carb % of total
- 42.3%
Quick answer
Carb grams are whatever calories remain after protein and fat are accounted for, divided by 4.
carbs (g) = (calories - protein x4 - fat x9) / 4
At a glance
| What it does | Daily carbohydrate target from calories and macros. |
|---|---|
| Category | Health |
| Inputs needed | Daily calories, Protein, Fat |
| Main output | Carb target |
| Formula | carbs (g) = (calories - protein x4 - fat x9) / 4 |
| Cost | Free — no sign-up, no download |
How to use the Carb Target Calculator
- 1Set your daily calorie target and your protein and fat goals first.
- 2Carbs fill the remaining calorie budget.
- 3If the result is negative, your protein and fat targets exceed your calorie goal — reduce one of them.
Inputs explained
- Daily calories(kcal)
- Enter the daily calories in kcal.
- Protein(g)
- Enter the protein in g.
- Fat(g)
- Enter the fat in g.
Worked example
Using the values the calculator loads with:
Inputs
- Daily calories2200 kcal
- Protein160 g
- Fat70 g
Results
- Carb target233 g
- Carb calories930 kcal
- Carb % of total42.3%
Frequently asked questions
Why calculate carbs last?
Protein and fat have more fixed, functional minimums; carbs are the flexible remainder.
What if I want low carb?
Set fat higher and protein at target, then let carbs fall accordingly.
What do I need to enter into the Carb Target Calculator?
Just 3 values: daily calories, protein, fat. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Carb Target Calculator work out the answer?
Carb grams are whatever calories remain after protein and fat are accounted for, divided by 4. It applies the formula carbs (g) = (calories - protein x4 - fat x9) / 4 and shows the working so you can check each step by hand.
Is the Carb Target Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.