Carbohydrate Calculator
Find your daily carbohydrate target in grams.
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Carbohydrates are your body's preferred source of energy, and they fuel everything from your brain to your hardest training sessions. Despite their reputation in some diet circles, the right amount and type of carbs supports both performance and health.
What carbs do
When you eat carbohydrates, your body breaks them down into glucose, which powers your muscles and brain, and stores the extra as glycogen for later. During intense exercise, that glycogen is your main fuel, which is why very low carb diets can leave hard training feeling flat.
How many carbs you need
Carbohydrates typically make up 40 to 60 percent of daily calories. Endurance athletes and very active people sit at the higher end, while less active people or those who simply prefer it can go lower. This tool converts your chosen percentage of calories into grams per day.
Quality over fear
The type of carb matters more than the total for your health. Most of yours should come from whole grains, fruit, vegetables, and legumes, which bring fiber, vitamins, and steady energy. Refined grains and added sugar are best kept as a small part of the day. Fiber in particular helps control appetite and supports gut health.
Let Max plan it
SmaartCoach builds meals that fit your carb target alongside your protein and fat, leaning on quality sources, so the whole plate balances without any math on your end.
Frequently asked questions
How many carbs should I eat a day?
Carbs usually make up 40 to 60 percent of calories. Active people and endurance athletes sit at the higher end, while some prefer fewer carbs. This tool converts your choice into grams.
Are carbs bad for you?
No. Carbs are your body's main fuel, especially for training. Quality matters more than cutting them: favor whole grains, fruit, and vegetables over sugar and refined foods.
Should I eat low carb to lose weight?
Fat loss comes from a calorie deficit, not from cutting carbs specifically. Low carb works for some people because it helps them eat less overall, but it is not required.
When should I eat carbs?
Placing more of your carbs around workouts can improve energy and recovery, though total daily intake matters most.
Sources
Reviewed against these authoritative references. Last updated August 2026.
- MedlinePlus, U.S. National Library of Medicine. Carbohydrates
- U.S. Department of Health and Human Services. Physical Activity Guidelines for Americans
- MedlinePlus, U.S. National Library of Medicine. Metabolism
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