Teenagers are still growing, so adult calorie calculators get them wrong. This one uses the equations nutrition scientists built specially for ages 9 to 18, which include the extra energy needed for growth. It gives a healthy amount to eat, not a diet.
Healthy daily calories
0 kcal / day
Growing bodies need enough energy. If you're worried about your weight, please talk to a parent, school nurse or doctor rather than cutting calories on your own.
These ranges come from the US Dietary Guidelines. The lower number is for teens who are not very active, the higher for very active ones.
| Age | Girls | Boys |
|---|---|---|
| 9–13 | 1,400–2,200 | 1,600–2,600 |
| 14–18 | 1,800–2,400 | 2,200–3,200 |
Sources: Dietary Guidelines for Americans 2020–2025; Institute of Medicine estimated energy requirement (EER) equations for ages 9–18, which include 25 kcal a day for growth.
Most 15-year-old girls need about 1,800 to 2,400 calories a day and most boys about 2,200 to 3,200, depending on size and activity. The calculator gives a number for your own body.
Generally no. For most teens, eating regular balanced meals and listening to hunger works better than counting. A calculator like this is useful for a rough idea, especially for athletes.
Teens shouldn't cut calories hard on their own, because it can affect growth, energy and mood. If weight is a concern, a doctor can help plan safe changes, usually focused on activity and food quality.
Growth spurts, bigger muscles and lots of sport all use energy. A very active, fast-growing teenage boy can need more food than most adults.
From 19, bodies have mostly finished growing, so adult equations work better. Adults can use our main calorie calculator.
Parent or coach? The calorie calculator on our home page works for adults aged 18 and over.
Open the calorie calculator