Calorie and nutrition calculators

Where should you start?

First, calculate your daily calorie needs—this is the starting point for all the other calculations. Then set a calorie deficit or surplus, work out your macronutrients, and check how much protein you need. Your details carry over from one calculator to the next, so you don't have to enter them again.

Convert movement into calories with the calorie burn and steps calculators. Check your body composition using BMI, ideal weight, and body fat calculators. For everyday use, try the water calculator and kitchen measurement converter, which converts tablespoons and cups to grams.

Your data stays with you

Everything is calculated in your browser. We don't send the data you enter to a server, and only remember it in this browser tab while you're visiting. Results are estimates, not a diagnosis. If you have a medical condition, are pregnant, or are breastfeeding, set your goals with a doctor or dietitian.