Calorie calculator
Enter your age, height, weight and workouts to see how many calories a day keep your weight, and how many fit your goal. It is the same math the Canoz app uses for your plan.
How the number is calculated
Resting energy comes from the Mifflin-St Jeor equation: 10 × your weight in kg, plus 6.25 × your height in cm, minus 5 × your age, then plus 5 for men or minus 161 for women. If you prefer not to say, it uses the midpoint between the two.
That is multiplied by an activity factor: 1.375 for 0 to 2 workouts a week, 1.55 for 3 to 5 and 1.725 for 6 or more. The result is what keeps your weight steady.
Losing or gaining at your pace
A kilogram of body weight holds about 7,700 kcal. The calculator spreads the energy of your weekly pace over seven days and subtracts it to lose weight or adds it to gain. A slower pace is easier to keep up.
Protein, carbs and fats
Your daily calories are split into protein, carbs and fats at 4, 4 and 9 kcal per gram, the same split the Canoz plan uses. If you train a lot, the protein calculator shows the range studies suggest.
Limits and safety
The calculator never suggests less than 1,200 kcal a day, or 1,500 kcal for men. It gives an estimate, not medical advice. Talk to a doctor or dietitian before a big change to your diet, especially if you are pregnant or have a medical condition.
Hitting the number every day
A target only helps when you know what you eat. With Canoz you take a photo of your meal and it estimates the calories and macros in seconds, so the day’s total stays in view.
Questions and answers
How many calories should I eat to lose weight?
It depends on your size, age and activity. The calculator takes what keeps your weight and subtracts the energy of your weekly pace, and it never goes under 1,200 kcal a day, or 1,500 kcal for men.
What does “to keep your weight” mean?
It is your total daily energy: resting energy times your activity factor. Eating about that much keeps your weight steady.
How accurate is the result?
The equation estimates an average person with your numbers, and your real need can differ. Weigh yourself for a few weeks and adjust the target if your weight moves differently than planned.
Is what I enter saved anywhere?
No. The calculator runs in your browser and sends nothing anywhere.