FITFUMBLE · SIX ESSENTIAL CALCULATORS
FitFumble calculators
Choose the question you have today. Each calculator gives an immediate estimate and explains what it means.
Calorie CalculatorEstimate daily calories for maintenance, fat loss or weight gain from your age, size and activity.→TDEE CalculatorEstimate total daily energy expenditure (TDEE): calories used on an average day including activity.→BMR CalculatorEstimate basal metabolic rate (BMR): energy your body uses at rest.→BMI CalculatorCalculate body mass index (BMI), a height-to-weight screening value.→Macro CalculatorDivide a daily calorie target into protein, carbohydrate and fat grams.→Protein CalculatorEstimate a starting daily protein target for an exercising adult from body weight.→
PICK YOUR STARTING POINT
Which calculator should I use?
Choose by what you want to find out.
- I want to lose, maintain or gain weightCalorie Calculator →
- I want to know roughly how many calories I use each dayTDEE Calculator →
- I want to know my body's basic resting energy needBMR Calculator →
- I want a height-to-weight screening valueBMI Calculator →
- I want to divide calories into protein, carbs and fatMacro Calculator →
- I mainly want a daily protein starting targetProtein Calculator →
Do I need to use every calculator?
No. Choose the one that answers your question. The Calorie Calculator already accounts for resting energy, activity and your weight goal. You do not need to run BMR or TDEE first.
Already have a daily calorie target? Use Macros to split it into protein, carbs and fat. Protein and BMI answer separate questions and can be used on their own.
Results are estimates for adults. Read our methods and limits.