AASCEND
METHOD

KNOW YOUR NUMBERS

BMR & calorie calculator.
Know your starting point.

Estimate resting energy needs, maintenance calories, BMI, and a daily macro starting point.

Your measurements

Mifflin–St Jeor uses a sex-based constant. Its accuracy varies by individual and body composition. Activity multipliers are broad estimates.

YOUR ESTIMATES

Clarity before
the next step.

Enter your measurements to see the numbers and how they are calculated.

See the calculation and limits

BMR = 10 × weight in kg + 6.25 × height in cm − 5 × age + 5 (male constant) or −161 (female constant). Daily maintenance = BMR × activity factor. Fat loss starts at 10% below maintenance; muscle gain at 8% above. BMI = weight in kg ÷ height in metres squared. BMI does not distinguish muscle from body fat.

This tool is for generally healthy adults aged 18–80. It is not suitable for pregnancy, breastfeeding, or clinical nutrition needs. It does not estimate body fat or diagnose health conditions.