Question 1

How accurate is the BMI calculator?

Accepted Answer

BMI is a useful screening tool but doesn't distinguish between muscle and fat mass. Use it as a starting point.

Question 2

What's the difference between BMR and TDEE?

Accepted Answer

BMR is calories at rest. TDEE includes activity. Eat at TDEE to maintain, below to lose, above to gain.

Question 3

How much protein do I need?

Accepted Answer

Active individuals: 0.7-1g per pound of body weight. Our macro calculator personalizes this for your goal.

Question 4

Is the 8 glasses of water rule accurate?

Accepted Answer

It's a rough guideline. Our calculator provides a personalized recommendation based on weight and activity.

Question 5

How are heart rate zones calculated?

Accepted Answer

Using the formula 220 minus your age for max heart rate, then percentage ranges for each zone.

Know your numbers

BMI Calculator