Weight Loss Calculator

Compares current and target weight, with an optional date-based timeline. Weekly averages are arithmetic only — not calorie or metabolism advice. Very fast paces trigger educational safety warnings. Large goals (over ~20% body weight) should be discussed with a clinician.

DoseFirst BMI & Weight tools provide general educational estimates only. They are not medical advice, diagnosis, or treatment. Talk with a qualified clinician before making health decisions.

This calculator compares a starting weight with a target weight and summarizes the difference. If you add a target date, it estimates a linear weekly pace. That pace is simple division — not a model of calories, hormones, or adherence.