Tools

BMI Change Timeline Simulator

Simulate your BMI over time at a chosen weekly weight-loss pace and see when you cross from obese to overweight to normal ranges, with a timeline chart.

Time to Reach Your Target Body Fat Percentage

Reverse body-fat calculator: enter current weight, current and target body fat, and fat-loss pace to see weeks needed, fat to lose, and target weight, with a timeline chart.

Calorie Deficit Needed to Reach Your Goal Weight

Reverse weight-loss calculator: enter your current weight, goal weight, and timeline to see the exact daily calorie deficit and suggested intake, with a weight-loss timeline chart.

Diet vs Exercise vs Both for Weight Loss

Compare losing weight by diet alone, exercise alone, or combining both. See weeks to goal for each method, with a comparison chart.

Fast vs Slow Weight Loss Comparison

Compare rapid (2 lb/week) versus gradual (0.5 lb/week) weight loss by time needed and daily calorie deficit, with a comparison chart.

Weight Loss Progress Simulator

Simulate your weight month by month from a daily calorie deficit, with optional metabolic adaptation, and see the full progress curve.