Weight Loss
Timeline Forecaster
Stop guessing. Get a science-based prediction of exactly when you'll reach your goal weight—and discover how to get there faster.
Weight Loss Timeline Forecaster
Science-based predictions using the Mifflin-St Jeor equation
How is this calculated?
Mifflin-St Jeor Equation (1990):
Men: BMR = 10×weight(kg) + 6.25×height(cm) - 5×age + 5
Women: BMR = 10×weight(kg) + 6.25×height(cm) - 5×age - 161
This equation has been validated as the most accurate predictor of Resting Metabolic Rate in clinical studies.
How It Works
Our calculator uses the same equations used by doctors and nutritionists
Enter Your Details
Input your current weight, goal, age, and activity level using our intuitive sliders.
We Analyze Your Metabolism
Using the Mifflin-St Jeor equation—the gold standard in metabolic science.
See Your Timeline
Get an interactive projection showing two paths: standard vs. accelerated.
Popular Weight Loss Goals
Find your specific goal and get a personalized timeline
The Science Behind It
Our Weight Loss Timeline Forecaster uses the Mifflin-St Jeor Equation, which clinical studies have shown to be the most accurate predictor of Resting Metabolic Rate (RMR).
This equation was developed in 1990 and has been validated repeatedly as superior to older formulas like Harris-Benedict. It's the same calculator used by nutritionists, doctors, and fitness professionals worldwide.
BMR (Men) = 10×weight(kg) + 6.25×height(cm) - 5×age + 5
BMR (Women) = 10×weight(kg) + 6.25×height(cm) - 5×age - 161