Realistic Weight Loss Timeline Calculator
Enter your current weight, goal and deadline. The calculator uses commonly recommended weekly rates to give a realistic range of weeks.
How the calculator works
- Weight loss uses 0.5–1% of current bodyweight per week.
- Weight gain uses 0.25–0.5% per week to favour muscle over fat.
- Your deadline is compared with the fast and slow ends of that range.
Frequently asked questions
How fast is it safe to lose weight?
Many health bodies suggest about 0.5–1 kg (1–2 lb) per week for most adults, or roughly 0.5–1% of bodyweight.
Why does weight loss slow down?
As you get lighter you burn less energy, and water weight that drops early stops falling. Plateaus are normal.
Is this medical advice?
No. Speak to a doctor or registered dietitian before major changes, especially with a health condition.
Read the research
More calculators
Delusion Calculator
How many people actually meet your dating standards? Get your pool size and delusion score.
Delusion Score Calculator
Compare your confidence with your evidence for any goal.
Situationship Reality Check Calculator
Turn their texting, plans and effort into an interest score.
When Will I Be a Millionaire? Calculator
Find the age you really hit a million, and what it takes to get there sooner.