Start with your goals
Enter your starting details and choose a weight goal. The planner builds an estimate to help you explore what's possible.
Free · no sign-up
A weight plan that gets more personal with you.
Start with an evidence-based weight forecast. Log your progress to see how the estimate changes with you.
Build your weight plan
For adults 18+. Not for pregnancy, eating-disorder treatment, or use as a replacement for medical supervision.
Built by a registered dietitian and food scientist.Your data stays on your device.
How it works
A plan, a range, and a feedback loop from your own weigh-ins.
See a range, not a promise
Your forecast shows a range of possible weight paths, not one exact number you have to reach.
Make it yours over time
Log weigh-ins as you go. With enough data, the planner fits the forecast to your recorded progress.
Honest about uncertainty. Personal over time.
A range, not a deadline
Weight changes are not perfectly predictable. Your forecast makes room for uncertainty instead of hiding it.
Your progress helps shape the plan
The forecast starts with a population-based estimate. As you log, it can be fitted to your own weight trend.
Your data stays with you
Your plan and logs stay on your device, giving you control over your personal information.
Your plan and logs are stored locally on your device. Clearing browser data may remove them.
Confidence should be earned in public.
We show what a number is based on, where uncertainty remains, and when a tool should give way to individualized care. Reviewed sources, label snapshots and estimates stay labelled, and unknown is never shown as zero.
A scientist, strategist, and builder.
Geremy Kerr, MS, RDN, brings graduate training in dietetics and food science, a business degree and years leading complex projects. He spent much of his life in a larger body and lost more than 100 pounds before becoming a dietitian.
Help shape the first commercial version.
A small four-week cohort will test whether the planner is useful in real life—not merely impressive in a demo.