What this tool helps you do
This calculator estimates how much you have spent so far, how much each pound or kilogram of weight loss has cost, and whether your progress is ahead of, on, or behind a trial-average benchmark.
It is primarily a storytelling and planning tool, not a financial or medical recommendation engine.
How it works
Method
Estimate time on therapy
The calculator computes months on therapy from your start date, then multiplies that by your average monthly spend.
If you are more than 15 days into an additional month, it adds a half-month step.
Method
Compare your results with trial-average curves
Expected percent loss is interpolated from embedded semaglutide, oral semaglutide, liraglutide, and tirzepatide curves.
Your actual percent loss is then compared with the expected curve to label progress as ahead, on track, or behind.
Formula or method
Months on therapy = years × 12 + month difference + optional 0.5 month if day difference > 15
Total spend = Monthly spend × Months on therapy
Cost per pound = Total spend ÷ Pounds lost
Cost per kilogram = Total spend ÷ Kilograms lost
Example
From January 14 to April 14 with a $300 monthly spend, total spend is about $900.
If weight falls from 200 lb to 185 lb over that time, cost per pound is about $60.
Assumptions and limitations
Trial-average expected loss is not a guarantee and should not be used to judge personal success or failure.
The calculator does not include indirect costs such as labs, appointments, or food changes.
FAQ
It provides context for planning, not a clinical verdict. Real-world pace varies widely.
Yes. It converts internally so you can see both cost per pound and cost per kilogram.
No. It is a cost-and-progress planning tool with educational curve comparisons.
Sources
Important notes
These tools provide educational estimates and do not replace individualized medical advice.
Population-average curves and label rules do not capture every person, formulation, or clinical scenario.
Learn more about how Glone handles content quality in the editorial policy.
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