A free, data-driven calculator for GLP-1 medications
GLP1Calc is a free online tool that helps people understand what to expect from GLP-1 weight loss medications including Ozempic, Wegovy, Mounjaro, and Zepbound. It provides two calculators: a weight loss predictor based on real clinical trial data, and a dosing schedule guide showing standard dose escalation timelines.
Our weight loss estimates are based on published clinical trial results — specifically the STEP trials (semaglutide) and SURMOUNT trials (tirzepatide). These are the same studies used by health authorities to approve these medications.
Dosing schedules reflect the standard approved escalation protocols for each medication. Individual prescriptions may vary — always follow your doctor's guidance.
GLP1Calc is for informational purposes only. It does not constitute medical advice and is not a substitute for professional healthcare guidance. All GLP-1 medications require a prescription from a licensed healthcare provider. Always consult your doctor before starting, changing, or stopping any medication.
Questions or found an error? Email us at callanjotta@gmail.com