Start with the calculators
The same published formulas the app uses — free, instant, in your browser. Pick a tool, type a number, get an answer. Nothing you type here is stored or sent anywhere.
A1C ↔ eAG converter
The lab reports A1C as a percentage; glucose meters speak in mg/dL. This converter translates between the two using the NGSP/ADAG formula clinicians use — enter either number and see the other, plus where it sits on the reference ranges published by the American Diabetes Association. Education, not a diagnosis.
Prediabetes Risk Test
Seven quick questions adapted from the CDC Prediabetes Risk Test — age, sex, family history, blood pressure, activity and body measurements. You get a score out of 10 with plain-language context on what it suggests. A score, not a diagnosis — something to bring to your doctor, not a verdict.
Your 5–7% Window
In the Diabetes Prevention Program study, people who lost 5–7% of body weight and stayed active reduced their risk of developing type 2 diabetes. Enter your weight and height and see that range sized to your numbers — a first milestone at 5%, a full goal at 7%, and a steady weekly pace. Population-level research; your clinician leads your plan.
Retest date planner
An A1C reflects roughly the past three months, so a ~90-day retest cycle is the common cadence — long enough for the number to move, short enough to stay connected to your habits. Pick your last lab date and a cycle length (60–180 days) and get your retest date, plus when to book the appointment.
All four run entirely in your browser — no account, no storage, no network calls with your numbers. Formulas and thresholds are cited on the Sources page.
Dulceo turns these numbers into a 90-day rhythm — the Ninety Loop.
Your zone on the ADA bands, weight and plate logging, a countdown to your retest, and a one-page PDF for the follow-up — all on your phone, nothing in the cloud.