13 science-backed clinical calculators to assess your metabolic health instantly.
All calculators use validated clinical formulas. Results are for informational purposes only.
Blood Glucose Converter
Convert blood sugar between mg/dL and mmol/L units instantly.
Formula: 1 mmol/L = 18 mg/dL. Multiply mmol/L by 18 to get mg/dL, or divide mg/dL by 18 to get mmol/L. This conversion is standardized by the International Federation of Clinical Chemistry (IFCC).
Blood Sugar Checker
Check if your blood glucose is low, normal, or high based on your condition and meal status.
Body Mass Index (BMI) is a screening tool to identify potential weight-related health risks.
Asian-Indian Criteria: Health risks start at a lower BMI for Indians. Indian consensus classifies BMI 23-24.9 as overweight and >=25 as obese, due to higher risk of Type 2 Diabetes and CVD at lower body weights.
*Uses Asian-Indian specific BMI cutoffs.
BMR Calculator
Estimate your Basal Metabolic Rate - the calories your body burns at rest - using the Mifflin-St Jeor equation.
Science: The Mifflin-St Jeor equation is the most accurate BMR formula validated by the Academy of Nutrition and Dietetics, with 85% accuracy within +/-10% of measured resting energy expenditure.
Diabetes Risk Score (IDRS)
Indian Diabetes Risk Score - a validated, non-invasive tool by MDRF (Madras Diabetes Research Foundation) to identify high-risk individuals.
Validation: The IDRS has 72.5% sensitivity and 60.1% specificity for detecting undiagnosed Type 2 Diabetes in the Indian population. Score >=60 warrants immediate HbA1c screening.
eAG/A1C Conversion Calculator
Convert between HbA1c (%) and estimated Average Glucose (eAG in mg/dL) using the ADAG study formula.
ADA Standard Formula: eAG (mg/dL) = 28.7 x A1C - 46.7. This linear regression equation was derived from the international A1c-Derived Average Glucose (ADAG) study involving 507 subjects across 10 centers worldwide.
eGFR Calculator (CKD-EPI 2021)
Estimate your Glomerular Filtration Rate - the key measure of kidney function - using the updated CKD-EPI 2021 equation (without race factor).
Update: The CKD-EPI 2021 equation (NEJM 2021) removed the race coefficient, making it more equitable. eGFR <60 for 3+ months indicates chronic kidney disease (CKD Stage 3).
Convert your HbA1c percentage to estimated average blood glucose over the past 2-3 months.
ADA Formula: Average Glucose (mg/dL) = 28.7 x A1C - 46.7. For example, an A1c of 7% corresponds to an average glucose of ~154 mg/dL. Each 1% change in A1c reflects ~29 mg/dL change in average glucose.
Ideal Body Weight & Adjusted Body Weight
Calculate your Ideal Body Weight (IBW) using the Devine formula and Adjusted Body Weight (ABW) for clinical dosing.
Devine Formula (1974): Male IBW = 50 kg + 2.3 kg per inch over 5ft. Female IBW = 45.5 kg + 2.3 kg per inch over 5ft. ABW = IBW + 0.4 x (Actual - IBW), used for drug dosing in obese patients.
Insulin Dose Calculator
Calculate your mealtime (bolus) insulin dose based on carbohydrate intake, blood glucose level, and insulin sensitivity.
Method: Uses carbohydrate counting approach endorsed by ADA. Total bolus = (Carbs / ICR) + (Current BG - Target BG) / ISF, where ISF = 1800/TDI (Rule of 1800).
*Always confirm with your endocrinologist. Individual factors affect dosing.
Insulin-to-Carb Ratio (ICR) Calculator
Determine your personal insulin-to-carbohydrate ratio using the 500 Rule for personalized meal planning.
500 Rule: ICR = 500 / Total Daily Insulin (TDI). For example, if you take 40 units/day, ICR = 500/40 = 12.5, meaning 1 unit covers 12.5g of carbs. Validated for rapid-acting insulins (lispro, aspart, glulisine).
LDL Calculator (Friedewald Formula)
Estimate your LDL cholesterol using total cholesterol, HDL, and triglycerides.
Friedewald Formula (1972): LDL = Total Cholesterol - HDL - (Triglycerides / 5). Valid when triglycerides are <400 mg/dL. For TG >400, direct LDL measurement is recommended.
*Valid only when Triglycerides <400 mg/dL.
Waist to Hip Ratio Calculator
Assess your body fat distribution using the waist-to-hip ratio - a key predictor of cardiovascular and metabolic risk.
WHO Standards: WHR >0.85 (women) or >0.90 (men) indicates central obesity and significantly increased risk of heart disease, Type 2 Diabetes, and metabolic syndrome.
Take the Next Step Toward Better Health
Calculators give you numbers. Get a precise clinical interpretation and personalized reversal plan from Dr. Prashanth G.