Diabetes Calculators
Browse our comprehensive collection of diabetes calculators for blood sugar, A1C, insulin dosage, carbohydrate counting, risk assessment, gestational diabetes, complications, and more. Free online tools for patients, educators, and healthcare professionals.
A1C to eAG Converter
Convert Hemoglobin A1C percentage to estimated Average Glucose (eAG) using the ADAG formula.
a1cBlood Sugar Converter (mg/dL to mmol/L)
Convert blood glucose levels between mg/dL and mmol/L with step-by-step conversion factors.
a1cA1C Estimated Average Blood Sugar
Estimate average blood sugar from A1C percentage with detailed interpretation and ranges.
a1cGlucose Management Indicator (GMI)
Calculate GMI from average glucose using the latest clinical formula for CGM users.
a1cBlood Sugar Log & Trend
Track blood sugar readings, calculate average, and view trends over time.
a1cTime in Range (TIR) Calculator
Calculate percentage of time spent in target glucose range from CGM data.
a1cGlycemic Variability Calculator
Calculate glycemic variability metrics (CV, SD) from blood sugar readings.
a1cFasting Blood Sugar Target
Determine appropriate fasting blood sugar targets based on diabetes type and guidelines.
a1cInsulin Correction Factor Calculator
Calculate insulin correction factor (ISF) using the 1800/1500 rule for blood sugar correction.
insulinCarbohydrate-to-Insulin Ratio (CIR)
Calculate your carbohydrate-to-insulin ratio for mealtime insulin dosing.
insulinBasal Insulin Dosage Calculator
Calculate starting basal insulin dose based on weight and diabetes type.
insulinBolus Insulin Calculator
Calculate bolus insulin dose considering food intake, blood sugar, and activity.
insulinInsulin Pump Settings Calculator
Calculate insulin pump settings (basal rates, bolus ratios, correction factors).
insulinTotal Daily Insulin (TDI) Calculator
Calculate total daily insulin requirement from weight and diabetes type.
insulinInsulin Stacking Calculator
Calculate active insulin on board (IOB) to avoid hypoglycemia from stacking.
insulinGlucagon Dosing Calculator
Calculate appropriate glucagon dose for severe hypoglycemia emergencies.
insulinCarbohydrate Counting Calculator
Count carbohydrates in foods using serving size and carb content with portion adjustment.
carbsFood Carb Lookup
Search carbohydrate content of common foods, fruits, vegetables, and prepared meals.
carbsMeal Carb Planner
Plan carb distribution across meals to meet daily carb goals and insulin timing.
carbsGlycemic Index & Load Calculator
Calculate glycemic index and glycemic load of foods for blood sugar management.
carbsFiber Net Carb Calculator
Calculate net carbs by subtracting fiber from total carbohydrates for carb counting.
carbsRestaurant Meal Carb Estimator
Estimate carbohydrate content of restaurant dishes based on ingredients and portion size.
carbsCarb to Exchange Converter
Convert between carbohydrate grams and exchange units for meal planning.
carbsCarb Tolerance Calculator
Estimate individual carbohydrate tolerance based on glucose response patterns.
carbsType 2 Diabetes Risk Assessment
Assess risk of developing type 2 diabetes based on lifestyle, family history, and health factors.
riskPrediabetes Risk Calculator
Calculate prediabetes risk using A1C, fasting glucose, and risk factors (CDC guidelines).
riskDiabetes Risk Score (FINDRISC)
Calculate the Finnish Diabetes Risk Score (FINDRISC) for type 2 diabetes risk assessment.
riskA1C Diabetes Diagnosis Check
Check if your A1C level indicates prediabetes, diabetes, or normal range per ADA guidelines.
riskFasting Glucose Diagnosis Check
Check fasting glucose levels against prediabetes and diabetes diagnosis thresholds.
riskMetabolic Syndrome Risk Check
Assess metabolic syndrome risk using waist circumference, BP, glucose, HDL, and triglycerides.
riskDiabetes Family History Risk
Calculate genetic risk from family history of diabetes and related conditions.
riskLADA (Type 1.5) Risk Check
Assess risk factors for Latent Autoimmune Diabetes in Adults (LADA/Type 1.5).
riskGestational Diabetes Risk Assessment
Assess risk of gestational diabetes based on age, weight, family history, and previous history.
gestationalGestational Glucose Test Calculator
Interpret 1-hour and 3-hour glucose tolerance test (OGTT) results for GDM diagnosis.
gestationalGDM Blood Sugar Targets
Calculate target blood sugar ranges for gestational diabetes management.
gestationalGDM Meal Planner
Plan carbohydrate distribution across meals for gestational diabetes management.
gestationalGDM Insulin Dosage Calculator
Calculate insulin dosage for gestational diabetes based on blood sugar levels.
gestationalPregnancy Weight Gain with GDM
Track healthy weight gain during pregnancy with gestational diabetes.
gestationalGDM Postpartum Risk Check
Assess risk of developing type 2 diabetes after gestational diabetes.
gestationalGDM Nutritional Calculator
Calculate optimal calorie and nutrient intake for gestational diabetes.
gestationalHypoglycemia Risk Calculator
Calculate risk of hypoglycemia based on insulin, activity, and blood sugar patterns.
complicationsDiabetic Ketoacidosis (DKA) Risk
Assess DKA risk factors and recognize early warning signs.
complicationsCardiovascular Disease Risk
Assess cardiovascular risk in diabetes using ASCVD score with diabetes-specific factors.
complicationsKidney Disease (eGFR) Check
Calculate estimated GFR for diabetes-related kidney function assessment.
complicationsNeuropathy Risk Assessment
Assess risk of diabetic neuropathy based on diabetes duration and blood sugar control.
complicationsFoot Ulcer Risk Calculator
Calculate risk of diabetic foot ulcers based on neuropathy, vascular, and foot health factors.
complicationsDiabetes Eye Disease Risk
Assess risk of diabetic retinopathy and related eye complications.
complicationsOverall Diabetes Complication Score
Calculate composite risk score for diabetes-related complications.
complicationsDiabetes-Friendly Meal Planner
Plan balanced meals with appropriate carb, protein, and fat ratios for diabetes management.
nutritionCalorie & Carb Goals for Diabetes
Calculate daily calorie and carbohydrate goals for diabetes management.
nutritionDiabetes Plate Method Planner
Plan meals using the diabetes plate method (1/2 non-starchy veggies, 1/4 protein, 1/4 carbs).
nutritionGlycemic Load Meal Calculator
Calculate glycemic load of meals for better blood sugar management.
nutritionSodium Intake for Diabetes
Calculate recommended sodium intake for diabetes and hypertension management.
nutritionMeal Time Calculator
Determine optimal meal timing for blood sugar control and medication schedules.
nutritionDiabetes Grocery List Generator
Generate a diabetes-friendly grocery list based on meal plan and dietary preferences.
nutritionAlcohol & Diabetes Calculator
Calculate safe alcohol consumption guidelines for people with diabetes.
nutritionDiabetes Management Score
Calculate overall diabetes management score based on A1C, blood sugar, and lifestyle.
managementBlood Sugar Log & Progress Tracker
Track blood sugar readings, medications, and lifestyle factors over time.
managementDiabetes Medication Adherence Check
Track medication adherence and identify patterns affecting blood sugar control.
managementExercise & Blood Sugar Planner
Plan exercise timing and intensity for optimal blood sugar management.
managementTravel Diabetes Planner
Plan diabetes management for travel including time zones, meals, and medication schedules.
managementDiabetes Education Need Assessment
Assess diabetes education needs based on knowledge, skills, and confidence levels.
managementCaregiver Diabetes Support Plan
Generate a diabetes care plan for caregivers and support networks.
managementDiabetes Quality of Life Assessment
Assess the impact of diabetes on quality of life with targeted recommendations.
managementWhat Are Diabetes Calculators?
Our Diabetes Calculators collection provides a comprehensive suite of tools for managing diabetes, assessing risk, and optimizing care. Whether you're a person living with diabetes, a caregiver, a diabetes educator, or a healthcare professional, these calculators deliver accurate, actionable insights with clear explanations.
From A1C and blood sugar conversion to insulin dosage calculation, carbohydrate counting, risk assessment, and complications management, our tools cover the full spectrum of diabetes care.
How to Use This Directory
- Search: Type a keyword into the search bar to find specific calculators by name or description.
- Filter by Category: Use the dropdown to narrow down to a specific diabetes topic — each option shows the number of tools available.
- Click to Use: Each card links directly to the tool. Click on any card to start your diabetes calculation instantly.
- Explore Category Pages: Use the "Explore More Health Calculators" section to access dedicated pages for other health topics.
Why Use Our Diabetes Calculators?
- Comprehensive Coverage: Covers A1C, blood sugar, insulin, carbohydrates, risk assessment, gestational diabetes, complications, nutrition, and overall management.
- Accurate & Reliable: Uses validated clinical formulas and ADA/CDC guidelines.
- Free & Accessible: No registration, no fees — use any tool instantly on any device.
- Educational: Many tools explain the formulas and principles behind the calculations.
- Professional & Personal Use: Designed for patients, educators, and healthcare professionals.
❓ Diabetes Calculators FAQ
What types of diabetes calculations can I perform?
You can perform A1C to eAG conversion, blood sugar unit conversion (mg/dL ↔ mmol/L), insulin dosage calculations (correction factor, carbohydrate ratio), carbohydrate counting, type 2 diabetes risk assessment, gestational diabetes management, complications risk assessment, nutrition planning, and overall diabetes management tracking.
How do I convert A1C to estimated average glucose?
Use our A1C to eAG Converter. Enter your A1C percentage, and the tool will calculate your estimated average glucose (eAG) using the ADAG formula: eAG (mg/dL) = 28.7 × A1C − 46.7.
How do I convert blood sugar between mg/dL and mmol/L?
Use our Blood Sugar Converter. Enter your value and select the unit, and the tool will convert using the factor 18.018 (mmol/L × 18.018 = mg/dL).
How do I calculate my insulin correction factor?
Use our Insulin Correction Factor Calculator. Enter your total daily insulin dose, and the tool will calculate your ISF using the 1800 rule (for rapid-acting insulin) or 1500 rule (for regular insulin).
How do I assess my risk of type 2 diabetes?
Use our Type 2 Diabetes Risk Assessment. Answer questions about age, weight, family history, lifestyle, and other risk factors, and the calculator will provide a risk score and interpretation.
How do I calculate carbohydrate-to-insulin ratio?
Use our Carbohydrate-to-Insulin Ratio calculator. Enter your total daily insulin dose or use the 500/450 rule to estimate the number of grams of carbs covered by 1 unit of insulin.
How do I manage gestational diabetes?
Use our gestational diabetes calculators for risk assessment, glucose test interpretation, meal planning, and insulin dosage guidance. Always consult your healthcare provider for personalized care.
Are these calculators suitable for medical use?
Our calculators are based on validated clinical guidelines and formulas. However, they are designed for educational and informational purposes only. Always consult your healthcare provider for medical decisions.
How often are new diabetes calculators added?
We regularly add new calculators based on user requests and advances in diabetes care. If you have a suggestion, please contact us.
Can I use these calculators for diabetes education?
Yes, these calculators are ideal for diabetes education, helping patients understand their numbers and make informed decisions about their care.