17 clinical-grade calculators with instant results and optimal ranges. No account required.
Calculate your insulin resistance score from fasting glucose and fasting insulin.
Fasting glucose + insulin → insulin resistance score
Convert between average blood glucose and estimated A1C. Bidirectional conversion.
Average glucose ↔ A1C conversion
Calculate your basal metabolic rate and total daily energy expenditure with calorie targets.
Age + weight + height + activity → daily calories
Calculate protein, carbs, and fat targets based on your TDEE and diet style.
TDEE + goal + diet style → daily macro grams
Calculate BMI with metabolic context — understand why BMI alone is not enough.
Weight + height → BMI + metabolic context
A better predictor of cardiovascular risk than BMI. Simple waist and height measurement.
Waist + height → cardiovascular risk category
Calculate daily protein needs by goal and activity with per-meal targets and food equivalents.
Weight + goal + activity → daily protein grams
Estimate kidney function with the 2021 CKD-EPI race-free equation and CKD staging.
Creatinine + age + sex → eGFR + CKD stage
Interpret your lipid panel with TG/HDL ratio, non-HDL cholesterol, and ApoB analysis.
Lipid panel → multi-metric cardiovascular risk
Calculate transferrin saturation and interpret iron patterns — deficiency, anemia, or overload.
Iron + TIBC + ferritin → pattern assessment
Analyze your diurnal cortisol curve from saliva or blood test results.
AM/PM cortisol → diurnal pattern analysis
Calculate your optimal vitamin D dose based on current level, target, and body weight.
Current level + weight → daily dose + timeline
See how caffeine levels change throughout your day and when to stop for better sleep.
Intake + timing → caffeine curve + sleep cutoff
Calculate personalized daily water needs based on weight, activity, climate, and caffeine.
Weight + activity + climate → daily water target
Calculate sleep efficiency from bed times and wake periods with CBT-I improvement tips.
Bed/wake times → efficiency % + personalized tips
Estimate your current menstrual cycle phase with ovulation window and phase-specific tips.
Last period + cycle length → current phase + tips
Estimate starting levothyroxine dose by weight and indication with available tablet sizes.
Weight + indication → starting dose + tablet size
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