Health Calculators
A single, organized home for every health calculator on DexoCalc — from peptide dosing and body composition to metabolic, clinical risk, and longevity tools. Each calculator is built with clinician-reviewed formulas and cited source data, so you can move from question to answer in seconds.
Peptide & Dosage Calculators
Start with our pillar tool, then dial in dosing for a specific compound.
Peptide Calculator
Convert vial concentration, reconstitution volume, and target dose into an exact syringe reading — the starting point for every peptide protocol on this site.
Open CalculatorBPC-157 Dosage Calculator
Reconstitution and dosing math for BPC-157 protocols.
→Retatrutide Dosage Calculator
Trial-referenced dose lookup for retatrutide research protocols.
→CJC-1295 / Ipamorelin Dosage Calculator
Combined dosing calculator for this common growth-hormone-releasing stack.
→Tirzepatide Dosage Calculator
Titration-schedule-aware dosing for tirzepatide protocols.
→Tesamorelin Dosage Calculator
Reconstitution and nightly dosing math for tesamorelin.
→Weight & Body Composition
Measure and track body size, shape, and composition.
BMI (Body Mass Index) Calculator
Standard adult BMI with category breakdown.
→Child BMI Percentile Calculator
Growth-chart-based BMI percentile for kids and teens.
→Body Fat Percentage Calculator
Estimate body fat using circumference-based formulas.
→Army Body Fat Calculator
Official Army Body Fat Standard (AR 600-9) tape-test method.
→Lean Body Mass (LBM) Calculator
Fat-free mass using validated clinical formulas.
→Ideal Weight Calculator
Devine, Robinson, and Miller formula comparison.
→Healthy Weight Range Calculator
BMI-based healthy weight window for your height.
→Waist-to-Hip Ratio (WHR) Calculator
WHO risk-band classification by sex.
→Waist-to-Height Ratio Calculator
Simple, sex-independent central-adiposity screen.
→Body Surface Area (BSA) Calculator
Du Bois and Mosteller formulas for clinical dosing.
→ABSI (A Body Shape Index) Calculator
Mortality-risk-linked shape index beyond BMI.
→Ponderal Index Calculator
Height-adjusted mass index, useful for extremes of stature.
→Nutrition, Diet & Metabolism
Plan intake, energy needs, and macro targets.
Calorie Calculator
Daily calorie needs for maintenance, loss, or gain.
→BMR (Basal Metabolic Rate) Calculator
Mifflin-St Jeor and Harris-Benedict comparison.
→TDEE (Total Daily Energy Expenditure) Calculator
Activity-adjusted total daily energy burn.
→Macro (Macronutrient Split) Calculator
Protein, carb, and fat targets for your goal.
→Protein Requirement Calculator
Daily protein target by body weight and activity level.
→Carbohydrate Intake Calculator
Daily carb range by goal and training volume.
→Fat Intake Calculator
Healthy daily fat range from total calorie target.
→Water / Hydration Intake Calculator
Daily fluid target by weight, climate, and activity.
→Intermittent Fasting Calculator
Build a fasting/eating window schedule that fits your day.
→Safe Daily Caffeine Intake Calculator
FDA-referenced daily caffeine ceiling by body weight.
→Clinical & Chronic Disease Risk
Screening-style tools referenced against clinical scoring systems.
Cardiovascular / Heart Disease Risk Calculator (ASCVD)
10-year atherosclerotic cardiovascular disease risk estimate.
→Stroke Risk Calculator (CHA₂DS₂-VASc)
Stroke risk scoring for atrial fibrillation patients.
→Diabetes Risk Assessment Calculator
Type 2 diabetes risk screen from common risk factors.
→GFR / Kidney Function Calculator
Estimated glomerular filtration rate (eGFR) by CKD-EPI.
→Creatinine Clearance Calculator
Cockcroft-Gault creatinine clearance estimate.
→HOMA-IR (Insulin Resistance) Calculator
Insulin resistance index from fasting glucose and insulin.
→Lung Cancer Risk Calculator
Smoking-history-based lung cancer risk screening tool.
→Blood Volume Calculator
Estimated total blood volume by weight, sex, and height.
→Pediatric Medication Dosage Calculator
Weight-based pediatric dosing reference calculator.
→Longevity, Sleep & Lifestyle
Track the day-to-day habits that shape long-term health.
Biological Age Calculator
Lifestyle-adjusted biological age versus chronological age.
→Metabolic Age Calculator
Compare your BMR to population averages by age.
→Sleep / Sleep Cycle Calculator
Optimal bedtime and wake time by 90-minute sleep cycles.
→BAC (Blood Alcohol Concentration) Calculator
Widmark-formula BAC estimate by weight, sex, and drinks.
→Smoking Risk & Cost Calculator
Lifetime cost and health-risk snapshot of a smoking habit.
→Stress Load Calculator
Score cumulative stress load from common life-event inputs.
→Blue Light Exposure Calculator
Estimate daily screen-driven blue light exposure.
→Air Quality Exposure Calculator
Estimated pollutant exposure from local AQI and time outdoors.
→How These Calculators Are Built
Every calculator in this hub is built from published clinical formulas, government health data, or peer-reviewed reference ranges, and is reviewed by a registered pharmacist for accuracy before publishing. None of these tools are a substitute for professional medical advice — results are for general education, and any dosing, risk, or clinical output should be discussed with a licensed healthcare provider before acting on it. Learn more from the CDC and the NIH.