All Health Tools
34 free, evidence-based calculators and assessments. Each paired with an in-depth article.
Pregnancy Weight Gain Calculator
Week-by-week tracking based on IOM guidelines with visual trajectory chart.
Calculator + Guide →TDEE Calculator
Total Daily Energy Expenditure using Mifflin-St Jeor equation.
Calculator + Guide →BMI Calculator
Visual gauge with age and gender-adjusted interpretation.
Calculator + Guide →Stress Level Test
PSS-10 based clinically validated stress assessment.
Calculator + Guide →Due Date Calculator
Estimated delivery date from LMP, conception, or IVF transfer.
Calculator + Guide →Macro Calculator
Personalized macro splits for keto, PCOS, balanced, and more.
Calculator + Guide →HCG Doubling Time
Track early pregnancy HCG levels and doubling rate.
Calculator + Guide →A1C to Blood Sugar Converter
Convert A1C percentage to estimated average blood sugar.
Calculator + Guide →Body Fat Calculator
Navy method and skinfold-based body fat estimation.
Calculator + Guide →Calorie Deficit Calculator
Calculate your ideal deficit for sustainable weight loss.
Calculator + Guide →Ovulation Calculator
Predict your most fertile days based on cycle length.
Calculator + Guide →Sleep Quality Calculator
PSQI-based sleep quality assessment with improvement tips.
Calculator + Guide →Fetal Weight Percentile
Track baby's growth against WHO standards week by week.
Calculator + Guide →Protein Intake Calculator
Daily protein needs based on weight, activity, and goals.
Calculator + Guide →BMI Calculator for Teens
Age and sex-specific BMI percentiles for ages 2-19.
Calculator + Guide →GFR Calculator
Estimate kidney function using the CKD-EPI 2021 equation.
Calculator + Guide →Pregnancy Safe Food Checker
Search if a food is safe to eat during pregnancy.
Calculator + Guide →BMR Calculator
Basal Metabolic Rate using Mifflin-St Jeor and Harris-Benedict.
Calculator + Guide →One Rep Max Calculator
Estimate your 1RM with percentage-based training chart.
Calculator + Guide →Ideal Weight Calculator
Four formulas compared — Devine, Robinson, Miller, Hamwi.
Calculator + Guide →Burnout Quiz
Assess burnout risk across exhaustion, cynicism, and efficacy.
Calculator + Guide →Anxiety Self-Assessment
GAD-7 clinically validated anxiety screening.
Calculator + Guide →Lean Body Mass Calculator
Estimate lean mass using Boer and James formulas.
Calculator + Guide →Calorie Calculator for Women Over 50
Daily calorie needs with menopause and sarcopenia considerations.
Calculator + Guide →Contraction Timer
Track contraction frequency, duration, and the 5-1-1 pattern.
Calculator + Guide →ADHD Self-Assessment
ASRS v1.1 Part A screener for adult ADHD.
Calculator + Guide →Anemia Risk Checker
Symptom-based anemia risk screening.
Calculator + Guide →Body Frame Size Calculator
Determine small, medium, or large frame from wrist measurement.
Calculator + Guide →TDEE Calculator for Teens
Growth-adjusted calorie needs for ages 10-19.
Calculator + Guide →Protein Needs for Seniors
Daily protein targets for 65+ to prevent sarcopenia.
Calculator + Guide →Kidney Function Calculator
Detailed CKD staging with action recommendations.
Calculator + Guide →Macro Calculator for PCOS
PCOS-specific macro splits by phenotype.
Calculator + Guide →IVF Due Date Calculator
Due date from IVF transfer — 3-day or 5-day, fresh or FET.
Calculator + Guide →Baby Growth Percentile
WHO growth standards from birth to 5 years.
Calculator + Guide →Sleep Calculator
Ideal bedtime by sleep cycles and age group.
Calculator + Guide →Cholesterol Ratio Calculator
TC/HDL, LDL/HDL, and triglyceride/HDL ratios.
Calculator + Guide →Waist-to-Hip Ratio
WHO cardiovascular risk from waist and hip measurements.
Calculator + Guide →Vitamin D Calculator
Daily IU needs by body weight and current level.
Calculator + Guide →Thyroid Function Calculator
TSH interpretation with pregnancy-adjusted ranges.
Calculator + Guide →Postpartum Depression Screening
Edinburgh Postnatal Depression Scale (EPDS).
Calculator + Guide →