Health & Medical Calculators

Estimate gait speed from walk distance and time, then review fall-risk context, community ambulation status, and trend-oriented mobility follow-up guidance.

Calculate amniotic fluid index (AFI) from four quadrant inputs, compare SDP context, and review boundary-aware interpretation for prenatal follow-up discussion.

Calculate target weight from desired BMI and height with healthy-range context, formula trace, and practical weight-change planning support.

Estimate urine osmolality from sodium, potassium, urea, and glucose inputs, with optional urine/serum ratio for concentration-context interpretation.

Estimate microbial log reduction from counts, or project survivors and initial load from target log values with process-interpretation context.

Estimate weekly sleep debt from 7-day sleep history, with deficit severity context, recovery timeline, suggested bedtime, and practical schedule guidance.

Estimate walking calories from step count, body weight, and pace-specific MET assumptions, with distance, duration, and planning-focused interpretation context.

Estimate lean body mass (LBM), fat mass, BMI, and FFMI using Boer equations or direct body-fat input, with interpretation context for training and nutrition planning.

Estimate mean arterial pressure (MAP) from systolic and diastolic blood pressure with perfusion-context interpretation, formula explanation, and structured follow-up guidance.

Plan intermittent fasting protocols (14:10 to OMAD and 5:2) with eating-window timing, meal distribution, hydration targets, and practical safety notes.

Estimate body frame size (small, medium, large) using wrist-to-height ratio with a height-only fallback, plus interpretation notes for realistic weight-planning context.

Calculate serum osmolality from sodium, glucose, and BUN with optional osmolal-gap estimation using measured osmolality. Includes interpretation guidance and follow-up context.

Calculate anion gap from sodium, chloride, and bicarbonate with optional potassium mode and albumin correction. Includes interpretation bands and follow-up guidance.

Calculate pulse pressure from systolic and diastolic blood pressure with interpretation context, MAP estimate, and follow-up planning guidance.

Estimate albumin-adjusted corrected calcium from total calcium and albumin with formula transparency, interpretation context, and follow-up planning guidance.

Estimate cycling calories with MET-based intensity and terrain context using weight, duration, distance, and speed for practical ride-planning analysis.

Calculate LDL/HDL cholesterol ratio with optional Friedewald LDL estimate context, unit conversion support, and practical follow-up interpretation guidance.

Calculate morphine milligram equivalents (MME) from opioid doses for educational risk screening. Includes common conversion factors and daily MME totals.

Calculate DOTS score from body weight and powerlifting total (or squat + bench + deadlift) for relative-strength comparison and meet-cycle planning.

Estimate BMR and daily calorie needs (TDEE) with Mifflin-St Jeor and activity multipliers for maintenance, deficit, and surplus planning.

Calculate waist-to-hip ratio (WHR) with sex-specific risk context bands, measurement-quality guidance, and practical trend-tracking recommendations.

Calculate Total/HDL and LDL/HDL cholesterol ratios with cardiovascular risk context and interpretation guidance.

Estimate IVF due date from embryo transfer date and embryo age, with trimester timing and milestone dates for planning context.

Calculate BMR with the Mifflin-St Jeor equation and estimate TDEE by activity level. Supports kg/lb and cm/in for practical nutrition planning.

Estimate a legacy ACFT-style six-event score for training review and historical comparison. Includes event-level breakdown, total score bands, and shareable input links.

Calculate exact chronological age from birth date to any target date. Get years, months, days breakdown with leap year handling and next birthday countdown.

Calculate body fat with US Navy method using neck, waist, and hip (women) measurements. See category, fat/lean mass, unit options, and measurement tips.

Calculate BMI using WHO standards and see your category plus ideal weight range. Enter weight and height in metric or imperial units and get clear guidance.