Free Tools

Healthcare Tools

Free calculators and reference tools. No account, email address, or optional-analytics consent required to use them, and health values you enter never leave your browser.

Adult BMI Calculator

Calculate adult Body Mass Index from height and weight and see the CDC/NIH screening category.

BMR / Resting Energy Estimate

Estimate resting energy expenditure using the Mifflin-St Jeor equations.

TDEE Calculator

Compare estimated total daily energy expenditure across different activity-level assumptions.

Body-Fat Estimate (Relative Fat Mass)

Estimate body-fat percentage from height and waist using the published Relative Fat Mass equation.

Adult Healthy-Weight Reference Range

See the BMI-derived healthy-weight range (18.5-24.9 BMI) for a given adult height.

Calorie Scenario Calculator

See the arithmetic of a modest planning adjustment to your estimated maintenance calories.

Water-Intake Reference Planner

See the adult adequate-intake water reference, split into food and beverage portions.

Protein Reference Calculator

Compare the adult RDA protein reference with a commonly cited athlete range for your body weight.

Fiber Reference Calculator

Scale the dietary-fiber density reference to your daily calorie intake.

Pulse-Pressure Calculator

Calculate the difference between a systolic and diastolic blood pressure reading.

Target-Heart-Rate Estimate

Estimate approximate exercise-intensity heart-rate ranges, including a 5-zone training breakdown.

Blood-Glucose Unit Converter

Convert a glucose reading between mg/dL and mmol/L.

Smoking Pack-Year Calculator

Summarize cigarette exposure across one or two smoking periods.

Steps-to-Distance Calculator

Estimate walking distance from a step count and your own measured average step length.

Distance-to-Steps Calculator

Estimate how many steps it takes to cover a given distance, using your own step length.

Walking Energy Estimate

Estimate gross and net activity energy for a walk, using a standard MET-based convention.

Running Pace / Finish-Time Calculator

Calculate pace and average speed from a distance and elapsed time, and project a finish time at the same pace.

Estimated One-Repetition Maximum

Estimate an approximate one-rep max from a submaximal set, using the Epley formula.

Medical/Common Unit Converter

Convert between common everyday and clinical units: weight, length, temperature, mass, and volume.

Medical Abbreviation Lookup

Look up common medical abbreviations you might see on a chart or after-visit summary.

Medical Terminology Lookup

Plain-language definitions for common medical terms you might hear from a care team.

Coinsurance Scenario Calculator

Model a simplified in-network coinsurance scenario using an insurer allowed amount.

Deductible Progress Calculator

See how much of your annual insurance deductible has been met, and what's left.

User-Entered Medical-Cost Scenario

Process up to three claims in order through a deductible-then-coinsurance scenario, using amounts you supply.

No-Show Opportunity-Cost Calculator

Model the appointment capacity your practice loses to no-shows, and a backfill-rate scenario.

Patient Retention Calculation

Calculate what share of your original active-patient cohort your practice retained over a period.

Patient Acquisition Cost

Divide your acquisition spend by the new patients it's attributed to, for a matching period.

Revenue Per Patient

Divide collected revenue by unique patients served over the same period.

Appointment Capacity

Estimate schedulable appointment slots from your providers' actual available time.

Practice Break-Even Calculator

Model how many visits it takes to cover fixed costs, given a simplified per-visit contribution.

Waist-to-Height Ratio

Calculate the ratio of your waist circumference to your height.

Macronutrient Split Calculator

Convert a chosen protein/carbohydrate/fat percentage split into grams for a daily calorie total.

Age Calculator

Calculate completed age in years between a birth date and any comparison date.

Date Interval Calculator

Calculate the number of whole days between two dates.

Sleep-Duration Planner

Calculate elapsed sleep time between a bedtime and a wake time.

Appointment Conversion Rate

Calculate what share of eligible inquiries actually became booked appointments.

Staff Ratio Calculator

Calculate staff FTE per 1,000 active patients.

Practice ROI Scenario

Calculate the return-on-investment percentage for a program, given its incremental profit and cost.

FSA Savings Scenario

Estimate federal tax savings from your own elected FSA contribution and marginal tax rate.

Copay Explainer

Calculate total copay cost across a number of covered visits, under a fixed-copay benefit assumption.

General Practice Revenue

Calculate revenue from completed visits and average revenue per visit.

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