Health calculators

Screening tools, body metrics, and calorie math you can trust.

BMI, body fat, BMR, and other health screening tools — clearly labelled as informational rather than diagnostic, with citations for each formula.

Calculators
56
Topics: All Body Metrics (56) Calories (14)
56 results
Health / Body Metrics

HAS-BLED Score Calculator

Compute the HAS-BLED score, a 9-item risk index for major bleeding in patients with atrial fibrillation on anticoagulati...

basic
16,693 4.7 1 min
Health / Body Metrics

Body Fat Calculator

Estimate body fat percentage from circumference measurements using the US Navy tape-measure method.

basic
9,939 4.0 1 min
Health / Body Metrics

MELD-Na Score Calculator

Compute the MELD-Na score (UNOS sodium-adjusted MELD) used to prioritise liver transplant candidates, from serum creatin...

basic
5,104 4.7 1 min
Health / Body Metrics

BMI Prime Calculator

Compute BMI Prime (BMI divided by the upper-normal threshold of 25), an at-a-glance ratio that tells you how far above o...

basic
16,862 4.6 1 min
Health / Body Metrics

Body Fat (Navy) Calculator

Estimate body fat percentage using the US Navy circumference method, which uses neck, waist, and (for women) hip measure...

basic
9,905 4.5 1 min
Health / Body Metrics

Ideal Weight Calculator

Healthy-weight range for your height using multiple published formulas (Devine, Robinson, Miller, Hamwi) — averaged for...

basic
9,592 4.5 1 min
Health / Body Metrics

PERC Rule Calculator

Compute the Pulmonary Embolism Rule-out Criteria (PERC). If a patient is low pre-test risk and meets all 8 PERC criteria...

basic
3,101 4.5 1 min
Health / Body Metrics

Waist-to-Hip Ratio Calculator

Calculate your waist-to-hip ratio and see where it falls in the standard health-risk categories used by major health bod...

basic
19,529 4.4 1 min
Health / Body Metrics

Menstrual Cycle Calculator

Predict the next several menstrual periods, ovulation dates, and fertile windows from the first day of your last period...

basic
3,841 4.8 1 min
Health / Body Metrics

Parkland Formula Calculator

Compute the 24-hour Parkland fluid resuscitation volume for a burn patient (4 mL × kg × % TBSA), with the first half del...

basic
23,833 4.0 1 min
Health / Body Metrics

Body Surface Area Calculator

Estimate body surface area in m² from height and weight using the DuBois & DuBois formula — useful for medication dosing...

basic
15,299 4.7 1 min
Health / Body Metrics

Blood Pressure Classifier

Classify a blood pressure reading (systolic & diastolic) using the 2017 ACC/AHA categories: Normal, Elevated, Stage 1, S...

basic
13,826 4.7 1 min
Health / Body Metrics

Lean Body Mass Calculator

Estimate lean body mass (everything that isn't fat) using the Boer formula and your sex, height, and weight.

basic
23,519 4.2 1 min
Health / Body Metrics

Child-Pugh Score Calculator

Compute the Child-Pugh score for chronic liver disease severity from bilirubin, albumin, INR, ascites, and encephalopath...

basic
1,789 4.9 1 min
Health / Body Metrics

Free Water Deficit Calculator

Compute the free-water deficit in litres for a hypernatremic patient, using the Adrogué-Madias formulation: deficit = TB...

basic
21,256 4.9 1 min
Health / Body Metrics

MEWS Score Calculator

Compute the Modified Early Warning Score (MEWS), a bedside ward score that flags patients at risk of clinical deteriorat...

basic
10,646 5.0 1 min
Health / Body Metrics

Pregnancy Trimester Calculator

Determine the current trimester, gestational age in weeks, and weeks remaining until the estimated due date from the fir...

basic
4,062 4.2 1 min
Health / Body Metrics

CURB-65 Score Calculator

Compute the CURB-65 score for community-acquired pneumonia: 1 point each for Confusion, Urea > 7 mmol/L, Respiratory rat...

basic
18,138 4.7 1 min