Health

Browse 20 Murelio browser utilities for health reference calculations. Open each focused tool immediately without installing software or creating an account.

• BMI Calculator

  Calculate BMI and CDC adult BMI category for people age 20 and older.

• Ideal Weight Calculator

  Compare four classic ideal-body-weight reference equations: Devine, Robinson, Miller, and Hamwi.

• Body Fat Estimate

  Estimate body-fat percentage with the U.S. Navy circumference equations using height, neck, waist, and reference sex.

• BMR Calculator

  Estimate basal metabolic rate with the Mifflin–St Jeor equation from reference sex, age, weight, and height.

• TDEE Calculator

  Estimate total daily energy expenditure by multiplying Mifflin–St Jeor BMR by a selected activity factor.

• Calorie Deficit Calculator

  Compare maintenance calories with intake as daily and seven-day energy difference.

• Water Intake Calculator

  Convert the NHS general 6–8 cups/glasses hydration guide into counts of your cup or bottle.

• Protein Intake Calculator

  Convert a chosen protein target in g/kg/day into grams per day from body weight.

• Running Pace Calculator

  Calculate average running pace and speed in both kilometre and mile units from distance and elapsed time.

• Running Speed Calculator

  Calculate average running speed in km/h or mph from distance and elapsed time.

• Heart Rate Zone Calculator

  Calculate age-predicted maximum heart rate and general moderate/vigorous target zones for adults.

• Maximum Heart Rate

  Show an age-predicted maximum heart-rate reference using about 220−age plus general intensity bands.

• Waist-to-Height Ratio

  Calculate waist-to-height ratio and the NICE adult bands implemented by the runner.

• Body Surface Area

  Calculate body surface area with Mosteller or Du Bois and compare both results.

• Pregnancy Weight Gain Guide

  Show CDC total pregnancy weight-gain reference ranges in kilograms from pre-pregnancy BMI and singleton/twin status.

• Sleep Cycle Calculator

  Back-calculate three bedtime options from a target wake time using 4, 5, or 6×90-minute cycles plus sleep-onset time.

• Caffeine Half-life Calculator

  Model caffeine remaining after elapsed time using an initial amount and a user-chosen half-life.

• Alcohol Unit Calculator

  Calculate UK alcohol units, pure-alcohol millilitres, and approximate grams from drink volume and ABV.

• Carbohydrate Ratio

  Apply the 500 rule to total daily insulin dose (TDD) to estimate a starting grams-of-carbohydrate-per-unit ratio.

• Lean Body Mass Estimate

  Compare Boer, James, and Hume lean-body-mass estimates from reference sex, weight, and height.