Health Calculators

Race Time Calculator – Half Marathon at 10 min/km Estimates Half Marathon finish time at a 10 minute-per-kilometer pace. Enter the distance and pace. Educational estimate only. Open calculator → Sleep Cycle Calculator – Wake at 05:00 Calculates approximate sleep duration from a chosen number of sleep cycles; it is a timing estimate, not a medical sleep assessment. Enter the sleep cycles and wake time. Open calculator → Sleep Debt Calculator – 6 Hours Sleep / 8 Hour Target Calculates weekly sleep debt when average sleep is 6 hours against a 8-hour target. Enter the average sleep and target sleep. Educational estimate only. Open calculator → Sleep Duration Calculator – 6 Hours from 22:00 Calculates an approximate wake time after 6 hours of sleep starting at 22:00. Enter the sleep duration and bedtime. Educational estimate only. Open calculator → TDEE Calculator Estimates total daily energy expenditure from Mifflin-St Jeor BMR and activity level. Enter the sex and age. Educational estimate only. Open calculator → TDEE Calculator – Age 20 – Very Active Estimates total daily energy expenditure at age 20 using Mifflin-St Jeor BMR and a very active activity factor. Enter the sex and age. Educational estimate only. Open calculator → TDEE Calculator – Age 32 – Sedentary Estimates total daily energy expenditure at age 32 using Mifflin-St Jeor BMR and a sedentary activity factor. Enter the sex and age. Educational estimate only. Open calculator → TDEE Calculator – Age 42 – Very Active Estimates total daily energy expenditure at age 42 using Mifflin-St Jeor BMR and a very active activity factor. Enter the sex and age. Educational estimate only. Open calculator → TDEE Calculator – Age 54 – Moderately Active Estimates total daily energy expenditure at age 54 using Mifflin-St Jeor BMR and a moderately active activity factor. Enter the sex and age. Educational estimate only. Open calculator → BMI Calculator Calculate with the bmi calculator. See the formula, inputs, worked example, and practical guidance. Open calculator → 1RM Calculator – 11 Reps – Brzycki Calculate with the 1rm calculator – 11 reps – brzycki. See the formula, inputs, worked example, and practical guidance. Open calculator → 1RM Calculator – 16 Reps – Epley Calculate with the 1rm calculator – 16 reps – epley. See the formula, inputs, worked example, and practical guidance. Open calculator →