Health Calculators

Sleep Debt Calculator – 5 Hours Sleep / 6 Hour Target Calculates weekly sleep debt when average sleep is 5 hours against a 6-hour target. Enter the average sleep and target sleep. Educational estimate only. Open calculator → Sleep Debt Calculator – Morning Calculate accumulated sleep debt from average sleep and days. This variant is framed for morning use. Enter the average sleep and target sleep. Educational estimate only. Open calculator → Sleep Duration Calculator – 8 Hours from 22:00 Calculates an approximate wake time after 8 hours of sleep starting at 22:00. Enter the sleep duration and bedtime. Educational estimate only. Open calculator → TDEE Calculator for Student Estimates daily energy expenditure for a student using Mifflin-St Jeor BMR and a selectable activity level. Enter the sex and age. Educational estimate only. Open calculator → TDEE Calculator – Age 26 – Very Active Estimates total daily energy expenditure at age 26 using Mifflin-St Jeor BMR and a very active activity factor. Enter the sex and age. Educational estimate only. Open calculator → TDEE Calculator – Age 38 – Sedentary Estimates total daily energy expenditure at age 38 using Mifflin-St Jeor BMR and a sedentary activity factor. Enter the sex and age. Educational estimate only. Open calculator → TDEE Calculator – Age 48 – Very Active Estimates total daily energy expenditure at age 48 using Mifflin-St Jeor BMR and a very active activity factor. Enter the sex and age. Educational estimate only. Open calculator → Sleep Debt Calculator – At the Gym Calculate accumulated sleep debt from average sleep and days. This variant is framed for at the gym use. Enter the average sleep and target sleep. Educational estimate only. Open calculator → 1RM Calculator – 1 Reps – Brzycki Estimates one-repetition maximum from a 1-rep lift using the Brzycki formula. Enter the lifted weight and repetitions. Educational estimate only. Open calculator → 1RM Calculator – 14 Reps – Epley Estimates one-repetition maximum from a 14-rep lift using the Epley formula. Enter the lifted weight and repetitions. Educational estimate only. Open calculator → 1RM Calculator – 2 Rep Estimate Estimates one-repetition maximum from a 2-rep lift using a standard 1RM estimation formula. Enter the lifted weight and repetitions. Educational estimate only. Open calculator → 1RM Calculator – 3 Reps – Brzycki Estimates one-repetition maximum from a 3-rep lift using the Brzycki formula. Enter the lifted weight and repetitions. Educational estimate only. Open calculator →