Health Calculators

Protein Calculator – 45 kg – 2.0 g/kg Calculates a daily protein target for a 45 kg body weight using a 2.0 g/kg target. Enter the body weight and protein per kg. Educational estimate only. Open calculator → Protein Calculator – 75 kg – 1.2 g/kg Calculates a daily protein target for a 75 kg body weight using a 1.2 g/kg target. Enter the body weight and protein per kg. Educational estimate only. Open calculator → Protein Calculator – Endurance Protein Calculator variant focused on endurance; it performs the underlying calculation using the inputs shown. Enter the body weight and protein per kg. Educational Open calculator → Race Time Calculator – 10K Estimates finish time for a 10K from running pace. Enter the distance and pace. Educational estimate only. Open calculator → Race Time Calculator – 5K Estimates finish time for a 5K from running pace. Enter the distance and pace. Educational estimate only. Open calculator → Race Time Calculator – Marathon Estimates finish time for a Marathon from running pace. Enter the distance and pace. Educational estimate only. Open calculator → Sleep Debt Calculator – 4 Hours Sleep / 8 Hour Target Calculates weekly sleep debt when average sleep is 4 hours against a 8-hour target. Enter the average sleep and target sleep. Educational estimate only. Open calculator → Sleep Debt Calculator – 7-Hour Target Calculates weekly sleep debt against a 7-hour nightly target. Enter the average sleep and target sleep. Educational estimate only. Open calculator → Sleep Duration Calculator – 8 Hours from 00:00 Calculates an approximate wake time after 8 hours of sleep starting at 00:00. Enter the sleep duration and bedtime. Educational estimate only. Open calculator → TDEE Calculator for Shift Worker Estimates daily energy expenditure for a shift worker using Mifflin-St Jeor BMR and a selectable activity level. Enter the sex and age. Educational estimate only. Open calculator → TDEE Calculator – Age 26 – Moderately Active Estimates total daily energy expenditure at age 26 using Mifflin-St Jeor BMR and a moderately active activity factor. Enter the sex and age. Educational estimate only. Open calculator → TDEE Calculator – Age 36 – Very Active Estimates total daily energy expenditure at age 36 using Mifflin-St Jeor BMR and a very active activity factor. Enter the sex and age. Educational estimate only. Open calculator →