Health Calculators

Maximum Heart Rate Calculator for Age 59 Estimates maximum heart rate for age 59 using an age-based formula. Enter the age. Educational estimate only. Open calculator → Maximum Heart Rate Calculator for Age 75 Estimates maximum heart rate for age 75 using an age-based formula. Enter the age. Educational estimate only. Open calculator → Ovulation Calculator – 32-Day Cycle Estimates an ovulation day and fertile-window timing for a 32-day cycle using calendar arithmetic. Enter the cycle length and first day of last period. Educational estimate Open calculator → Pace Calculator – Training Day Pace Calculator for training day planning; calculates the result from the inputs displayed on the calculator. Enter the distance and time. Educational estimate only. Open calculator → Protein Calculator – 105 kg – 2.0 g/kg Calculates a daily protein target for a 105 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 – 135 kg – 1.2 g/kg Calculates a daily protein target for a 135 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 – 50 kg – 1.6 g/kg Calculates a daily protein target for a 50 kg body weight using a 1.6 g/kg target. Enter the body weight and protein per kg. Educational estimate only. Open calculator → Protein Calculator – 75 kg – 2.0 g/kg Calculates a daily protein target for a 75 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 – Sedentary Protein Calculator variant focused on sedentary; it performs the underlying calculation using the inputs shown. Enter the body weight and protein per kg. Educational Open calculator → Race Time Calculator – 10K at 4 min/km Estimates 10K finish time at a 4 minute-per-kilometer pace. Enter the distance and pace. Educational estimate only. Open calculator → Race Time Calculator – 5K at 4 min/km Estimates 5K finish time at a 4 minute-per-kilometer pace. Enter the distance and pace. Educational estimate only. Open calculator → Race Time Calculator – Marathon at 4 min/km Estimates Marathon finish time at a 4 minute-per-kilometer pace. Enter the distance and pace. Educational estimate only. Open calculator →