Health Calculators

Healthy Weight Calculator – 145 cm Height Calculates the adult BMI 18.5–24.9 weight range for a height of 145 cm. Enter the height. Educational estimate only. Open calculator → Heart Rate Reserve Calculator – At the Gym Calculate heart rate reserve from age-based maximum heart rate and resting heart rate. This variant is framed for at the gym use. Enter the resting hr and max hr. Open calculator → Hydration Calculator – Morning Estimate daily fluid needs from weight and activity. This variant is framed for morning use. Enter the body weight and fluid per kg. Educational estimate only. Open calculator → Macro Calculator – Endurance Calculates a carbohydrate, protein, and fat split for a endurance goal from a daily calorie target. Enter the daily calories and protein. Educational estimate only. Open calculator → Maximum Heart Rate Calculator for Age 25 Estimates maximum heart rate for age 25 using an age-based formula. Enter the age. Educational estimate only. Open calculator → Maximum Heart Rate Calculator for Age 41 Estimates maximum heart rate for age 41 using an age-based formula. Enter the age. Educational estimate only. Open calculator → Maximum Heart Rate Calculator for Age 57 Estimates maximum heart rate for age 57 using an age-based formula. Enter the age. Educational estimate only. Open calculator → Maximum Heart Rate Calculator for Age 73 Estimates maximum heart rate for age 73 using an age-based formula. Enter the age. Educational estimate only. Open calculator → Ovulation Calculator – 28-Day Cycle Estimates an ovulation day and fertile-window timing for a 28-day cycle using calendar arithmetic. Enter the cycle length and first day of last period. Educational estimate Open calculator → Pace Calculator – Recovery Pace Calculator for recovery 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 – 1.2 g/kg Calculates a daily protein target for a 105 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 – 130 kg – 1.6 g/kg Calculates a daily protein target for a 130 kg body weight using a 1.6 g/kg target. Enter the body weight and protein per kg. Educational estimate only. Open calculator →