CALCULATOR CATEGORY

Health Calculators

Free health and fitness calculators for BMI, calories, BMR, body fat, ideal weight and other health-related calculations.

TOOLS

Health Calculators

Choose a calculator below to get started.

Calorie Calculator – Age 46 – Weight Gain Calorie Calculator – Age 46 – Weight Gain calculator with a clear formula, worked example, inputs, and educational interpretation. Sample: 2,683.1 kcal/day. Open calculator → Calorie Calculator – Age 56 – Weight Loss Calorie Calculator – Age 56 – Weight Loss calculator with a clear formula, worked example, inputs, and educational interpretation. Sample: 1,805.6 kcal/day. Open calculator → Calorie Calculator – Age 68 – Maintenance Calorie Calculator – Age 68 – Maintenance calculator with a clear formula, worked example, inputs, and educational interpretation. Sample: 2,212.6 kcal/day. Open calculator → Calorie Calculator – Age 78 – Weight Gain Convert a calorie allocation into carbohydrate grams with calorie calculator – age 78 – weight gain. Includes the formula, example, and practical interpretation. Open calculator → Calories Burned Calculator – Beginner Convert a calorie allocation into carbohydrate grams with calories burned calculator – beginner. Includes the formula, example, and practical interpretation. Open calculator → Calories Burned Calculator – MET 12 – 30 Minutes Convert a calorie allocation into carbohydrate grams with calories burned calculator – met 12 – 30 minutes. Includes the formula, example, and practical interpretation. Open calculator → Calories Burned Calculator – MET 5 – 30 Minutes Convert a calorie allocation into carbohydrate grams with calories burned calculator – met 5 – 30 minutes. Includes the formula, example, and practical interpretation. Open calculator → Calories Burned Calculator – MET 9 – 30 Minutes Convert a calorie allocation into carbohydrate grams with calories burned calculator – met 9 – 30 minutes. Includes the formula, example, and practical interpretation. Open calculator → Carbohydrate Calculator – Endurance Convert a calorie allocation into carbohydrate grams with carbohydrate calculator – endurance. Includes the formula, example, and practical interpretation. Open calculator → Gestational Age Calculator – Week 12 Calculates estimated gestational age from the last menstrual period and shows a week-based pregnancy estimate. Enter the first day of last period. Educational estimate only. Open calculator → Healthy Weight Calculator – 155 cm Height Calculates the adult BMI 18.5–24.9 weight range for a height of 155 cm. Enter the height. Educational estimate only. Open calculator → Heart Rate Reserve Calculator – Daily Calculate heart rate reserve from age-based maximum heart rate and resting heart rate. This variant is framed for daily use. Enter the resting hr and max hr. Educational Open calculator →