Health Calculators

BMR Calculator for Age 29 Calculates BMR for an adult age 29 using the Mifflin-St Jeor equation. Enter the sex and age. Educational estimate only. Open calculator → BMR Calculator for Age 45 Calculates BMR for an adult age 45 using the Mifflin-St Jeor equation. Enter the sex and age. Educational estimate only. Open calculator → BMR Calculator for Age 61 Calculates BMR for an adult age 61 using the Mifflin-St Jeor equation. Enter the sex and age. Educational estimate only. Open calculator → BMR Calculator for Age 77 Calculates BMR for an adult age 77 using the Mifflin-St Jeor equation. Enter the sex and age. Educational estimate only. Open calculator → Body Fat Change Percentage Calculator Calculates the percentage change between the two values you enter for body fat change percentage. Enter the starting body fat and current body fat. Educational estimate only. Open calculator → Calorie Calculator – 35% Adjustment Calculates a 35% calorie adjustment from a base calorie value. Enter the base calories and adjustment. Educational estimate only. Open calculator → Calorie Calculator – Age 24 – Weight Loss Calorie Calculator – Age 24 – Weight Loss calculator with a clear formula, worked example, inputs, and educational interpretation. Sample: 2,053.6 kcal/day. Open calculator → Calorie Calculator – Age 36 – Maintenance Calorie Calculator – Age 36 – Maintenance calculator with a clear formula, worked example, inputs, and educational interpretation. Sample: 2,460.6 kcal/day. Open calculator → 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 →