Health7 min read
Lean Body Mass Calculator: Formulas and Examples
Lean body mass: subtract fat mass from weight, or use the Boer formula when body fat is unknown, with worked examples in kilograms.
The Calcylator Blog
Big ideas for
everyday numbers.
Practical guides, clear examples, and smarter ways to calculate.
Health guides
13 articles
- Health6 min read
Macro Nutrients Calculator: Calories to Grams
Macro nutrients: split any calorie target into grams of protein, carbohydrate and fat, with a 1,800 kcal worked example.
- Health6 min read
Protein Intake Calculator: Grams Per Day by Weight
Protein intake calculator guide: multiply body weight by a grams-per-kg factor, see a 62 kg example and a chart from 50 to 90 kg.
- Health6 min read
TDEE Calculator: Formula and Activity Multipliers
Calculate TDEE by multiplying BMR by an activity factor of 1.2 to 1.9. See a 1,500 kcal BMR at five levels and learn to choose your factor honestly.
- Health6 min read
Weight Loss Calories: How Much to Eat Per Day
Weight loss calories: turn a goal in kg and weeks into a daily calorie target, with a 5 kg in 16 weeks worked example.
- Health4 min read
Understanding your BMI result
Find out what your BMI means, how it's calculated, and how to interpret your result correctly.
Put what you learn into practice.
Explore our free calculators and apply these concepts to your own numbers.