BodyCalWhat we do
BodyCal makes free health and fitness calculators that are accurate, fast, and genuinely pleasant to use. Most calculator sites are cluttered and hard to read; we built BodyCal to give you a clear answer — your calorie target, BMI, body fat, ideal weight, hydration needs, and more — with interactive charts and plain-English explanations, and nothing in the way.
Our methodology
Every calculator is built on established, peer-reviewed formulas rather than made-up numbers. We use the Mifflin–St Jeor equation for metabolism, World Health Organization ranges for BMI, the U.S. Navy circumference method for body fat, and validated equations for ideal weight, among others. Each calculator page lists its scientific sources so you can check the research yourself.
Editorial standards
Our articles are researched and reviewed against current, reputable sources and are written to inform, not to sell. We don't publish miracle cures, guaranteed-results claims, or promotions for unverified supplements. Where the science is uncertain or individual, we say so. Our content is for education only and is never a substitute for advice from a qualified healthcare professional — see our Terms of Service for the full disclaimer.
Privacy first
Your numbers are yours. Every calculation runs entirely in your browser — the measurements you enter are never sent to us, stored, or shared. You can read the details in our Privacy Policy.
Get in touch
Have feedback, spotted an error, or want to suggest a calculator? We'd love to hear from you — head to our contact page or email contact@bodycal.net.