Our mission
Most people want to eat better, move more and feel healthier, but the numbers behind those goals — calories, macros, body composition, hydration — can be confusing. Our mission is to make them clear, accurate and accessible to everyone, for free.
How we build our tools
- Peer-reviewed formulas: we use established equations such as Mifflin-St Jeor and the U.S. Navy body fat method.
- Transparency: every calculator explains its formula, accuracy and limitations.
- Privacy: calculations run entirely in your browser; we do not store your inputs.
Editorial standards
Our articles are written to reflect current scientific consensus and are reviewed for accuracy. We update content as new research emerges and clearly separate information from medical advice.
Important
fitbmicalc is an educational resource. It is not a medical provider. Please read our Medical Disclaimer and consult a qualified professional for personal health decisions.