About Calora
Clear, science-based nutrition numbers — free, fast, and private.
Calora was created to answer one deceptively simple question as accurately as possible: how many calories do you actually need each day? Around that question we've built a suite of free tools covering calories, TDEE, BMR, macros, and goal-based planning for weight loss, maintenance, and muscle gain.
What we believe
Good nutrition decisions start with good numbers. Too many calculators hide their math behind a black box or bury it in ads and sign-up walls. We take the opposite approach: every result is calculated live in your browser, the formulas are transparent, and interactive diagrams show exactly how your number is built.
The science we use
Our calculators use widely accepted, peer-reviewed equations — the Mifflin–St Jeor formula for BMR, standard activity multipliers for TDEE, and the Katch-McArdle equation when body-fat percentage is known. We also build in sensible safety floors so the tools never recommend unsustainably low intakes. You can read more in our editorial guidelines.
Privacy first
We don't require an account, and your height, weight, age, and goals never leave your device — all calculations run entirely client-side. See our privacy policy for details.
Get in touch
Questions, corrections, or feedback are always welcome. Email us at admin@Calculator-Calorie.com or visit our contact page.