Free calculators built on published formulas, with the method explained on every page. They run entirely in your browser: nothing you type is sent to us or stored.
Guides in this section
- Calorie Deficit Calculator (TDEE)Estimate maintenance calories and a guideline-based weight-loss range.
- Protein Calculator for Weight LossDaily and per-meal protein targets based on research ranges.
- Steps to Calories CalculatorHow many calories your daily steps burn, by weight and pace.
- BMI Calculator for AdultsYour BMI, CDC category and healthy-weight range for your height.
A note on numbers
Every calculator gives an estimate. Formulas describe averages, and individuals vary. Use the results as a starting point, track your real-world trend for a few weeks, and discuss targets with your doctor or a registered dietitian, especially if you have a health condition or take medication.