Free fitness and nutrition tools that make your numbers simple
Use beginner-friendly calculators to estimate calories, macros, protein, hydration, and goal timelines without needing a complicated app.
8 core calculators
Covering calories, macros, protein, hydration, BMI, maintenance, and goal planning.
Beginner reading path
Start with TDEE, then calorie deficit, then macros, then protein and the support tools.
Educational first
The site is designed to explain the numbers as well as calculate them.
Featured tools
Start with the calculators that matter most first
These are the best entry points for most users. They create the clearest path through the rest of the site.
TDEE Calculator
ToolEstimate maintenance calories using age, sex, height, weight, and activity level.
Open calculator →
Calorie Deficit Calculator
ToolTurn your maintenance calories into a practical fat-loss target.
Open calculator →
Macro Calculator
ToolSplit calories into protein, carbs, and fat with simple presets.
Open calculator →
Protein Intake Calculator
ToolEstimate a practical daily protein target from body weight and goal.
Open calculator →
How to use the site
A simple 3-step path for beginners
The goal is to help you move through the numbers in a logical order instead of jumping around.
Start with maintenance
Use TDEE or Maintenance Calories first so the rest of the numbers have a sensible base.
Set the goal
Move into calorie deficit, macros, protein, hydration, or timeline tools depending on what you need next.
Adjust from real life
Use the calculators as planning estimates, then refine using your actual progress over time.
Next best step
Open the calculators hub
Browse the full calculator library and choose the next tool that matches your goal, whether that is fat loss, maintenance, protein, BMI, hydration, or timeline planning.