Precision Keto Calculator

Scientific macro tracking designed for Ketosis.

Lose Fast Maintain Gain

Your Daily Macro Targets

0 Kcal

Fat (70-75%)

0 Grams

Protein (20-25%)

0 Grams

Carbs (5%)

0 Net Grams

Based on your inputs, this plan puts you in a deficit.

Why This Keto Calculator Works

Ranking as the most user-friendly tool on the web, this calculator uses the Mifflin-St Jeor equation (the gold standard for accuracy) combined with Katch-McArdle logic if body fat is provided. Unlike generic calculators, we prioritize protein to protect muscle mass while ensuring your fat intake keeps you satiated.

Understanding Your Results

  • Net Carbs: Kept low (usually 20g) to force your body into Ketosis, where it burns fat for fuel instead of sugar.
  • Protein: Calculated based on your lean body mass and activity level. It is a goal to hit, not a limit.
  • Fat: This is a lever. If you want to lose weight faster, eat less fat. The calculator sets a limit, not a goal you must force yourself to reach.

How to Use

1. Select Activity Accurately: Be honest! “Sedentary” is best for office workers.

2. Set Your Deficit: A 20% deficit is the “sweet spot” for sustainable weight loss without crashing your metabolism.

3. Track: Use these numbers in a tracking app. Recalculate every 10 lbs lost.

Practical Calculators