dukan calculator

What Is a Dukan Calculator?

A Dukan calculator is a planning tool that helps you turn a general weight-loss goal into a structured timeline. The Dukan approach is typically split into four phases: Attack, Cruise, Consolidation, and Stabilization. This calculator gives you a practical estimate for how long each stage may take based on your current weight, goal weight, and activity level.

Instead of guessing your timeline, you can start with a realistic framework and then adjust week by week. That’s often the difference between a plan that gets abandoned and one you can actually follow.

How This Calculator Works

1) Weight gap and BMI check

The calculator first determines how many kilograms you want to lose, then estimates your current and target BMI. This gives you a quick health-oriented context for your goal.

2) Estimated phase lengths

• Attack phase: Short, protein-focused kickstart (typically 2–7 days).
• Cruise phase: Main fat-loss period (estimated using a steady weekly loss rate).
• Consolidation phase: Recovery period to reduce rebound risk (10 days per kg lost).
• Stabilization phase: Long-term maintenance habits.

3) Daily protein and hydration guidance

To make your plan more practical, the tool also estimates a daily protein target based on body weight and activity level, plus a simple hydration baseline.

Understanding the Dukan Phases

Attack Phase

This is the shortest phase and usually the most restrictive. The purpose is to build momentum quickly. For many people, a brief attack period can improve motivation, but extending it unnecessarily may reduce adherence.

Cruise Phase

Cruise is where most of the fat loss happens. Progress is rarely perfectly linear, so plateaus are normal. The key is consistency: planned meals, enough protein, and manageable activity.

Consolidation Phase

This stage is often underestimated. As your body adapts to a lower weight, this period helps you transition from “dieting mode” into sustainable routines.

Stabilization Phase

Long-term success comes from repeatable behaviors, not short-term intensity. If your maintenance habits are solid, occasional fluctuations are easier to manage.

Tips to Get Better Results

• Choose a target weight that is challenging but realistic for your body and lifestyle.
• Track weekly averages, not just daily scale changes.
• Prioritize protein, fiber, hydration, and sleep quality.
• Use walking and resistance training to preserve lean mass while losing fat.
• Recalculate every 4–6 weeks as your weight changes.

Important Notes

Any aggressive diet strategy should be adapted for your health history, medications, and training load. If you have chronic conditions, are pregnant, breastfeeding, or under active clinical treatment, consult a licensed professional before following a high-protein protocol.

Think of this Dukan calculator as a planning assistant: useful for structure, but not a substitute for individualized medical care.