Peak Week Calculator
Calculate your 7-day peaking strategy based on stats. Remember, there are many different approaches to peak week protocols, use this as a baseline to tweak and adjust to dial in the result.
Men and women naturally carry different levels of essential body fat. We use this to accurately calculate your active Lean Body Mass (LBM).
Peak week is about filling the container. Your total weight provides the foundational multipliers for your glycogen, hydration, and electrolyte capacity.
While acute peak week loading relies entirely on tissue volume, your height is collected to provide complete context of your physique profile for future coaching adjustments.
Body fat cannot store glycogen or water. We use this to scale down your macro targets so you don’t over-consume and “spill over” (blur definition with excess water).
Important Safety Warning
I built this calculator to keep you away from the dangerous, extreme depletion tactics of the past. However, any peak week protocol places stress on your system. Keep these non-negotiables in mind:
- Zero Diuretics: Stay away from prescription or harsh water pills. They are incredibly dangerous and will get you disqualified in most federations.
- Medical Clearance: If you have any underlying health issues, do not run this protocol without your doctor’s green light.
- Know the Red Flags: Be hyper-aware of your hydration status. Extreme dizziness, throbbing headaches, muscle cramps, or unquenchable thirst mean you’ve pushed too far.
- Listen to Your Body: If you feel genuinely sick, rehydrate immediately and back off the plan.
- Long-Term Vision: Your health always comes first. No trophy or placing is worth risking your life or well-being.
The Reality Check
Peak week is not magic, and it will not burn fat.
It is a 7-day manipulation of glycogen, water, and intracellular minerals designed to pull subcutaneous fluid (water under your skin) and drive it deep into the muscle belly. It is the final coat of paint. It takes a 9/10 physique and makes it a 10/10. It will not take a 6/10 physique and make it an 8/10.
The Trap
The single biggest mistake people make is trying to run a peak week protocol when they are still too fat.
If you do not have deep, visible muscle separation before Day 7, this protocol will backfire. Carb loading when you have excess body fat will just make you look soft and bloated. The second trap is panicking. Competitors routinely cut water days too early because they feel “heavy,” resulting in a flat, stringy physique on stage.
How to Execute This Protocol
Do not cherry-pick the data from this calculator. To get the dry, full look, you must execute every variable simultaneously:
- Trust the Flush: The severe dry-out on Day 1 only works if you successfully trick your body’s hormones by aggressively overloading water and sodium earlier in the week. Do not skip the heavy loading phase.
- Drop the Ego: Heavy lifting causes muscle damage and inflammation. Inflammation holds water. Follow the exact training parameters listed for each day. You are just moving glycogen, not building muscle.
- Monitor the Mirror, Not the Scale: Your body weight will fluctuate wildly as you manipulate carbs and water. Put the scale away. You make adjustments based on how full or flat you look in the mirror.
Eliminate the Guesswork
This calculator gives you the exact biological mathematics of a perfect peak week. But a calculator cannot look at your physique on Day 3 and tell you if you need an extra 50g of carbs or if you are starting to spill over.
Peak week requires real-time, objective adjustments. If you want to stop guessing and have an expert dial in your exact protocol so you step on stage looking full, dry, and vascular, apply for coaching below.