Glycogen Storage Estimator
Your body's onboard carb tank — muscle and liver stores in grams, kcal and training-hours.
A typical trained adult stores 400–600 g of glycogen (~1,600–2,400 kcal) — conveniently close to marathon energy, which is why 'the wall' lives near 30 km. Each gram binds ~3 g of water: the 1–2 kg swing when starting or ending low-carb eating is the tank draining or refilling, not fat.
Formula
For general information only — not medical or training advice. Estimates vary between individuals; consult a qualified professional before changing your exercise or nutrition routine.
Your body's onboard carb tank — muscle and liver stores in grams, kcal and training-hours. The Glycogen Storage Estimator is a free, private glycogen storage tool — every result computes instantly in your browser with no sign-up and no data upload.
About Glycogen Storage Estimator
A typical trained adult stores 400–600 g of glycogen (~1,600–2,400 kcal) — conveniently close to marathon energy, which is why 'the wall' lives near 30 km. It applies muscle ≈ 15 g/kg muscle (×0.5–1.5 by state) + liver ~100 g. Use the Glycogen Storage Estimator to get an instant, clearly-explained result with the working shown step by step — free, private and with the source method cited.
How to use Glycogen Storage Estimator
- 1Enter your details in the Glycogen Storage Estimator input fields above.
- 2The result updates instantly with the working and reference bands shown.
- 3Adjust any value to explore how it changes the outcome — it's free and unlimited.
Why use Glycogen Storage Estimator?
- ✓Instant glycogen storage result that recomputes as you type — no waiting, no page reloads
- ✓100% client-side: your health data never leaves your browser
- ✓Shows the actual formula and your numbers substituted in, so you can see exactly how the result is reached
- ✓Based on published, citable sources (Bergström J & Hultman E, Nature 1966 — glycogen supercompensation)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the Glycogen Storage Estimator work?+
A typical trained adult stores 400–600 g of glycogen (~1,600–2,400 kcal) — conveniently close to marathon energy, which is why 'the wall' lives near 30 km. The calculation uses the formula: muscle ≈ 15 g/kg muscle (×0.5–1.5 by state) + liver ~100 g. Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the Glycogen Storage Estimator accurate, and what is it based on?+
The method is traceable to authoritative sources, including Bergström J & Hultman E, Nature 1966 — glycogen supercompensation; Areta JL & Hopkins WG, Sports Med 2018 — muscle glycogen content. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the Glycogen Storage Estimator free and private?+
Yes. It's completely free with no sign-up, and all computation happens locally in your browser, so none of your health data ever leaves your device.
Can I use this for medical decisions?+
This tool is for general fitness information only, not medical or training advice. Consult a professional before changing your routine.
What can I use the Glycogen Storage Estimator for?+
It's commonly used for glycogen storage, muscle glycogen, how much glycogen. Your body's onboard carb tank — muscle and liver stores in grams, kcal and training-hours.
Related Health tools
Adult BMI Calculator (WHO)
Body-mass index for adults with the WHO reference bands shown neutrally, plus the substituted formula step by step.
● LiveBMI Calculator (lb & inches)
US-style BMI from pounds and inches using the ×703 conversion, with CDC adult reference ranges.
● LiveBMI Calculator for Women
BMI with reference context written for women — what the index can and cannot say about female body composition.
● Live