GKI Calculator: Glucose Ketone Index Tool with Free Tracking PDF
Tired of guessing what your bodyโs running on? Use this calculator to find out instantly if youโre in fat-burning mode or still stuck on sugar.

Let’s Figure Out Your Score
Your GKI Result
Your GKI is: —
Alright so most folks just kinda guess where their energy’s coming from. You feel tired or wired or whatever and maybe you’re eating clean but like, is your body actually burning fat or just coasting on sugar still? That’s where the glucose ketone index (GKI) comes in.
What Is GKI and Why Should You Care?
It’s not just numbers for the sake of numbers. Glucose is one thing, ketones are another. But alone, they’re just pieces. Like hearing two different voices and not knowing they’re in the same conversation. The glucose ketone index pulls it together. Shows you the fuel plan your body’s actually using. That’s your real metabolic health signal right there.
Most people check glucose and stop. Or ketones maybe if they’re into keto. But they’re looking at single words not full sentences. You want the full picture? GKI is it.
How Our Calculator Makes Tracking Simple
That’s why we created this GKI calculator. To just make it simple. You plug in your glucose, drop your ketones in, hit the button. That’s it. You get a number that actually tells you something meaningful about your metabolism.
And yeah it matters. Especially if you’re fasting or doing intermittent fasting, following a low-carb or ketogenic diet, trying to tap into fat-burning mode, or looking to improve your metabolic health. Your GKI tells you if you’re really in ketosis or just almost there. It shows what direction things are heading. If your system’s still leaning on sugar or if you’ve made the switch to fat burning.
It’s not magic, just basic inputs giving you actual feedback. And this calculator skips all the annoying math so you can just check it and move on.
Keep Tabs on Your GKI Journey:
We made a free PDF log โ it’s pretty useful for keeping track of your GKI readings day by day.
Learn More About GKI:
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