Intermittent Fasting Calculator: Leangains Protocol

An Ultimate Calculator for an Ultimate Lifestyle.

if calculator damnripped

The IF calculator is first Intermittent Fasting calculator of its kind. You will never find a fasting calculator so sophisticated in the whole wide web especially one dedicated solely for The Leangains Protocol. We developed the IF calculator to be the most accurate and easy to use fasting calculator for people following Intermittent Fasting for fat loss or muscle building. Hell, even Martin Berkhan will be amazed.

So what are you waiting for? Go on, give it a try!

Note: We have updated our IF calculator to include the leangains macro split chart. You can find the beta version below. Please don’t be alarmed by the beta tag, it is just as accurate as its predecessor. Only thing is that, this will be going through some updates every now and then until we are satisfied with its performance. If you happen to encounter any bugs or if you have any suggestions, please let us know in the comments section. Thanks.

*If you would still like to use the old IF calculator, please click the next button at the end of the page.


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MattDamn RippedAshswiftAimee Reyes Recent comment authors

This is an excellent calculator page, thanks for putting in the work DR


This is amazing! Thank you.

How does the body comp work. Is the expectation, I will lose fat and replace the weight with muscle? It would be helpful if there were descriptions for each of the rest / workout split options.


so, i’m on IF for a month now lost around 7kgs but i could never eat all my TDEE, im always short on protein, knowing that i don’t excercise as i work until 6 then i gotta go home play with my 2 kids…should i just take protein supplemnt?i only eat 2 meals, i dont feel hungry after 5pm which is my cutoff time

Aimee Reyes
Aimee Reyes

If bcaa spikes insulin, why would you want to drink it outside of your eating time frame?


How should calories be divided between the meals on rest days? Evenly? Or using the same percentages as for the workout days (e.g., 60%, 20%, 20%)?

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