Free Tools
Simple calculators for focus, habits, and discipline. No sign-up, no fluff, just numbers you can use.
These tools were built by Serge using established research and public sources. My work focuses on the practical side of focus, habits, and discipline. These tools are for educational purposes and give practical guidance, not professional advice.
Reading about habits and focus only goes so far. These calculators put a number on what you are actually doing, so you can see where you stand and what to adjust. Pick the one that matches what you are working on right now.
Tiny Habit Compound Growth Calculator
See what a small daily improvement adds up to over weeks and months.
Habit Streak & Recovery Simulator
Check your consistency score and how fast you can rebuild after a missed day.
Focus Loss & Distraction Cost Calculator
Find out how many hours interruptions really cost you each week.
Daily Time-Audit Calculator
Log your hours by category and see where your day actually goes.
Consistency vs. Intensity Scorecard
See if your habits run on steady effort or motivation bursts.
Habit Formation Timeline Calculator
Get a realistic estimate of when a new habit starts to feel automatic.
These tools give general educational information. They do not replace personal or professional advice.