What is your scroll actually costing you?
Every hour you scroll is a workout you didn't do. See the trade.
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2,190
workouts foregone this year
Over your remaining life that's about 109,500 workouts you'll never do — roughly 9.4 years of scrolling.
306,600
Calories not burned
brisk walk, ~280 kcal/hr
208.5
Books unread
238 wpm, 300pg books
45.6
Days of your year
given to scrolling
4,380
Skill lessons skipped
15-min lesson units
Cut it by 1 hour a day and reclaim 730 workouts a year.
HabitUnlock makes the scroll cost the workout — earn your screen time.
Frequently asked questions
How many workouts does scrolling cost me?
Enter how many hours a day you spend scrolling and the calculator converts that time into workouts foregone, using your typical workout length (default 30 minutes). At 3 hours a day, that's about 2,190 workouts a year.
What data does the Scroll-Time calculator use?
The calculator uses published averages: 280 kcal/hour for a brisk-walk-equivalent workout, a 238-words-per-minute adult reading speed for the "books unread" estimate, and an 80-year US life expectancy for the lifetime projection. Every figure is labeled with its basis on the page — nothing is personalized to your fitness level or reading speed.
Does scrolling really cost that many workouts?
Yes. At the default 3 hours a day, HabitUnlock's calculator estimates about 2,190 workouts foregone a year and roughly 306,600 calories not burned annually — figures that scale with however many hours you enter.
Is the Scroll-Time calculator free?
Yes. It's a free, client-side calculator with no signup, no account, and no email required. Your numbers never leave your device except when you choose to share a result.
Is my data private?
Yes. All calculations run in your browser. Nothing is sent to a server, no personal information is collected, and there is no login. Your last inputs are optionally saved to your own browser's local storage so the page remembers them on your next visit.