Screen Time
Calculator.
See exactly how many years of your life you'll spend on your phone — then start reclaiming them.
- Avg / day
- 6h 40m
- Lifetime
- 21 yrs
- Reclaim
- 2.5 yrs
You, your life is
960months
Each dot is 1 month. 960 months in 80 years.
Why your screen time matters.
The average adult checks their phone over 150 times per day and spends nearly 7 hours on screens. Most of us drastically underestimate it. When you see the numbers laid out across a lifetime, the reality becomes impossible to ignore — that is what this calculator is for.
By entering your age and daily average, you get a precise, personal picture: how many hours per week, how many days per year, how many years of your remaining life are spent looking at a glass rectangle.
The dot-grid visualisation goes further. It maps your entire life in months, colour-coded by how that time is actually allocated between screen time, sleep, work and genuine free time. For most people, the amount of truly free time left is shockingly small.
Awareness is the first lever. Once you can see the numbers, you can decide which screen time is worth it — and which is not. From there, building the replacement habit is what changes the trajectory.
Reclaim those years with BaseRebuild.
BaseRebuild is the all-in-one life operating system. One app for habits, focus, fitness, fasting, nutrition, money and AI coaching — so the time you cut from your phone goes somewhere that actually changes your life.
Habit tracker
Build the routines that replace the scroll — with streaks, reminders, and a 365-day grid.
Pomodoro focus
Custom durations, focus / break cycles, daily focus record. The opposite of phone time.
Fitness & fasting
Intermittent fasting timer, calorie + macro rings, water tracker. Move your body.
Personal finance
Net worth, transactions, budgets and an honest savings rate. Money that actually grows.
Subscription tracker
Catch the silent monthly burn. See every renewal and stop paying for things you forgot.
Weekly AI coach
Every 7 days, the AI reads your data and tells you exactly what to focus on next week.
Questions, answered.
Quick answers about how the screen time calculator works and what to do with the result.
- We multiply your daily screen time by the number of days remaining in your life, based on an average life expectancy of 80 years. The result is broken down into weekly, monthly, yearly and lifetime totals so you can see exactly where the time goes.
- Each dot represents one month of your life. The average human lives about 960 months (80 years). The grid color-codes how those months are spent: screen time, sleep, work and remaining free time — so the cost of your phone use becomes visible at a glance.
- The global average is approximately 6 hours 40 minutes per day across all devices. This varies by country and age group, but over a lifetime it adds up to roughly 21 years staring at screens — about a quarter of an entire life.
- Track your usage honestly first. Then set daily app limits, remove non-essential apps from your home screen, disable notifications, switch your phone to grayscale, and create phone-free zones (bedroom, dining table, the first hour after waking). Even cutting 1 hour a day reclaims more than 2 years of your life.
- Not at all. Intentional use — learning, creating, calling someone you love — is very different from passive scrolling. The goal of this calculator is awareness and control, not elimination. Once you can see the numbers, you can decide which screen time is worth it.
- It uses your actual daily average, an average life expectancy of 80 years, plus standard estimates of 8 hours sleep and 8 hours work or obligation per remaining day. The screen-time number is exact for your input — the surrounding life buckets are conservative averages, so most peoples real free time is even lower than the dot grid shows.
- Yes. Once you see your number, you can sign up free and use the BaseRebuild habit tracker, pomodoro focus timer, intermittent fasting tracker, nutrition log, finance tools and AI weekly coach to redirect that time into things you actually care about. Free forever, no credit card.
- No. The calculator runs entirely in your browser. We never store your age or screen-time number on a server, and there is no signup required to use it.