FeedCutter Calculator

Screen time reality check.

Not hours per day. Not minutes per session. How many years of your waking life does your current screen time habit cost you — and what share of your free time is already spoken for?

The average US adult spends 4–5 hours per day on their phone. At 4 hours/day from age 30, that's 48,180 hours — or roughly 8.5 years of waking life — before age 78. It also accounts for 50% of every hour of free time you have after sleep and work.

4.0

Check Settings → Screen Time (iOS) or Digital Wellbeing (Android) for your real number.

Used for the lifetime projection (assumes life expectancy 78).

Used to calculate your phone's share of your actual free time.

Screen time / year

1,460 hrs

60.8 full 24-hour days

Lifetime total

8.5 waking years

At current rate, from your age to 78

Share of free time

50%

of your daily hours after sleep and work

In context

Sleep: 33% of your day Work/school: 33% of your day Screens: 17% of your day

What half of that time could give you per year

  • Read 73 books (10 hrs each)
  • Have 365 meaningful 1-hr conversations
  • Log 73% toward mastering a new skill (1,000 hrs)
  • Complete 365 one-hour workouts

Share

Your shareable result

FeedCutter Screen Time Reality Check

My screen time costs me

8.5 waking years

4 hrs/day · 60.8 days/year · 50% of my free time

That's 1,460 hours per year from age 30.

feedcutter.xyz/calculators/screen-time

Post on X

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If the number surprised you

Total screen time is dominated by algorithmic feeds — the parts of apps specifically engineered to extend your session. Removing those surfaces cuts the number without requiring willpower.

  1. Step 1 — Remove the feeds

    Unhook · News Feed Eradicator

    Remove YouTube's home feed, Facebook's timeline, Reddit's front page. Keep search, subscriptions, and messages. Free, 2 minutes.

  2. Step 2 — Add friction

    One Sec · Opal · Freedom

    Add a pause before apps open (One Sec) or block them entirely during focus hours (Opal, Freedom). Breaks the reflexive open habit.

  3. Step 3 — Understand why

    What is persuasive technology?

    The design science behind why the apps are hard to put down — and why the fix is environmental, not motivational.

FAQ

Frequently asked questions

Common questions — click any to expand.

The calculator assumes 8 hours of sleep and 8 hours of work/school per day, leaving 8 hours of "free time." Your screen time is then expressed as a percentage of those 8 hours. Adjust in your head if your schedule differs — the point is to see your phone's share of the hours that are actually yours.

Method & sources

  • Average US daily phone use: DataReportal 2024 Digital Global Overview (4h 37m), Statista/Pew 2024 survey data (3h 46m–5h 30m range). Default set to 4 hours as a conservative midpoint.
  • Free time baseline: 24 hours minus 8 hours sleep minus user-specified work/school hours.
  • Lifetime projection: assumes life expectancy of 78 and current habit held constant from current age.
  • Waking hours: 16 per day (24 minus 8 sleep).
  • This calculator runs entirely in your browser. Inputs are not stored or transmitted.

Last verified: .