Daily Screen Time Calculator
Screen time hides in plain sight: a few minutes here, an episode there. This calculator brings it into focus. Enter the hours per day you spend on your phone, television, computer, and gaming, plus how many hours you sleep. It adds your screens into a daily total, scales that to weekly and yearly figures, and shows the share of your waking day that screens occupy. The yearly number is often a wake-up call. Every input is yours, so the totals reflect your real habits, not an assumption.
Screen time formula
Daily total = phone + television + computer + gaming
Weekly total = daily total * 7
Yearly total = daily total * 365
Waking hours = 24 - sleep
Share of waking hours = daily total / waking hours * 100
If you multitask across screens, counting each one shows total exposure; counting only the primary screen shows distinct attention.
Using the result
- The yearly total often surprises people; use it to set realistic goals.
- Balance screens with sleep, movement, and in-person time.
- Children have specific public-health guidance; this tool is general-purpose.
- Keep screens out of the bedroom to protect sleep quality.
- Re-run with target hours to see how much yearly time you would reclaim.
Screen time: frequently asked questions
How does the screen time calculator work?
Enter the hours per day you spend on each type of screen: phone, television, computer, and gaming. The calculator adds them into a daily total, then scales to weekly (times 7) and yearly (times 365) figures, and shows what share of your waking hours screens take up.
How is the waking-hours share calculated?
It divides your total daily screen hours by your waking hours (24 minus the hours you sleep) and multiplies by 100. If you sleep 8 hours, you have 16 waking hours, so 8 hours of screens would be 50 percent of your waking day.
Is there a recommended screen time limit?
There is no single official limit for adults. Public health bodies emphasize balancing screen use with sleep, physical activity, and offline time, and offer specific guidance for children. Use the totals here to compare against your own goals.
Does multitasking double-count screens?
If you watch TV while using your phone, counting both will overstate distinct screen time but reflect total exposure. Decide whether you want exposure (count both) or distinct attention (count the primary screen) and enter hours accordingly.
How can I reduce my screen time?
Seeing the yearly total often motivates change. Set app limits, schedule screen-free periods, keep screens out of the bedroom, and replace some screen time with movement or in-person activity. Re-run the calculator with your target hours to see the yearly difference.
Official sources
- Centers for Disease Control and Prevention: Physical activity and screen time.
- U.S. Department of Health and Human Services: Physical Activity Guidelines.
Reviewed by the CalculatorHub team, edited by James Graham, 17 June 2026. See our methodology.