Screen Time Calculator
Calculate hours per day, week, month, and year spent on phones, computers, TV, and other screens.
How Much Screen Time Is Too Much?
Screen time includes any time spent looking at a phone, tablet, computer, television, or gaming device. The American Academy of Pediatrics recommends no screen time for children under 18 months (except video calls), 1 hour per day for ages 2–5, and consistent limits for ages 6 and older. For adults, there is no official maximum, but research links more than 6–8 hours of daily recreational screen use to higher rates of anxiety, poor sleep, eye strain, and sedentary-related health issues.
Physical Effects of Extended Screen Use
Digital eye strain, which brings dry eyes, blurred vision, and headaches, tends to set in after 2 or more continuous hours of screen use. The 20-20-20 rule helps: every 20 minutes, look at something 20 feet away for 20 seconds. Prolonged sitting during screen use contributes to back pain, poor posture, and increased cardiovascular risk.
Screen Time Limits by Age
The American Academy of Pediatrics sets clear guidance for children. Adults have no official cap, but the research points to a threshold where recreational use starts to correlate with harm.
| Age Group | Recommended Limit |
|---|---|
| Under 18 months | None, except live video calls |
| 2 to 5 years | 1 hour per day of high-quality content |
| 6 years and older | Consistent limits, no set number |
| Adults | No official cap; over 6 to 8 hours recreational use links to worse outcomes |
The number matters less than what it replaces. Screen time that cuts into sleep, physical activity, or in-person time is the problem, not the minutes themselves. The 20-20-20 rule handles eye strain: every 20 minutes, look at something 20 feet away for 20 seconds.
Blue Light and Sleep
Blue light from screens suppresses melatonin and can delay sleep onset by 30 to 60 minutes when devices are used within an hour of bedtime. The fix is not an app or a filter; it is putting the screen down. Keep phones out of the bedroom and stop scrolling an hour before sleep, and the melatonin delay mostly disappears.
Calculating Your Daily Screen Time
Most smartphones and computers track screen time automatically. Check Settings on iOS or Digital Wellbeing on Android for a breakdown by app. This calculator helps you set a daily target and see how your current usage compares to recommendations for your age group. Many people are surprised to find their actual screen time is 2 to 3 hours more than they estimated. Checking your device stats is often the first real step toward healthier habits.
Frequently asked questions
How much screen time is recommended for children?
Does screen time affect sleep?
What is the 20-20-20 rule?
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Does screen time cause anxiety?
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