Kids Screen Time Calculator

How Screen Time Guidelines Are Calculated

Screen time recommendations are based on developmental research from the American Academy of Pediatrics (AAP) and WHO, adjusted for the child’s age and type of content.

Recommended Maximum Daily Screen Time:

These are the exact figures the calculator uses.

The teenage figure is the softest of these. The AAP stopped publishing a fixed number for over-13s some years ago and moved to a family media plan instead, on the reasoning that a 16-year-old editing video for three hours and a 16-year-old scrolling for three hours are not the same activity. Two hours is a workable default, not a rule.

Remaining Free Time Formula: Healthy Screen Time = Total Waking Hours − Sleep − School − Physical Activity − Social Time

Worked Example, an 8-year-old on a weekend day:

• Waking hours: 14 hours
• School (weekend): 0 hours
• Physical activity (recommended 60 min/day): 1 hour
• Meals and hygiene: 1.5 hours
• Family and social: 2 hours
• Remaining: 9.5 hours, of which no more than 1.5 hours should be recreational screens

Nine and a half unstructured hours against ninety minutes of screen is the part parents find hard, and it is the actual point of the guideline. The limit only works if something fills the rest.

Quality Factors Matter:

• Interactive, educational content (coding, reading apps): less concerning
• Passive consumption (YouTube shorts, social media): more harmful per minute
• Co-viewing with discussion reduces negative effects significantly

Physical Warning Signs of Excess Screen Time: eye strain, headaches, poor sleep, reduced outdoor time, irritability when screen removed.

Working out your own instead? There is no published limit for adults, so the screen time calculator does a different job: it weights your daily hours by how hard each device makes your eyes work, a phone at 14 inches counting for nearly four times a television across the room, and turns the total into hours a year. Useful for a parent setting an example, and a reminder that the household total is usually the adult’s.