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Screen time calculator

See how much your daily screen time adds up to over a week and a year.

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Enter Hours per day and the Screen time calculator works out Per week (hours), Per year (hours), Per year (full days) straight away. For instance, with Hours per day = 4 it returns Per week (hours) = 28, Per year (hours) = 1,460 and Per year (full days) = 60.833.

How to use it

  1. Enter your values: Hours per day.
  2. Read the result instantly: Per week (hours), Per year (hours), Per year (full days).

Frequently asked questions

What does the Screen time calculator actually compute?

It takes Hours per day and derives Per week (hours), Per year (hours) and Per year (full days) from them. The calculation is live as you type, so the result updates on every change.

What information do I need to provide?

A single value: Hours per day. Nothing else is required — no account, no file upload.

Can you show a worked example?

With Hours per day = 4, the calculator returns Per week (hours) = 28, Per year (hours) = 1,460 and Per year (full days) = 60.833. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

What happens if I enter larger values?

It moves a lot. Using Hours per day = 8 instead, Per week (hours) goes from 28 to 56 — which is why it is worth testing a few scenarios rather than trusting a single figure.

What does it give for smaller values?

Scaled down to Hours per day = 2, Per week (hours) comes out at 14. The relationship is worth checking at both ends before you rely on a single result.

When would I actually use this?

Answering a scheduling question exactly: how many working days until a deadline, what date falls sixty days out, and what time that is for a colleague elsewhere.

What is the most common mistake?

Counting days by subtracting dates and forgetting whether the endpoints are included. Inclusive and exclusive counts differ by one, which is the difference between meeting a deadline and missing it.

What is the difference between the Screen time calculator and the Time duration calculator?

This one returns Per week (hours) and Per year (hours); the Time duration calculator returns Hours and Minutes. That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

Flight Time Calculator is the closest one after this: Estimate flight duration from route distance and cruise speed, with taxi/climb/descent overhead.

What else is worth having open alongside it?

Daily Time Savings Calculator and Email Reply Time Calculator — they come up in the same task often enough to be worth a second tab.

Further reading

All guides →
ExplainerFour Hours a Day of Screen Is Sixty-One Days a YearFour hours a day is 28 a week and 1,460 a year — 60.8 full days. Three hours is 45.6 days and seven is 106.5. The conversion is arithmetic; what it means is not.ExplainerReading and Writing Military Time0800 is not “eight o'clock” and not “08:00” — it is “zero eight hundred”, with a zone letter on the end. The four digits, the spoken form, midnight at 0000, the argument about 2400, and the reason 12-hour notation cannot settle noon.ExplainerThe Same 1,200 Words Run from Seven Minutes to ElevenDelivery speed decides a talk's length more than the script does. At 170 words a minute the same text takes 7 min 04 s; at 110 it takes 10 min 55 s — and only one of those fits a ten-minute slot.ExplainerEight Pages or Three, and the Word Count Did Not Change2,000 words is 8 pages double-spaced, 4 single-spaced and 3.3 in a dense report layout. "How many pages" is a question about the layout, not about the text — and the 250-word page has a history.GuideThe Pomodoro Method: How Long to Work and How Long to RestTwenty-five and five come from Francesco Cirillo's method, not from a trial. What the research actually measured is task switching and the cost of getting back in — and the reason a fixed interval helps is not that 25 minutes is optimal. Plus what the planner really returns, including the long break it quietly leaves out.ExplainerHow Daylight Saving Time Works: Spring Forward, Fall BackDaylight saving time shifts clocks an hour in spring and back in autumn. Learn spring-forward and fall-back, why one day is 23 hours and another 25, and how US and EU dates differ.