Data Usage Calculator
Enter your daily hours for streaming, music, video calls and ordinary browsing, and pick your streaming quality. The calculator converts honest per-hour figures into GB per day and per month — the number to compare against your plan cap.
Plan-checker tools ask what apps you use and never show the maths. This one prices the lever that actually matters: one hour of 4K costs the same as ten hours of SD, so quality choice moves your bill more than any usage habit.
How to use
- Pick your usual streaming quality — SD 0.7, HD 3, 4K about 7 GB per hour.
- Enter honest average daily hours for each category, weekend-heavy users should include weekends in the average.
- Compare the monthly figure with your plan cap, keeping 5-10 GB aside for OS updates and background sync.
Frequently asked questions
How much data does Netflix use per hour?
About 0.7 GB in SD, 3 GB in HD and 7 GB in 4K. Auto quality quietly picks the highest your line allows — setting Data Saver per profile is the single biggest GB/month cut available.
How much data do video calls use?
Roughly 1.2 GB per hour in HD group calls, half that one-to-one. Turning your own camera off barely saves data — you still download everyone else's video.
Is 100 GB a month a lot?
For one person it is comfortable: about an hour of HD streaming plus music and browsing daily. It collapses with a 4K household — two hours of 4K a day alone burns 420 GB a month.
What eats data that people forget?
Cloud photo backups, OS updates and game downloads arrive in multi-GB spikes. If your monthly figure looks impossible from streaming alone, check what the phone uploads overnight before blaming the TV.