How Much Data Does It Actually Use?
Data caps never really went away — home plans commonly cap around 1.2 TB, hotspot and travel plans at 10–50 GB, and every app answers "how much will this use?" with a shrug. These guides answer it properly: the official per-hour figures from each service's own documentation, what independent measurements actually find (often above the official "up to" ceilings), and the one conversion that makes any of it checkable — GB per hour ≈ bitrate in Mbps × 0.45. Every guide ships with per-episode, per-hour and per-month tables plus a live calculator that turns your real habits into a monthly GB figure against your cap. Speed and capacity are different questions: for "is my connection fast enough," see the internet speed verdicts; for "how much speed do my activities need right now," the bandwidth calculator; and for "how long will this file take," the download time calculator. This section answers the third question your ISP bills you for: volume.
Plans & Allowances
How Long Does 10GB of Data Last? (And 1–100 GB Plans)
~4 hours of HD video, a week of typical mixed use, or a month of light browsing — with a live allocator that turns your real daily mix into days-remaining, and a straight verdict for every plan from 1 to 100 GB.
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Streaming
How Much Data Does YouTube Use? Real Numbers by Quality
YouTube publishes no data table — so we derive one openly from its own speed specs: ~0.3 GB/hour at 360p to 9–16 GB in 4K. With the Shorts estimate, the creator/upload side, and a phone-plan survival calculator.
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Streaming
How Much Data Does Netflix Use? Real Per-Hour Numbers
From 0.3 GB per hour on Low to 7 GB in 4K — the official ceilings, what independent tests actually measure, per-episode and per-month tables, and a live calculator for your data cap.
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Coming next in this section
Spotify and music streaming · Zoom calls · online gaming (play traffic vs patch days) · Twitch. Each guide holds the same standard: official figures cited, independent measurements compared, math shown, and a calculator for your own numbers.