How Many GB Do You Need to Travel?
Pick a usage profile close to yours, or fine-tune each activity's daily hours — see an instant daily and trip-total estimate on the right, plus suggested plans for your destination.
Pick a usage profile
Roughly how long you'll use each activity per day
Oblíbené destinace
What Is Mobile Data Usage?
Mobile data usage is the traffic you use over the cellular network when not on Wi-Fi — every time you scroll Instagram, look up directions on Google Maps, or video call home, it counts against your data. You usually won't have Wi-Fi everywhere while travelling, so estimating beforehand and buying the right amount avoids running out mid-trip or overpaying for data you won't use.
How We Calculate It
Roughly how much data each type of activity uses per hour (industry-standard estimates):
Výše uvedené hodinové hodnoty nejsou naměřené z vašeho telefonu — jsou přepočtené z typických velikostí souborů. Stejná aplikace může spotřebovat velmi rozdílné množství podle nastavení kvality a aktualizace na pozadí, berte proto výsledek jako řádový odhad, ne jako prognózu vyúčtování. Proč se stejná spotřeba nabízí v tarifech „denní kvóta“ a „celkový objem“ — a který se hodí vám — viz Daily quota vs. total data。
These figures are estimated from typical file sizes — actual usage varies noticeably by app settings, video quality and background refresh. Treat them as order-of-magnitude guidance. The single most effective way to save data: download offline maps before you leave, and turn off autoplay in social apps.
Want to understand plan types better? See Daily quota vs. total data and What "unlimited" data really means。