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.
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Roughly how long you'll use each activity per day
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):
위 시간당 수치는 실측값이 아니라 일반적인 파일 크기를 환산한 것입니다. 같은 앱도 화질 설정이나 백그라운드 업데이트에 따라 사용량이 크게 달라지므로 대략적인 참고용으로 봐 주세요. 같은 사용량에 “일일 정량”과 “총량형” 두 가지 요금제가 있는 이유와 나에게 맞는 선택은 다음을 참조하세요 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。