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Travel data calculator

Quick answer: Enter your trip length and how many hours a day you use maps, social media, music and video. It adds the usage up and suggests a round number of GB. The figures are rough rules of thumb, so add a safety margin.

Days away

Hours per day on each (use your own guess):

Maps and navigation

Social media and browsing

Music or podcasts streaming

Video streaming (standard quality)

Video calls

Hotspot for a laptop or someone else (hours)

Rough rules of thumb used: maps 10 MB an hour, social and browsing 150 MB, music 70 MB, standard-quality video 700 MB, video calls 450 MB, hotspot browsing 300 MB. Real figures vary a lot by app and settings.

How to use the data calculator

Estimate the hours you spend on each activity on a normal day away, then read the total. If you will use hotspot for a laptop, add those hours too. The calculator adds a 25% margin, because running out of data abroad is more annoying than paying for a little extra. See how much data you need abroad for what each activity uses, and eSIM vs roaming vs a local SIM to choose how to buy it.

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Frequently asked questions

How accurate is the estimate?

It is a rough guide. Real usage varies by app, video quality and settings, so the result includes no promise. Round up if you cannot top up easily.

Is anything I enter saved?

No. It is calculated in your browser and nothing is sent anywhere.