eSIM data usage calculator
Not sure how much data your trip needs? Pick what you’ll do and how long you’ll travel, and we’ll estimate the right eSIM plan size for you — free, in your browser.
Data usage calculator
Estimate how many GB you need for your trip so you can pick the right eSIM plan.
Recommended data
~5 GB
How much data do I need when I travel?
Picking a plan that’s too small means running out mid-trip; too large and you overpay. The amount you need depends on what you do online — maps and messaging sip data, while HD video streaming and video calls use far more — and how many days you’ll be away. The calculator above turns those habits into a quick GB estimate so you can choose with confidence.
Once you know your size, grab a RoamJet data eSIM for affordable, instant connectivity in 200+ countries, and add the RoamJet calling app to reach any phone worldwide.