How much eSIM data do I need?

Add your usual phone use and what you plan to stream or call. We turn it into GB using Netflix, Spotify and Zoom’s own figures, then show the cheapest plan from each provider that covers your trip.

Destination

Trip length (days)

Your usual mobile data per month (GB)

Find it on iPhone in Settings › Mobile Data, or on Android in Settings › Network › Data usage. Leave blank if you only want the extras below.

Extra hours per day on mobile data

Video, standard (h/day)

Video, HD (h/day)

Video, data saver (h/day)

Music streaming (h/day)

Video calls (h/day)

Voice calls over data (h/day)

Safety margin (%)

Our suggestion, not a provider figure. Change it to suit you.

You need about

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Cheapest listed plan

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Where the GB go

Enter your trip to see the breakdown.

Plans that cover it

Going to Europe? If you’re visiting from outside the EU, check your Schengen stay limit on TravelRulesCheck →

Where the numbers come from

Netflix Save Data: about 6 hours per GB. Source: help.netflix.com/en/node/87
Netflix Automatic: about 4 hours per GB. Source: help.netflix.com/en/node/87
Netflix HD: up to 3 GB per hour. Source: help.netflix.com/en/node/87
Spotify Normal: about 96 kbit/s (0.043 GB per hour). Source: support.spotify.com/uk/article/audio-quality
Zoom 1:1 video: 600 kbps up + 600 kbps down (0.54 GB per hour). Source: support.zoom.com/hc/en/article
Zoom audio: 60–80 kbps; we use 80 kbps each way (0.072 GB per hour). Source: support.zoom.com/hc/en/article
Your own usage: your monthly figure ÷ 30 × trip days.
Plan prices: copied from each provider’s destination page, checked 22 Oct 2026 (US dollars as displayed). The cheapest plan shown lasts at least your trip length and has at least the GB you need, or is unlimited.

GB here means 1,000,000,000 bytes, as providers sell data. Real use varies with apps, settings and network. Background updates and photo backups can use a lot, so switch them to Wi-Fi only.