Roaming data budget

Calculate how much travel data you actually need.

Model daily activities instead of guessing a plan size. The estimate includes a configurable safety buffer and explains the biggest sources of mobile data use.

No sign-upRuns in your browseriPhone focused
Network utilityTravel Data & Roaming Calculator
Cell Tower Locator
Continue on iPhone

Use the plan abroad, then test the real mobile network around you.

Cell Tower Locator combines nearby tower context, connection details and a mobile speed test in one focused iOS utility.

Download on the App StoreApp Store

Video dominates most travel data budgets

Streaming resolution, social autoplay and video calls can consume far more data than navigation or messaging. Reducing video quality is the fastest way to extend a limited plan.

Offline preparation reduces risk

Download maps, tickets, translation packs and entertainment over Wi-Fi before departure. Disable cellular cloud backups and automatic app updates.

Keep a margin for disruption

Delays, hotspot use and failed hotel Wi-Fi can change the plan. A 20–30% buffer is usually more useful than buying exactly the calculated total.

Frequently asked questions

Is 5 GB enough for one week?

It can be enough for navigation, messaging and light social use, but regular video streaming or hotspot use can exceed it quickly.

Does Google Maps use a lot of data?

Navigation usually uses much less data than video, but downloading offline maps makes the route more resilient and reduces cellular use.

Does an unlimited travel eSIM always have unlimited speed?

Not necessarily. Providers may apply fair-use thresholds, hotspot limits, deprioritization or reduced speed after a stated allowance.