How much data does Google Maps use? Work out your travel budget

Downloading an area, searching for restaurants and following directions are different tasks. A large download made at home uses your home connection. The same download made through a travel eSIM uses that plan’s allowance. Looking at phone storage tells you how much space an app occupies, not how much mobile data it has used on this trip.

Keep the question narrow: how much mobile data does your use of Maps consume? A phone’s total includes messages, browser tabs, photo uploads and other activity. It is easy to blame the map because it was on screen while another app was busy in the background.

Google says downloaded driving routes must fit inside the saved area. Offline transit, walking and cycling directions are unavailable, and offline driving lacks live traffic and alternative routes. Some areas cannot be downloaded. Check your destination before assuming the download button will solve everything.

For a city trip built around trains and walking, keep enough mobile data for live transport searches and changes. For a driving trip, save the complete route area on Wi-Fi and check that it opens before leaving. Our offline maps and eSIM guide covers that preparation in more detail.

1. Open your phone’s per-app mobile-data counter and record the Maps figure and time period. On iPhone, look under Mobile Data or Cellular. On Pixel, use Network & internet, SIMs, then App data usage. Other Android menus vary.
2. During an ordinary trip at home, use Maps the way you expect to overseas. Note whether you are driving, checking public transport or searching places, and whether the area was downloaded earlier. Only test while safely stopped or as a passenger.
3. Compare the app counter afterwards. Subtract the starting figure and divide by the hours observed. A short check is a planning sample, not a guarantee for every destination.
4. Repeat after a representative travel day. If your actual use differs, adjust the remaining budget before the allowance becomes tight.

Apple and Google both caution that phone counters can differ from carrier accounting. Use the counter to understand habits and the plan’s usage information to check the remaining allowance. There is no need to reset the whole phone or delete your eSIM.

The rows below show how three different measured results would add up over a trip. They are examples, not rates promised by Google or The SIM Shop. Use your own measured result in the first column when you have one. The calculation uses 1GB = 1,000MB.

A 0.56GB Maps estimate does not make a 1GB travel plan a safe automatic choice. That would leave 0.44GB for everything else, including messages, transport bookings and an unexpected download. Add those jobs before comparing plans, and leave a buffer that reflects how much reliable Wi-Fi you expect to have.

Include music, video and uploads in the budget too. Spotify quality settings and YouTube viewing time can change the total. In the example, 0.56GB for Maps plus 3GB for other apps is 3.56GB, leaving 1.44GB on a 5GB plan. That plan still needs to cover your dates and countries. Use Plan my trip for the whole-trip estimate or browse destinations for current offers.

For The SIM Shop, buy before flying and save the setup email. Install after landing using airport Wi-Fi, hotel Wi-Fi or another steady trusted connection. Keep your first accommodation address saved separately so the first useful thing on your phone does not depend on an internet connection.

Checked 3 October 2026. Calculations are explained in the article; they are not field-test results.

• Google Maps: offline areas
• Apple: mobile data usage
• Google Pixel: manage mobile data