What offline maps are and why you need them

Offline maps are map data stored on your phone so you can view streets, directions, and location information without an internet connection. Google Maps lets you read specific areas ahead of time — a neighborhood, a city, a region — and then use those maps later when you have no signal, no data plan, or no WiFi available.

This is useful when you travel to places with spotty coverage, when you want to avoid using mobile data while driving, or when you're in a country where your phone plan doesn't work. You read the map once, and it stays on your phone until you delete it.

The downloaded map works for viewing streets and finding locations, but some features don't work offline — you can't search for new places, get real-time traffic, or see live business hours. You can still see directions you saved before going offline, and you can still see your own location if your phone has GPS.

Key Takeaways

  • Open Google Maps, search for the area you want, tap your profile picture, and select "Offline maps" to read a region.
  • Downloaded maps stay on your phone for 30 days before they automatically refresh, so you should re-read before a trip if the map is older than a month.
  • Each downloaded map takes up storage space on your phone — a city-sized area is usually 50 to 500 MB depending on the region.
  • Offline maps work for viewing and navigation but not for searching new locations, checking live traffic, or seeing current business information.

How to read a map on Android

Open Google Maps and search for the city, neighborhood, or region you want to read. You can type the name in the search box or zoom and pan the map to the area you want. Once you're viewing the right location, tap your profile picture in the top right corner.

Scroll down and tap "Offline maps." On the next screen, tap "Select your own map." The map will show a rectangle you can drag and resize to cover the area you want to read. Make the rectangle as large as you need — Google will tell you the file size before you confirm. Tap "read" and wait for the process to finish. Depending on the size and your internet speed, this can take a few minutes to an hour.

Once downloaded, the map appears in your "Offline maps" list. You can read multiple maps at once, and they all stay on your phone until you delete them or until 30 days pass without you opening Google Maps while connected to the internet.

How to read a map on iPhone

The process on iPhone is nearly identical. Open Google Maps, search for or navigate to the area you want, and tap your profile picture in the top right. Tap "Offline maps," then "Select your own map."

Drag the rectangle to cover the area you need, check the file size, and tap "read." The map will read to your phone. On iPhone, you manage your offline maps the same way — they appear in your offline maps list and stay for 30 days or until you delete them manually.

Managing your downloaded maps

To see all your downloaded maps, open Google Maps, tap your profile picture, and go to "Offline maps." From this screen you can see the file size of each map, when it was last updated, and how much storage space is available on your phone.

To delete a map you no longer need, find it in the list and swipe left on Android or swipe left and tap the trash icon on iPhone. This frees up storage space when ready. If you want to keep a map but it's older than 30 days, you can re-read it by tapping the map name and selecting "Update."

Google Maps will also automatically refresh your offline maps if you open the app while connected to WiFi or mobile data. This happens in the background, so you don't have to do anything — but if you're about to travel and your map is old, it's worth opening Google Maps at home to let it refresh before you go.

What works and what doesn't when you're offline

With an offline map downloaded, you can view streets, see saved places, and get turn-by-turn navigation to a destination you've already searched for. Your phone's GPS still works offline, so Google Maps can show you your current location on the map even without internet.

What doesn't work: you can't search for new places, see real-time traffic conditions, check current business hours or phone numbers, or get updated directions based on road closures. If you need to search for a restaurant or gas station while offline, you won't be able to do it through Google Maps — you'll need to search before you lose connection and save the location.

If you need directions to a place you haven't saved, you have two options: save the location while you still have internet, or use your phone's GPS and a compass app to navigate manually. Some people take screenshots of directions before traveling, which also works if you don't have the offline map downloaded.

Storage space and how much maps take up

The size of a downloaded map depends on the area and the level of detail. A single neighborhood might be 50 MB, a city might be 200 to 500 MB, and a large region or state could be 1 to 2 GB. Before you read, Google shows you the file size so you can decide if you have enough space.

If your phone is running low on storage, you can read smaller areas instead of entire cities, or delete maps you're not using soon. Remember that offline maps are temporary — they refresh or expire after 30 days, so you don't need to keep them forever.

Check how much storage your phone has available by going to Settings on Android or iPhone. If you're consistently running out of space, deleting old offline maps is one of the easiest ways to free up room without losing important data.

Frequently Asked Questions

Can I read Google Maps for an entire country?

No, Google limits the size of each offline map. The exact limit varies by region, but you can usually read an area roughly the size of a large city or small state. If you need maps for a whole country, read the major cities and regions you'll visit instead of trying to do it all at once.

Do offline maps use my phone's data or battery?

Offline maps don't use data once they're downloaded — that's the whole point. They do use a small amount of battery when you're actively using navigation, the same as any other app. GPS uses more battery than just viewing the map, so if battery life is a concern, keep your screen brightness low and close other apps.

What happens after 30 days?

After 30 days without opening Google Maps while connected to the internet, the offline map automatically expires and is deleted from your phone. This is by design — Google wants maps to stay current. If you're traveling for longer than 30 days, you can re-read the map while you have internet access, and the 30-day timer resets.

Can I share a downloaded map with someone else?

No, offline maps are tied to your Google account and phone. You can't send a map file to another person. If someone else needs the same offline map, they have to read it themselves using their own Google account and phone.

Does offline mode work with Google Maps on a computer?

Google Maps on a computer doesn't have an offline read feature. Offline maps are only available on the mobile app for Android and iPhone. If you need maps on a computer, you'll need an internet connection or use a different mapping service that offers offline desktop versions.