How Long Does 1GB of Data Last? Hours per App and per Trip

HelloRoam sells travel eSIM plans, small fixed-size plans included, so these figures help you check whether a small plan will cover your trip before you buy.

Your own mix of apps sets the real answer. The tables below use the app makers' own figures where they publish one, and our data usage calculator adds up several apps at once.

How long 1GB of data lasts in each app and setting

Streaming and calls use the most data, and the setting you pick matters as much as the app. Here is how long 1GB lasts at each setting the app makers publish, plus an estimate for map navigation.

Netflix gives the plainest answer for its phone app's data settings: about 4 hours per GB on Automatic and about 6 hours on Save Data. Maximum Data can use 1 GB in 20 minutes or less, and Netflix recommends it only if you have an unlimited data plan.

On a phone, Spotify Free offers Low, Normal and High, and Very high needs Premium. Spotify's Automatic setting follows your connection, so pick a fixed level when your data is tight.

YouTube's help pages give no data figure per hour. Its table of recommended speeds for each video quality is the closest thing. The YouTube rows show how long 1GB lasts if a video pulled that speed for the whole hour, so read them as planning numbers, not measurements.

Zoom's guide for its phone app lists 1.0 Mbps up and 600 kbps down for high-quality video on Wi-Fi, and Zoom says the app adjusts to 3G, 4G, 5G or Wi-Fi. Its guide for computers lists 600 kbps each way for a one-to-one call. Zoom doesn't say which applies to a one-to-one call on a phone, so the table plans on the higher phone figure. Only the computer guide lists audio: 60 to 80 kbps without naming a direction, so we counted it twice, once for your voice and once for theirs.

The Google Maps help page on offline maps gives no data figure. So the map row uses an estimate from EE, a UK carrier: 100 to 200 KB a minute of navigation, or about 6 to 12 MB an hour.

Spotify, YouTube and Zoom list speeds, not data. A stream at 1 Mbps for an hour moves 450 MB, because a megabit is a million bits and a byte is 8 bits, as NIST's unit definitions set out. We divided 1GB, a billion bytes, by each hourly figure. We read every figure on its publisher's own page on October 27, 2026.

1GB of data covers hundreds of web pages and thousands of messages

Pages, messages and photos are small next to video. On a trip, they are the timetables and menus you look up and the photos you send home.

The HTTP Archive's 2025 Web Almanac put the median mobile page that isn't a home page at 1.8 MB, from its July 2025 crawl. It tests every page with an empty cache, which it says may not match how real people load pages. Xfinity's table assumes a much lighter page: 0.3 MB, or 3,413 pages per GB.

Xfinity's chat row is its estimate for one instant message. Short video feeds stream video, so count time scrolling them with the video rows above, not with the page row.

What 1GB of data gives you per day on a weekend, a week or two weeks

Split 1GB across your trip and you get a daily budget. Each app column shows how far that budget goes if you spend all of it on that one app.

For scale, Ericsson's Mobility Report figures put the average active smartphone in North America at 25 GB of mobile data a month at the end of 2025. That is roughly 0.8 GB a day, so at that average pace, 1GB would last a little over a day.

1GB is enough for a week when your days run on maps, messages, email and a few pages, and shows, video calls and app updates wait for Wi-Fi where you stay.

It falls short when you stream every day, video call home often, or share your phone's data with a laptop, because a hotspot runs on your phone's cellular data. Our guide to how long hotspot data lasts gives the hours per GB for a laptop. Even the light-use profile in our calculator, which adds daily music, browsing, social media and app updates, needs more than 1GB for a week.

For a month, 1GB leaves about 33 MB a day, which is about 46 minutes of Spotify on Normal. That only works if you are on Wi-Fi most of the time.

Your phone shows how much data each app uses

Your phone already counts data by app, which turns the tables above into your own numbers. Check a normal stretch at home before you pack, then divide by the days it covers to get your daily figure.

On an iPhone

1. Open the Settings app and tap Cellular.
2. Scroll down to see which apps used cellular data in the current period. You can turn cellular data off for any app there, and it will use only Wi-Fi.
3. Tap Reset Statistics to start a fresh count. Doing this as you land makes the counter show only your trip.

On a Google Pixel

1. Open the Settings app and tap Network & internet, then SIMs.
2. Tap App data usage to see a graph and each app's data below it. Tap the Down arrow to pick the time period.
3. To get an alert, tap Data warning & limit and turn on Set data warning if needed. Then tap Data warning and enter a figure in MB or GB a little below your plan's size.

Other Android phones use their own menu names, and Google points you to your phone maker's help when the Pixel steps don't match. Your phone's count can also differ from your carrier's: Apple says to contact your carrier for the most accurate figure, and Google says some carriers measure usage differently.

Settings that make 1GB of data last longer on a trip

• Turn on Low Data Mode for your travel line. On an iPhone with two lines, go to Settings, tap Cellular, tap the number, then turn on Low Data Mode. Apple says Low Data Mode on iPhone turns off Background App Refresh, lowers streaming quality and pauses updates such as iCloud Photos.
• On a Pixel, turn on Data Saver under Settings, Network & internet, Data Saver. Google says most apps then get background data only over Wi-Fi, while the app you have open can still use mobile data.
• Set Netflix to Save Data. In the app, tap My Netflix, your profile name, App Settings, then Cellular Data Usage under Video Playback. If Save Data is grayed out, turn Automatic off and finish or cancel any pending downloads, then try again. That takes you from about 4 hours per GB to about 6.
• Download shows and music on Wi-Fi before you fly. Netflix recommends Wi-Fi for downloads, and Spotify downloads over Wi-Fi by default. Music downloads on Spotify need Premium (Free downloads podcasts only), and you must go online once every 30 days to keep them.
• In the YouTube app, tap your profile picture, Settings, then Video quality preferences, and pick Data saver for mobile networks.
• Download Google Maps areas over Wi-Fi before you head out: in the app, search for the place, open its details, then tap More, Download offline map and Download.

Offline maps save less on a city break than you might expect. Google says transit, cycling and walking directions don't work offline, so a walker or a subway rider still needs data for routes. Offline maps also expire and need an update, and some countries and regions can't be downloaded at all.

Pick a plan size from your own daily data use

Take a normal day from your phone's counter or the tables, multiply it by your trip days, then add 20% for busy days and round up. Never round the result down.

Say you watch an hour of Netflix on Automatic each night of a 7-night trip. At about 4 hours per GB, that is 0.25 GB a night and 1.75 GB for the week. Add 20% for busy days and you get 2.1 GB, so buy at least 2.1 GB. 1GB won't cover it.

HelloRoam lists its fixed data sizes on each destination page, so you can match your total to a plan before you fly.

On our Mexico and Japan pages on October 26, 2026, the smallest plan was 1GB valid for 7 days, and the next size up was 3GB valid for 30 days. Sizes can change, and each destination page shows its current ones.

If you'll stream every night, skip the smallest size: the Netflix example above already needs more than twice 1GB. If your phone sits on Wi-Fi most of the day, a small plan can be all you need.