Where to find your data usage right now
The fastest way to check your remaining data depends on what device you use and which carrier you have. On most phones, you can see it in Settings without opening your carrier's app. On a computer, you'll need to log into your carrier's website or account portal. The number you're looking for is usually called "data used this month" or "data remaining" — it tells you how much of your monthly allowance you've burned through.
Your carrier tracks this in real time, so the number updates throughout the day as you use data. The amount shown in your phone's Settings may lag behind what your carrier's website shows by a few hours, but both are accurate enough to tell you whether you're running low.
Key Takeaways
- On iPhone, go to Settings > Cellular > Cellular Data to see total data used this month; on Android, go to Settings > Network & Internet > Mobile Network > Data Usage.
- Your carrier's website or app shows the most current data count and usually breaks down usage by app, so you can see what's eating your allowance.
- The number in your phone's Settings shows what your phone has used, but tethering and some background activity may not appear there.
- If you're close to your limit, turn off background data for apps you don't need running constantly to slow your usage.
Checking data on iPhone
Open Settings and tap Cellular. Scroll down to see "Cellular Data" at the top — this shows your total data used since you last reset the counter. Below that, you'll see a list of every app and how much data each one has used. The number resets on the first day of your billing cycle, which your carrier sets (not always the first of the month).
To reset this counter manually and start fresh, scroll to the bottom of the Cellular screen and tap "Reset Statistics." This doesn't affect your actual data with your carrier — it only resets what your phone is counting. If you want to see what your carrier thinks you've used, you need to check your carrier's app or website instead, because your phone and your carrier sometimes count differently.
Checking data on Android
Open Settings and go to Network & Internet (or Connections on some phones). Tap Mobile Network or Mobile Data, then Data Usage. You'll see your total data used this month and a graph showing your usage over time. Like iPhone, this resets on your billing cycle date.
Android also shows you which apps have used the most data. If you see an app using far more than you expected, you can tap it and turn off "Allow background data" to stop it from using data when you're not actively using the app. This is especially useful for apps like social media or video streaming that can burn through data in the background.
Checking data on your carrier's website or app
Your carrier's count is the one that actually matters for your bill. Open your carrier's app or go to their website and log in with your account number and password. Look for a section called "Usage," "Data," "My Account," or "Billing." Most carriers show you a bar graph with how much data you've used and how much remains in your plan.
This number may differ from what your phone shows because your carrier counts data differently — they include things like tethering (using your phone as a hotspot), some background syncing, and network overhead that your phone doesn't always track. If you're close to your limit, trust your carrier's number, not your phone's.
Understanding the difference between your phone and your carrier
Your phone counts data used by apps on your device. Your carrier counts all data that passes through their network, including data used when you tether your phone to a laptop, data used by your phone's automatic updates, and small amounts of overhead from how data packets are sent. This is why your carrier's count is usually higher than your phone's count.
If you're trying to stay under a limit, check your carrier's website or app, not your phone's Settings. Your phone's count is useful for finding which apps are using the most data, but your carrier's count is what determines whether you go over and face overage charges or throttling (slower speeds).
What to do if you're running low on data
If you have less than 10 percent of your monthly allowance left, turn off mobile data for apps you don't need. Go to your phone's data settings and turn off background data for social media apps, video apps, and email. You can still use these apps on Wi-Fi, but they won't use data when you're on the go.
Turn off automatic app updates and automatic photo backup until you're on Wi-Fi. On iPhone, go to Settings > App Store and turn off "App Updates." On Android, open the Play Store, tap your profile icon, go to Settings > Network Preferences, and set app downloads to Wi-Fi only. Disable video autoplay in social media apps — most of them have a setting to play videos only on Wi-Fi.
Frequently Asked Questions
Why does my phone show different data than my carrier's website?
Your phone counts data used by apps on your device. Your carrier also counts tethering, automatic updates, and network overhead. Your carrier's number is what determines your bill, so if they differ, trust your carrier's count.
Can I check my data on a computer?
Yes. Log into your carrier's website with your account number and password. Most carriers have a usage section that shows your data count and breaks it down by line if you have multiple phones on your account. You cannot check data used by your phone through a computer — only what your carrier has recorded.
Does Wi-Fi use count toward my data limit?
No. Data used on Wi-Fi does not count toward your mobile data limit. Only data used through your carrier's cellular network counts. If you're running low, switch to Wi-Fi whenever possible.
What happens if I go over my data limit?
This depends on your plan. Some carriers charge overage fees per gigabyte. Others slow your speeds to a crawl (throttling) for the rest of your billing cycle. Check your carrier's website or your bill to see which applies to you.
How do I stop apps from using data in the background?
On iPhone, go to Settings > Cellular, scroll down, and turn off Cellular Data for apps you don't need running in the background. On Android, go to Settings > Apps, select an app, tap Permissions, and turn off "Allow background data." You can still use these apps on Wi-Fi.