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Does a VPN use up your data?

Any service that requires you to stay tethered online for access will use up some of your data no matter how small or insignificant the service is. Complex software like a VPN might seem like the kind of app that could leech away your data at an alarming rate, but that’s not the case at all.

Charles Whitmore

Charles Whitmore

Jul 22, 2021 · 3 min read

Does a VPN use up your data?

Does a VPN use data?

Yes, VPNs will use data when activated. Now, how much will depend on the encryption protocol your VPN provider relies on, but usually the extra data use doesn’t exceed the 5–15% range. This extra usage is to account for the encryption process.

The added data on top of your monthly usage will be negligible in most cases. However, if you make a habit of streaming HD quality movies every day with a VPN active, the usage drain will be more noticeable. If someone watches 4K-quality movies all week and burns through 30 gigabytes of data, that number would be around 33 gigabytes if a VPN was used throughout.

But again, data usage depends on the encryption protocol a VPN service uses.

Which protocols use more data than others?

When it comes to picking the right VPN, one of the most important factors you need to consider is what encryption protocol they use. The trick is to find the right balance between data usage, speed, and protection.

A VPN service could advertise as being one of the fastest on the market. However, it could also rely on a weaker encryption protocol. That means that, while it can transmit your data faster, it's more vulnerable to hackers.

Generally, the higher the bit number for the encryption protocol, the better. 128-bit PPTP, for example, burns through the least amount of data, compared with all other major protocols. Unfortunately, it also has the lowest level of security, and experts strongly recommend that you don’t rely solely on this protection when browsing online.

256-bit encryption protocols offer far better protection, with only a moderate increase in data usage. Superior protection is a good price to pay for a slightly higher drain on data. NordVPN offers OpenVPN, a 256-bit protocol that sits at the perfect intersection between data use and protection.

How else can a VPN help you?

While a VPN demands slightly more data usage, it can help in many other ways. For example, a VPN can improve your speeds by keeping your activity hidden from your internet service provider, or ISP.

If you're doing something online that uses a lot of data — streaming a live sporting event, for example — your ISP may decide to throttle your bandwidth. Bandwidth throttling is when an ISP limits your internet speed, to keep the rest of their network running smoothly. This can happen during peak usage times in your area, or when work is being carried out on network infrastructure.

If you're using a VPN your ISP won't be able to see what you're doing; they won't know if your online activities use a lot of bandwidth. As a result, they won't be able to throttle your connection, and your speed should stay consistent.

When to use your VPN

You might be thinking: should I leave my VPN on all the time? If you want to keep your activity private, then the answer is yes.

However, if you’re finding that your VPN is eating into more data than usual, you might want to reconsider when to use your VPN.

Connecting your phone to public Wi-Fi? That's a great time to use a VPN. Having a VPN on your mobile device is a vital protection tool. At home and reading news online? You probably won’t need to burn through your data for this one. Just be aware that, as soon as the VPN is off, the privacy protection it provides is gone. Pick and choose what you’re OK with your ISP seeing.

However you want to use your VPN, make sure you choose the right one. NordVPN is secured with some of the best encryption on the market and, with over 5,000 servers around the world, it offers the best coverage on the market. NordVPN is available on almost every device and operating system, so you can have protection wherever you go.

Privacy protection starts with a click.

Stay safe with the world’s leading VPN