How Much Data Does Netflix Use?

If you like streaming television series and films on the go, you have probably asked: how much does netflix use data? In short, Netflix uses between 300MB and 7GB of data per hour depending on your video quality and account settings. 

Standard definition (SD) video consumes roughly 1GB per hour, while streaming in Full High Definition (1080p) uses up to 3GB per hour. If you watch Ultra HD (4K), that hourly figure jumps to 7GB. 

This guide breaks down Netflix data usage per hour and movie, explores how long UK mobile data allowances last, and explains how to prevent video streaming from draining your monthly phone allowance. 

How Much Data Does Netflix Use Per Hour? 

When you stream Netflix over cellular data, your hourly data burn depends primarily on the video quality you choose. 

Higher video resolutions require millions more pixels to be downloaded across mobile masts to your smartphone screen every second. Because of this extra visual detail, bumping the resolution from standard definition to crisp HD or 4K causes your data consumption to climb rapidly. 

The estimates below are based on Netflix's official published data usage guidelines: 

• Low Quality (Data Saver): Uses about 170MB to 300MB per hour (basic mobile resolution, best for stretching small data bundles). 
• Medium Quality (Standard Definition - SD): Uses about 700MB to 1GB per hour (standard DVD quality, clear on smartphone displays). 
• High Quality (High Definition - 720p & 1080p): Uses up to 3GB per hour (sharp high-definition picture, noticeably heavier on data). 
• Ultra High Quality (4K Ultra HD): Uses up to 7GB per hour (highest visual resolution, burns through gigabytes very quickly). 

Note: All data figures are realistic estimates based on Netflix's published guidelines. Actual data consumption can fluctuate slightly depending on your handset model, connection stability, and sound format. 

How Much Data Does Netflix Use at Different Video Qualities? 

Looking closely at playback settings helps you find the right balance between crisp image quality and smart data use. 

Understanding how much data usage does netflix use across each tier prevents unexpected bill shock when you step outside Wi-Fi range. 

Low Quality and Data Saver 

Netflix's Low setting (or the mobile app's "Save Data" setting) uses roughly 170MB to 300MB per hour. 

This setting compresses the video stream to preserve your cellular allowance. While the image is softer, it is perfectly watchable on smaller mobile displays and will not quickly exhaust entry-level mobile plans. 

Standard Definition (SD) 

Standard Definition consumes around 700MB to 1GB per hour. 

This roughly equates to standard 480p DVD resolution. It delivers a solid, clear viewing experience for phone screens while keeping your data burn manageable during daily commutes. 

High Definition (HD and Full HD) 

Streaming in High Definition (720p or 1080p) uses up to 3GB per hour. 

Regarding Netflix data usage 1080p, streaming Full HD delivers incredible detail, vibrant colour, and sharp textures. However, because it downloads significantly more video information every minute, watching full episodes in 1080p requires a generous data allowance. 

Ultra HD (4K) 

Watching content in Ultra HD brings Netflix data usage 4K up to 7GB per hour. 

While 4K offers cinema-grade visual fidelity, most smartphone screens cannot display native 4K resolutions. Streaming in 4K over cellular networks is generally unnecessary on a phone and can empty a standard monthly mobile plan in just a few sittings. 

How Much Data Does It Take to Stream a Movie on Netflix? 

If you are planning to watch a feature-length film on the train, you are likely wondering how much data to stream a movie. 

The total data consumed depends directly on the running time of the film and your chosen streaming quality: 

• 90-Minute Movie (SD Quality): Uses approximately 1.5GB of data. 
• 90-Minute Movie (HD / 1080p): Uses approximately 4.5GB of data. 
• 90-Minute Movie (4K Ultra HD): Uses approximately 10.5GB of data. 
• Two-Hour Movie (SD Quality): Uses approximately 2GB of data. 
• Two-Hour Movie (HD / 1080p): Uses approximately 6GB of data. 
• Two-Hour Movie (4K Ultra HD): Uses approximately 14GB of data. 

If you stream a full two-hour film in 1080p Full HD on a 10GB monthly plan, that single film will consume more than half of your mobile data allowance for the entire month. Choosing Standard Definition for mobile viewing is a straightforward way to keep entertainment accessible without sacrificing your remaining gigabytes. 

How Long Can You Watch Netflix with 1GB, 10GB, 50GB or 100GB? 

To manage your mobile spend, it helps to see how much actual viewing time different data allowances provide. 

Here is how long common UK monthly data pots last when streaming at different quality levels: 

• 1GB Allowance: Provides roughly 1 hour in SD, or only 20 minutes in HD (1080p). 
• 10GB Allowance: Provides roughly 10 hours in SD, or around 3.3 hours in HD (1080p). 
• 50GB Allowance: Provides roughly 50 hours in SD, or around 16.5 hours in HD (1080p). 
• 100GB Allowance: Provides roughly 100 hours in SD, or around 33 hours in HD (1080p). 

Keep in mind that these streaming times assume your entire monthly pot goes towards Netflix. Other daily activities—such as YouTube data usage, Spotify streaming, social media feeds, and GPS navigation—also draw from the same allowance. 

To explore how these larger tiers support wider phone use, check our in-depth guides on how long 50GB lasts and is 100GB enough. 

Does Downloading Netflix Movies Use Mobile Data? 

Streaming and downloading content work differently behind the scenes, and understanding the difference helps you protect your allowance. 

When you stream, video information downloads temporarily into a buffer as you watch. If you rewatch a scene or start the episode again, that data downloads all over again. 

When you download a title, the video file saves directly to your smartphone's internal storage. If you download a Netflix film while connected to cellular data, it uses the exact same amount of data as streaming it. 

However, once a title is saved to your phone, watching it offline uses zero mobile data. To protect your monthly allowance, always adjust the Netflix app settings to "Download on Wi-Fi Only" so large movie files never start saving over your cellular plan by accident. 

How to Reduce Netflix Mobile Data Usage 

If you stream shows regularly on public transport, a few quick settings adjustments will help you learn how to reduce Netflix data usage without ruining your viewing experience: 

• Enable the "Save Data" Setting: Open the Netflix app, tap your profile icon, go to App Settings, tap Cellular Data Usage, and switch from Automatic to Save Data. This locks your mobile playback to a data-efficient resolution (around 1GB per 6 hours). 
• Lower Your Account Playback Quality: Log into Netflix via a web browser, navigate to Account Settings, find Playback Settings, and switch default quality from High to Medium or Low. 
• Download Over Wi-Fi Before Travelling: Save full episodes and movies to your device while connected to your home broadband before you set off on your journey. 
• Turn On Wi-Fi Only Downloads: Inside the Netflix app settings, ensure the Wi-Fi Only toggle is turned on under the Downloads section so downloads pause when you leave Wi-Fi range. 
• Turn Off Autoplay Previews: Turn off autoplay trailers and previews in your account profile settings so videos do not stream automatically while you browse titles. 

How to Check Netflix Data Usage on Your Phone 

Your mobile phone tracks cellular usage for individual apps, allowing you to see your exact viewing numbers rather than relying on general estimates. 

Check Netflix Data Usage on iPhone 

1. Open the Settings app on your iPhone. 
2. Tap Mobile Data (or Cellular). 
3. Scroll down through your apps to find Netflix. 
4. The number beneath the app displays the total data consumed over cellular masts. (Tip: Scroll to the bottom and tap Reset Statistics on the day your mobile billing cycle renews to track clean monthly figures). 

Check Netflix Data Usage on Android 

1. Open the Settings app on your Android handset. 
2. Tap Network & Internet (or Connections on Samsung devices). 
3. Select SIMs and tap App data usage. 
4. Tap Netflix to see a clear breakdown of background and foreground cellular data use during your current billing period. 

Which Talk Home Mobile Data Plan Is Best for Netflix? 

The best mobile plan for streaming depends entirely on how often you watch shows away from home broadband. 

If you are evaluating your overall cellular consumption across all your favourite apps, our parent pillar guide on how much mobile data do I need provides a complete roadmap for calculating your personal requirements. 

• Occasional Viewers (5GB to 15GB): Suitable if you mostly watch Netflix at home on broadband and only stream an occasional 30-minute episode on the bus using the Save Data setting. 
• Regular Commuters (30GB to 50GB): Ideal if you stream an hour of television each day during travel, scroll social media, and listen to music without worrying about running dry. 
• Heavy Streamers (100GB or Unlimited): Best if you stream multiple episodes daily in high definition, tether your connection to an iPad or laptop, or have no fixed home broadband. If you fall into this category, explore whether an unlimited data SIM offers the freedom you need. 

Talk Home Mobile provides flexible 30-day rolling SIM-only data plans powered by EE’s nationwide 4G and 5G network. With reliable coverage across more than 99% of the UK population, you can enjoy smooth streaming without credit checks, hidden setup charges, or long-term contract lock-ins. 

Conclusion 

Knowing how much data Netflix uses gives you complete control over your mobile spending. 

By setting your cellular stream to Save Data mode, lowering playback resolutions to Standard Definition, and downloading titles over home Wi-Fi before stepping out the door, you can enjoy your favourite series without burning through your monthly pot. 

Take a moment to check your phone settings, adjust your video quality, and choose a mobile allowance that suits your viewing habits with confidence. 

Love streaming Netflix on the go? Explore Talk Home Mobile's flexible SIM-only data plans and find a data allowance that suits your viewing habits. 

Frequently Asked Questions 

How much data does Netflix use in one hour? 

Netflix uses approximately 300MB per hour on Low quality, 700MB to 1GB per hour in Standard Definition (SD), up to 3GB per hour in High Definition (HD), and up to 7GB per hour in 4K Ultra HD. 

How much data does a two-hour Netflix movie use? 

A two-hour movie uses roughly 2GB of data in Standard Definition, around 6GB in 1080p High Definition, and up to 14GB in 4K Ultra HD. 

How much data does Netflix use at 1080p? 

Streaming Netflix at 1080p Full HD consumes up to 3GB of mobile data per hour. 

How much data does Netflix use in 4K? 

Streaming Netflix in 4K Ultra HD uses up to 7GB of mobile data per hour. 

Can I watch Netflix with 1GB of data? 

Yes, but viewing time will be limited. With 1GB of data, you can watch approximately 1 hour of video in Standard Definition, or up to 3 to 4 hours if you enable the "Save Data" setting in the Netflix mobile app. In 1080p HD, 1GB lasts only about 20 minutes. 

Does downloading Netflix movies use mobile data? 

Yes, if you download the title over a mobile data connection. However, watching a movie that has already been downloaded to your phone uses zero mobile data. You can enable "Wi-Fi Only" downloads in the app settings to protect your allowance.