How much internet data do you use?
Move the sliders for video, music, social media and downloads to estimate your monthly and yearly usage.
Estimate internet data use from your habits
How many gigabytes do you use each day, month or year? Adjust TikTok, YouTube, streaming and downloads. Everything runs in your browser.
TikTok / Reels— GB/month
Short videos: 0,8 GB/h by default (rough estimate).
YouTube— GB/month
Data usage depends on the selected resolution.
Netflix / series— GB/month
Netflix publishes estimates by video quality.
Other video / streaming— GB/month
Prime Video, Disney+, Twitch, etc.: approximate.
Spotify / music— GB/month
Assumption: 0,1 GB/h, excluding lossless quality.
Social media / web— GB/month
Navigation, photos, messages : 0,15 GB/h.
Jeux et mises à jour— GB/month
Valeur initiale : 0 GB/semaine. 10 GB/semaine = exemple modifiable, pas une moyenne officielle.
Autres téléchargements— GB/month
Valeur initiale : 0 GB/semaine. 5 GB/semaine = valeur illustrative, non issue d’une statistique.
Sources and calculation method
Netflix : official data use by quality. YouTube : recommended bitrates et October 2026 measurements. TikTok : Selectra estimates, which vary by usage. Other categories use rough assumptions. Weekly usage is converted using 52/12 weeks per month; daily usage uses 365 days per year.
How to estimate your monthly data use
Start with the services you use most. Video quality has a large impact: a 4K stream can use several times as much data as standard definition. Enter daily or weekly viewing time, then add games, updates and other downloads.
Why the results are estimates
Actual consumption depends on compression, autoplay, device settings and video bitrate. The calculator uses indicative rates, not measurements from your router or mobile carrier. It does not access your browsing history.
Frequently asked questions
How many GB does Netflix use?
Netflix publishes approximate data use by quality, with 4K streaming reaching around 7 GB per hour. Select your usual quality above.
Do online games use much data?
Playing online often uses less data than downloading a full game or a large update. Enter downloads separately for a more useful estimate.
Can I estimate mobile data too?
Yes. Use the same calculator for mobile or home internet, but include only activities that happen on the connection you want to estimate.
Source: Netflix data usage guidance.
Frequently asked questions about this calculator
Why does 4K streaming use more data than 720p?
Higher resolutions generally require higher bitrates, though compression and the streaming service also affect usage.
Do game downloads count toward monthly data?
Yes, when you include them in the downloads category. Game patches may consume more data than online play itself.