Estimate daily and monthly mobile or broadband data use from streaming, music, browsing and video calls, and how long a data plan lasts.
Result
How to use this tool
Enter how many hours a day you spend on each activity.
Enter your monthly plan in GB to see how many days it lasts.
Read GB per day and per month.
Compare monthly use with your plan allowance.
Formula & worked example
2 hours of HD video a day uses 6 GB/day, about 180 GB/month.
Limitations — read this before you rely on it
Estimates from typical bitrates; actual use depends on quality settings, codec and app behaviour.
Frequently asked questions
About 3 GB per hour at typical HD quality; 4K can use 7 GB per hour or more.
Plain web pages are small; the figure rises sharply if browsing includes lots of video autoplay.
No — add large downloads, game updates and cloud backups separately; they are not hourly activities.
Yes, monthly figures use 30 days for a simple comparable estimate.
Providers round up, count tethering and background use, and measure in GB vs GiB; treat this as an estimate.