Internet Data Usage Calculator
Estimate monthly internet data use from streaming, calls, music and browsing.
About the Internet Data Usage Calculator
Enter the hours per day spent on SD, HD and 4K video, music, video calls and browsing, and the number of people. The calculator estimates monthly data use, to compare with a plan's cap.
Video dominates data use. Netflix estimates about 1 GB an hour for SD, 3 GB for HD and 7 GB for 4K. A 320 kbps music stream uses about 0.14 GB an hour, and a 1080p video call 1–2 GB. Use this to choose a mobile plan or check a data cap.
The formula
GB per month = Σ hours per day × GB per hour × 30
Worked example
One person: 2 hours of HD video, 1 hour of music, 1 hour of video calls and 2 hours of browsing a day
- HD video alone: 2 × 3 GB = 6 GB a day
- About 8 GB a day in total
- About 241 GB a month
Questions people ask
Can I reduce video data?
Lower the streaming quality; most apps have a data-saver setting.
Do downloads for offline viewing count?
Yes, once, when they download.