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Tech December 20, 2021 4 min read

Real Download Times at Every Internet Speed: From 10 Mbps to Gigabit

How long does a 50 GB game take to download? At 100 Mbps: 67 minutes. At gigabit: 7 minutes. Here is the full table for every common file size and speed.

The download time formula is simple: file size (in megabits) divided by speed (in megabits per second) equals time in seconds. The complication is that file sizes are in megabytes or gigabytes while speeds are in megabits — and you have to convert between them. One byte = 8 bits. So a 1 GB file is 8 Gb (gigabits), and at 100 Mbps, it takes 8,000 Mb / 100 Mbps = 80 seconds. In practice, add 10-30% for network overhead.

Real-World Download Times

A 5 MB song: instant on any modern connection (under 1 second at 50+ Mbps). A 700 MB standard-def movie: 56 seconds at 100 Mbps, 6 seconds at gigabit. A 4.7 GB HD movie: 6.3 minutes at 100 Mbps, 38 seconds at gigabit. A 50 GB video game: 67 minutes at 100 Mbps, 6.7 minutes at gigabit, 11 hours at 10 Mbps. A 100 GB AAA game: 2.2 hours at 100 Mbps, 13 minutes at gigabit.

These numbers assume your connection runs at full speed throughout the download, which is optimistic. Real-world factors that slow downloads: other devices sharing your connection, WiFi interference (use ethernet for large downloads), server-side speed limits (some game servers cap download speed), and ISP congestion during peak hours (evenings and weekends). Actual times are typically 20-40% longer than the theoretical minimum.

Do You Need Faster Internet?

If your household browses the web and streams video, 100 Mbps is plenty. If you download large files frequently (games, video editing, software development), 300-500 Mbps makes a meaningful difference in wait times. Gigabit only makes sense if you transfer very large files regularly or have 5+ heavy users on the same connection. Most people who upgrade from 100 to 500+ Mbps notice little difference in daily use because streaming, browsing, and video calls do not benefit from speeds above 50-100 Mbps.

Check how long any specific download takes at your speed with our download time calculator — it handles the Mbps/MBps conversion automatically and includes presets for common file sizes.

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