How long does a 50 GB game take to download on 100 Mbps internet?

On a 100 Mbps connection (12.5 MB/s theoretical, ~11.2 MB/s real-world), a 50 GB game takes approximately 1 hour and 14 minutes.

What is the difference between Mbps and MB/s?

Mbps stands for Megabits per second (used by ISPs), while MB/s stands for Megabytes per second (used for file size). 8 Megabits equal 1 Megabyte.

High-Speed Bandwidth & File Transfer Estimator

Internet Speed & Download Time Calculator

Calculate how long any game, movie, or file will take to download based on your internet connection speed (Mbps / Gbps).

File Size & Internet Speed Parameters

Total File / Download Size

Internet Connection Speed

Real-World Network Efficiency90%

(90% accounts for TCP/IP packet overhead, server limits, and WiFi interference)

Estimated Download Time

1h 15m 51s

For 50 GB file on 100 Mbps network.

Actual Transfer Rate

11.25 MB/s

Total Seconds

4,551 s

Bandwidth Architecture

Total Data in Megabytes:51,200 MB

Theoretical Speed (Mbps ÷ 8):12.50 MB/s

Efficiency Buffer:90%

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Understanding Internet Speed: Megabits (Mbps) vs Megabytes (MB/s)

The number one reason downloads appear slower than expected is the confusion between Megabits (Mb) and Megabytes (MB). Internet Service Providers (ISPs) advertise bandwidth in bits per second (e.g. 100 Mbps), whereas file sizes and download bars are measured in Bytes (e.g. 50 GB).

The 8-to-1 Bit-to-Byte Rule

Because 1 Byte = 8 bits, a 100 Mbps internet connection can only transfer a theoretical maximum of 12.5 Megabytes per second (MB/s) under perfect laboratory conditions.

Download Time Formula

Time (sec) = (File Size in MB) ÷ (Speed in Mbps ÷ 8)

Always add ~10% for TCP/IP packet protocol overhead.

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