DOWNLOAD UTILITY

File Download Time Calculator

Calculate how long large video games (Call of Duty, GTA, Cyberpunk), 4K HDR movies, and operating system installers will take on your connection.

Overview: Calculate how long large video games (Call of Duty, GTA, Cyberpunk), 4K HDR movies, and operating system installers will take on your connection.

Real-World Efficiency90% (Standard Cable / Broadband)
Unit Standard:
Estimated Download Time90% Real-World
14 min 49 sec
Based on 10 GB transferred at 100 Mbps
Theoretical Speed13 min 20 sec
Actual Transfer Rate11.25 MB/s
Presets:
Formula

How the File Download Time Calculator Works Out Download Time

Download Time = (File Size in GB × 8,000) / Speed in Mbps

Tailored for large multi-gigabyte media and software distributions.

Step 1

Convert 80 GB to bits

80 GB × 8 = 640,000,000,000 bits

Step 2

Apply 90% efficiency

100 Mbps × 0.90 ≈ 90 Mbps of usable download throughput after TCP/IP overhead.

Step 3

Divide bits by throughput

80 GB at 100 Mbps takes 1 hr 58 min 31 sec (theoretical minimum 1 hr 46 min 40 sec).

Mbps (Megabit per second)Used by ISPs and Speedtests. Lowercase 'b'. 1 Mbps = 1,000,000 bits/s.
vs
MB/s (Megabyte per second)Used by Steam, Chrome, Windows. Uppercase 'B'. 1 MB/s = 8,000,000 bits/s.
Benchmark Reference

File Download Time Calculator — Reference Table

Typical download durations for common file sizes, to sanity-check the result from the File Download Time Calculator.

File Size10 Mbps25 Mbps50 Mbps100 Mbps200 Mbps500 Mbps1 Gbps
100 MB1 min 29 sec36 seconds18 seconds8.9 seconds4.4 seconds1.8 seconds889 ms
500 MB7 min 24 sec2 min 58 sec1 min 29 sec44 seconds22 seconds8.9 seconds4.4 seconds
1 GB14 min 49 sec5 min 56 sec2 min 58 sec1 min 29 sec44 seconds18 seconds8.9 seconds
5 GB1 hr 14 min 4 sec29 min 38 sec14 min 49 sec7 min 24 sec3 min 42 sec1 min 29 sec44 seconds
10 GB2 hrs 28 min 9 sec59 min 16 sec29 min 38 sec14 min 49 sec7 min 24 sec2 min 58 sec1 min 29 sec
25 GB6 hrs 10 min 22 sec2 hrs 28 min 9 sec1 hr 14 min 4 sec37 min 2 sec18 min 31 sec7 min 24 sec3 min 42 sec
50 GB12 hrs 20 min 44 sec4 hrs 56 min 18 sec2 hrs 28 min 9 sec1 hr 14 min 4 sec37 min 2 sec14 min 49 sec7 min 24 sec
100 GB1 day 41 min9 hrs 52 min 36 sec4 hrs 56 min 18 sec2 hrs 28 min 9 sec1 hr 14 min 4 sec29 min 38 sec14 min 49 sec
AEO / Expert Answers

Frequently Asked Questions About File Download Time Calculator

How long does a 100GB game take to download on modern connections?

At 100 Mbps: ~2 hours 28 mins. At 300 Mbps: ~49 mins. At 500 Mbps: ~29 mins. At 1 Gbps (1,000 Mbps): ~14 mins 49 secs.