How long does it take to download 10 GB?
At 100 Mbps, 10 GB takes 800 seconds, which is 13 min 20 s, at best; at 25 Mbps it takes 53 min 20 s, and at 1 Gbps about 80 seconds. 10 GB is 80,000 megabits, so divide 80,000 by your speed in Mbps to get seconds.
10 GB download times at common speeds
| Speed | Same in MB/s | Seconds | Best case | At 90% efficiency |
|---|---|---|---|---|
| 10 Mbps | 1.25 MB/s | 8,000 | 2 h 13 min 20 s | 2 h 28 min 9 s |
| 25 Mbps | 3.125 MB/s | 3,200 | 53 min 20 s | 59 min 16 s |
| 50 Mbps | 6.25 MB/s | 1,600 | 26 min 40 s | 29 min 38 s |
| 100 Mbps | 12.5 MB/s | 800 | 13 min 20 s | 14 min 49 s |
| 200 Mbps | 25 MB/s | 400 | 6 min 40 s | 7 min 24 s |
| 300 Mbps | 37.5 MB/s | 266.7 | 4 min 27 s | 4 min 56 s |
| 500 Mbps | 62.5 MB/s | 160 | 2 min 40 s | 2 min 58 s |
| 1,000 Mbps (1 Gbps) | 125 MB/s | 80 | 1 min 20 s | 1 min 29 s |
| 2,000 Mbps (2 Gbps) | 250 MB/s | 40 | 40 s | 44.4 s |
Each 10 GB time is exactly ten times the 1 GB time, because download time scales in a straight line with size. The 90% column matches the optional efficiency setting in the download time calculator, which also handles any other size.
The formula
seconds = GB × 8,000 ÷ Mbps 10 GB at 100 Mbps = 10 × 8,000 ÷ 100 = 800 s = 13 min 20 s
Each gigabyte is 1,000 megabytes, and each megabyte is 8 megabits. If your launcher shows MB/s instead, divide 10,000 MB by that figure: at 25 MB/s, 10 GB takes 400 s.
Working backwards: the speed for a deadline
If you need a 10 GB download finished within a certain time, turn the formula around:
Mbps needed = GB × 8,000 ÷ seconds
| Finish 10 GB within | Speed needed (full rate) | At 90% efficiency |
|---|---|---|
| 1 hour | 22.2 Mbps | 24.7 Mbps |
| 30 minutes | 44.4 Mbps | 49.4 Mbps |
| 10 minutes | 133.3 Mbps | 148.1 Mbps |
| 5 minutes | 266.7 Mbps | 296.3 Mbps |
| 1 minute | 1,333.3 Mbps | 1,481.5 Mbps |
Finishing in much under 85 seconds needs more than gigabit: on 1 Gb Ethernet a wired test typically tops out near 940 Mbps, which puts 10 GB at about 85 seconds. To see how a download fits alongside streams and calls on your plan, use what can my speed handle.
Why big downloads take longer than the table
- Overhead and Wi-Fi. The same losses as any download: a few percent for protocol overhead on a cable, often much more on Wi-Fi.
- Server limits. Game stores, update services and file hosts decide how fast they send. A download stuck at the same speed regardless of time of day is often a server limit.
- Disk speed. At 1 Gbps, data arrives at up to 125 MB/s. A slow drive or a nearly full one can become the bottleneck before the connection does.
- Unpacking. Many games and installers download compressed data and then unpack or verify it, so the time until something is ready to use is longer than the download itself.
- Sharing the line. Two 10 GB downloads at once each get about half the speed, so both finish later than one would alone.
A launcher reading in MB/s multiplied by 8 gives the Mbps figure to compare with your plan; Mbps vs MB/s explains the conversion. If downloads are consistently slow on a cable, check the connection with the speed test checker.
Tips for large downloads
- Use a wired connection for consoles and PCs that download large games.
- Schedule big downloads overnight, when nobody else needs the line and provider networks are quieter.
- Pause other large downloads and cloud backups so one transfer gets the full speed.
- For a single 1 GB file, the numbers are one tenth of these; see how long to download 1 GB.
Key takeaways
- 10 GB = 80,000 megabits, so seconds = 80,000 ÷ Mbps.
- 10 GB takes 13 min 20 s at 100 Mbps, 53 min 20 s at 25 Mbps and 80 s at 1 Gbps.
- To finish 10 GB in 10 minutes you need about 133 Mbps at full rate.
- Server limits, Wi-Fi, disk speed and unpacking often matter more than the plan for big downloads.
Frequently asked questions
How long does 10 GB take at 50 Mbps?
1,600 seconds, which is 26 min 40 s at the full speed, or about 29 min 38 s at 90% efficiency.
How long does 10 GB take on gigabit?
80 seconds at 1,000 Mbps. A wired gigabit connection typically tests around 940 Mbps, which gives about 85 seconds.