How Big Is This?
File sizes in human terms
Enter a file size or drop a file to see how it compares to floppy disks, CDs, DVDs, and more. Calculate download times from dial-up to 5G, and discover fun comparisons like how many MP3 songs or Wikipedia copies would fit.
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Storage Media
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Fun Comparisons
Did You Know?
The entire Apollo 11 guidance computer had just 74KB of memory — less than a single smartphone photo today.
Downloading a 4K movie on 1990s dial-up would take approximately 3 months of continuous downloading.
All of English Wikipedia's text (22GB compressed) would fit on just 16 floppy disks... if floppy disks held 1.44GB instead of 1.44MB.
A single modern video game (50-100GB) contains more data than all the software that existed in the world before 1980.
The first hard drive (IBM 350, 1956) stored 3.75MB and was the size of two refrigerators. Today, a microSD card holds 1TB.
Netflix uses about 3GB per hour for HD streaming. A month of 4 hours daily = 360GB, or 250,000 floppy disks.
Quick Reference: Common File Sizes
| Size | Floppy Disks | CDs | DVDs | Dial-up Time | 5G Time |
|---|---|---|---|---|---|
| 100 MB | 69 | 0.14 | 0.02 | 4 hours | 4 seconds |
| 1 GB | 711 | 1.4 | 0.21 | 1.7 days | 40 seconds |
| 10 GB | 7,111 | 14 | 2.1 | 17 days | 7 minutes |
| 100 GB | 71,111 | 143 | 21 | 166 days | 1.1 hours |
| 1 TB | 711,111 | 1,429 | 213 | 4.5 years | 11 hours |
| 10 TB | 7.1 million | 14,286 | 2,128 | 45 years | 4.6 days |