How many MP3s or photos can I put on my flash drive?

Updated: 01/24/2018 by Computer Hope
USB flash drive

The number of songs or photos you can fit on a flash drive depends on several factors:

  • Size of the flash drive or storage device.
  • Length of the song or quality of the picture.
  • Sound quality of the MP3.

Size of the flash drive

The more storage space the flash drive has, the more MP3s and photos that it can fit on the drive. For example, 5 GB can hold much more than 1 GB.


This page can also be used to determine how many pictures or MP3s you can store on other storage devices. For example, the memory card used with your digital camera, your smartphone, or even the hard drive in your computer.

Length of the song or quality of the picture


If you need to know the size of flash drive you should get to backup your songs or pictures, determine the size of the files before purchasing the flash drive. Once you have determined how much space your MP3s or photos occupy, purchase a flash drive that meets or exceeds your requirements.

General rule on file sizes

As mentioned in the MP3 files and picture (i.e. GIF and JPEG) files sections, the amount of any file varies depending on their length, quality, and overall size. In the below chart is a general rule of how many MP3 and songs can be fit on a flash drive depending on the average size and assuming the operating system considers a GB to be 1,024 MB. For most users, they can assume their average MP3 size is 6 MB and an average photo size of 3 MB.

Flash drive size 8 MB MP3 6 MB MP3 3 MB Photo 2 MB Photo 10 MB Raw Photo
512 MB 64 85 170 256 51
1 GB 128 170 340 512 102
2 GB 256 341 682 1,024 204
3 GB 384 512 1,024 1,536 307
4 GB 512 682 1,364 2,048 409
5 GB 640 853 1,706 2,560 512
6 GB 768 1,024 2,048 3,072 614
8 GB 1,024 1,365 2,730 4,096 819
16 GB 2,048 2,730 5,460 8,192 1,638
32 GB 4,096 5,461 10,922 16,384 3,276
64 GB 8,192 10,922 21,844 32,768 6,553
128 GB 16,384 21,845 43,690 65,536 13,107
256 GB 32,768 43,690 87,380 131,072 26,214

MP3s sizes

At a more basic level, if the MP3 file is created with a quality of 128 kbit/s (the bitrate), the file size will be about 1/11th the size of the original file on the music CD. However, the original size is not always known.

A fairly common MP3 quality is 256 kbit/s. Downloading MP3 songs from or iTunes will get you this quality of MP3 file. There are other sources for MP3 files on the Internet, ranging from 128 kbit/s to 320 kbit/s.

On average, let's say a song is 3 1/2 minutes long. At this length and 256 kbit/s quality, the MP3 file size would be 6.56 MB. At three minutes, the file would be 5.62 MB and four minutes would be 7.5 MB.

If the MP3 songs are of a higher quality (320 kbit/s), you won't be able to fit quite as many on the flash drive since the file sizes would be larger. If the quality was lower (192 kbit/s or 128 kbit/s), you could fit more MP3s on the flash drive.

Ultimately, how many songs you can fit will depend on your preference of sound quality of the MP3s. Lower bit rate will result in lower sound quality, but more songs on the flash drive, whereas a higher bit rate will result in higher sound quality but fewer songs on the flash drive.

Picture (e.g., JPEG and GIF) sizes

A camera can take a picture in many different file sizes, depending on the quality of the picture and the type of camera that is being used. Therefore, the quantity of pictures a flash drive can store can vary depending on the size of each picture.

Generally speaking, most cameras take pictures that are around 3 MB in size. A cell phone camera will usually take a 2-3 MB picture at its highest setting, and an SLR camera taking photos in the RAW format can be as large as 10 MB.