The megabyte (MB) equals 1,024 kilobytes or 1,048,576 bytes, commonly used to describe the size of photos, music files, and applications. A typical smartphone photo ranges from 2 to 10 MB, and a single song in MP3 format is roughly 3 to 5 MB. It remains one of the most frequently encountered units when managing personal digital storage.

The gigabit (Gbit) equals 1,000 megabits or one billion bits, used to describe high-speed network connections and data center interconnects. Modern fiber-optic internet plans often reach gigabit speeds, and enterprise networks rely on gigabit-level throughput for handling large volumes of traffic. One gigabit equals 125 megabytes, highlighting the practical difference between bits and bytes.