Convert Bytes, KB, MB, GB, TB, and bits instantly
| Unit | = Bytes | Common Use |
|---|---|---|
| Petabyte (PB) | 10¹⁵ | Data centers, cloud |
| Terabyte (TB) | 10¹² | Hard drives |
| Gigabyte (GB) | 10⁹ | Files, RAM, phone storage |
| Megabyte (MB) | 10⁶ | Photos, documents |
| Kilobyte (KB) | 1,000 | Small files, text |
| Byte (B) | 1 | Single character |
| Bit | 0.125 | Network speed unit |
A data storage converter transforms digital storage measurements between different units used in computing and networking. Data is stored in bits and bytes, and as storage requirements have grown exponentially, larger units like kilobytes, megabytes, gigabytes, terabytes, and petabytes have become essential vocabulary in everyday digital life.
Understanding data units helps you compare file sizes, plan storage needs, evaluate internet plans, and understand device specifications. Calculator Expert's Data Storage Converter supports both SI (decimal) and binary (IEC) units.
Example: 500 MB to GB: 500 × 1,000,000 ÷ 1,000,000,000 = 0.5 GB
1 text character ≈ 1 Byte. 1 page Word document ≈ 30 KB. 1 MP3 song ≈ 4 MB. 1 HD photo ≈ 3-6 MB. 1 full HD movie ≈ 1.5-4 GB. 1 4K movie ≈ 50-100 GB. 1 modern video game ≈ 50-150 GB. These real-world examples help put abstract storage numbers in context.
Students learning about computers and networks. IT professionals calculating server storage requirements. Consumers choosing between phone storage options (64 GB vs 128 GB). Photographers calculating how many photos fit on an SD card. Network engineers converting bandwidth from Mbps to MBps. Content creators estimating video file sizes for upload.
For rough estimates using powers of 1,000: GB = MB ÷ 1,000. For binary (IEC): 1 GiB ≈ 1.074 GB — about 7% larger. This difference causes the "missing storage" you see on new drives. A 1 TB hard drive shows as about 931 GiB in your operating system due to this difference. Networking speed is in bits (Mbps) while file size is in bytes (MB) — so 100 Mbps internet downloads at ~12.5 MB/s.
A bit is the smallest unit of digital data (0 or 1). A byte = 8 bits. Internet speeds are typically quoted in bits (Mbps = Megabits per second), while storage is quoted in bytes (MB, GB). This means a "100 Mbps" connection downloads at about 12.5 MB/s — not 100 MB/s. Always check whether a value uses bits or bytes to avoid confusion.
Enter your data value, choose the source unit, select the target unit, and click Convert. The result shows the precise converted value. Useful for comparing storage specs, planning cloud storage, or understanding internet plan speeds.
This tool uses SI (decimal, base-1000) definitions for KB, MB, GB, TB, and IEC (binary, base-1024) definitions for KiB, MiB, GiB. The distinction matters for precision. Very large values (Exabytes, Zettabytes) are not included. This calculator cannot measure actual network transfer speeds — only storage size conversions.