How to Convert Digital Storage Units
Convert between different digital storage units instantly. Our converter handles bytes, kilobytes, megabytes, gigabytes, terabytes, and more-essential for understanding file sizes, storage capacity, and data requirements.
Understanding Digital Storage Units
Digital storage is measured in bytes. Each byte contains 8 bits. Storage units increase by factors of 1,024 (binary) or 1,000 (decimal). KB, MB, GB, and TB are common units, with each being roughly 1,000 times larger than the previous.
Storage Unit Relationships
Binary (computing): 1 KB = 1,024 bytes, 1 MB = 1,024 KB, 1 GB = 1,024 MB, 1 TB = 1,024 GB. Decimal (marketing): uses 1,000 instead of 1,024.
Example:
A 500 GB hard drive = 500 × 1,024 = 512,000 MB = 524,288,000 KB. A 4.7 GB DVD can store about 4,700 MB of data.
Common Use Cases
Real-world applications for this calculator
File Management
Understand file sizes to manage storage, estimate download times, or check email attachment limits.
Storage Shopping
Compare storage devices and understand capacity when buying hard drives, SSDs, or cloud storage.
Data Planning
Calculate storage needs for photos, videos, and backups based on file sizes.
Tips
- Each unit is roughly 1,000× the previous: KB → MB → GB → TB.
- Smartphone photos: ~3-5 MB each, so 1 GB holds about 200-300 photos.
- Streaming video uses about 1-3 GB per hour in HD, 7 GB+ per hour in 4K.
Frequently Asked Questions
How many megabytes are in a gigabyte?
There are 1,024 megabytes in a gigabyte (binary/computing). In decimal notation (used in marketing), it's exactly 1,000 MB per GB.
Why does my 1 TB drive show less than 1 TB of space?
Drive manufacturers use decimal (1 TB = 1,000 GB), while computers use binary (1 TB = 1,024 GB). A "1 TB" drive shows as about 931 GB in your operating system.
What is the difference between MB and Mb?
MB (megabyte) measures storage, while Mb (megabit) measures data transfer. There are 8 bits in a byte, so 1 MB = 8 Mb. Internet speeds use Mbps (megabits per second).
How much storage do I need for photos and videos?
A high-quality photo is typically 3-5 MB. A minute of 1080p video is about 130 MB, and 4K video is about 375 MB per minute. Plan storage accordingly.