Free Online Data Size Converter
Convert between bytes, kilobytes, megabytes, gigabytes, and more. Supports both ...Convert between bytes, kilobytes, megabytes, gigabytes, and more. Supports both decimal (SI) and binary (IEC) units with instant conversions.
Conversions
Total Bytes
1,000,000,000 bytes
Converter Features
Why Use Free Online Data Size Converter?
All Units Supported
Convert between bits, bytes, KB, MB, GB, TB, PB, EB and their binary equivalents (KiB, MiB, GiB, etc.).
SI and IEC Standards
See both decimal (base-1000) and binary (base-1024) conversions side by side.
Quick Presets
One-click presets for common sizes like 1 GB, 500 MB, DVD, Blu-ray, and 100 Mbps.
Click to Copy
Click any conversion result to instantly copy it to your clipboard.
Total Bytes Display
See the exact total byte count for any input value.
100% Private
All calculations happen in your browser. No data is sent to any server.
Common Uses for Data Size Converter
Storage Planning
Calculate how much storage you need for files, photos, or video projects.
Network Speed
Convert between bits per second (bps) and bytes to understand real download speeds.
Development
Verify file size limits, API payload sizes, and database storage requirements.
Server Capacity
Plan server storage and bandwidth allocation for web applications.
How It Works
Enter a Value
Type the number you want to convert, or use a quick preset for common sizes.
Select the Unit
Choose from decimal units (KB, MB, GB) or binary units (KiB, MiB, GiB) depending on your needs.
View All Conversions
See instant conversions to all other units. Click any result to copy it to your clipboard.
Tips & Information
Internet Speed Tip
Internet speeds are measured in bits (Mbps), not bytes. Divide your speed by 8 to get actual download speed in MB/s.
Storage Shopping
When buying storage, remember that advertised GB (decimal) differs from what your OS shows in GiB (binary). A 1 TB drive shows as ~931 GiB.
RAM vs Storage
RAM is always measured in binary units (GiB) even when marketed as GB. Storage drives use decimal units for marketing.