Free Online Data Size Converter

Convert between bytes, kilobytes, megabytes, gigabytes, and more. Supports both ...

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Updated

Conversions

8,000,000,000b
SI
1,000,000,000B
SI
1,000,000KB
SI
1,000MB
SI
1GB
SI
1.0000e-3TB
SI
1.0000e-6PB
SI
1.0000e-9EB
SI
976,562.5KiB
IEC
953.674316MiB
IEC
9.3132e-1GiB
IEC
9.0949e-4TiB
IEC
8.8818e-7PiB
IEC
8.6736e-10EiB
IEC

Total Bytes

1,000,000,000 bytes

SSL Secured
256-bit Encryption
Cloud Processing
Mobile Friendly

Converter Features

14 Unit Types - Bits, Bytes, KB, MB, GB, TB, PB, EB plus binary equivalents
Dual Standards - Both decimal (SI, base-1000) and binary (IEC, base-1024) units
Quick Presets - Common sizes like DVD, Blu-ray, and network speeds
Click to Copy - Copy any conversion result with a single click
Binary Toggle - Show or hide binary units for a cleaner view
Exact Bytes - See the precise total byte count for any input

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

1

Enter a Value

Type the number you want to convert, or use a quick preset for common sizes.

2

Select the Unit

Choose from decimal units (KB, MB, GB) or binary units (KiB, MiB, GiB) depending on your needs.

3

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.

Frequently Asked Questions

KB (Kilobyte) uses decimal prefixes (1 KB = 1,000 bytes), while KiB (Kibibyte) uses binary prefixes (1 KiB = 1,024 bytes). The binary system is often used by operating systems, while storage manufacturers typically use decimal units.
Hard drive manufacturers advertise using decimal units (1 GB = 1,000,000,000 bytes), but operating systems often display using binary units (1 GiB = 1,073,741,824 bytes). A '500 GB' drive actually has about 465 GiB usable space.
Use decimal units (KB, MB, GB) for data transfer rates and storage marketing. Use binary units (KiB, MiB, GiB) for RAM sizes and precise technical specifications. Most casual use cases work fine with decimal units.
Divide bits by 8 to get bytes. For example, 8 megabits (Mb) equals 1 megabyte (MB). Internet speeds are usually measured in bits per second (Mbps), while file sizes are in bytes.
Yes, this converter uses exact mathematical conversions. Decimal units use powers of 1000, binary units use powers of 1024. All calculations happen in your browser with full precision.

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