Data Storage Converter - Bytes, KB, MB, GB, TB Calculator
💾 Computing & IT

Data Storage Converter

The ultimate tool for digital capacity. Convert accurately between Bits (b), Bytes (B), KB, MB, GB, TB, and PB. Understand the difference between internet speed and hard drive space.

Storage Engine

Enter data size to convert.

💾 Data Amount
📏 Conversion Standard

Used by Windows & RAM (JEDEC standard)

CONVERTED SIZE
1,024
Megabytes (MB)
Conversion Logic:
1 GB × 1024 = 1,024 MB
Bytes 1.07e9 B
📼
Kilobytes 1,048,576 KB
🐜
Bits 8.59e9 b

The "b" vs "B" Confusion

One of the most common tech mistakes is confusing Megabits (Mb) with Megabytes (MB). They sound similar but represent vastly different values.

💾
Byte (B) = Storage

Uppercase 'B'. Used for file sizes (HDD, SSD, RAM). 1 Byte = 8 Bits. Think of it as a single character of text.

🌐
Bit (b) = Speed

Lowercase 'b'. Used for internet speeds (100 Mbps). To get the download speed in MB/s, divide the Mbps by 8.

➗
The Factor of 8

A 1 Gigabit (Gb) internet connection does not download 1 Gigabyte (GB) per second. It downloads 125 Megabytes (MB) per second (1000 ÷ 8).

Binary vs. Decimal Standards

Standard Multiplier Used By
Binary (JEDEC/IEC) 1024 Windows OS, RAM, Computer Logic
Decimal (SI) 1000 Hard Drive Manufacturers, Mac OS, USB Drives
Example (1 TB) 1024 vs 1000 Windows sees 931 GB, Box says 1 TB

Real World Data Sizes

🎵

MP3 Song

Approx 3 - 5 MB per song. 1 Gigabyte can hold about 200-300 songs.

🎬

HD Movie

Approx 3 - 5 GB for a 1080p movie. 1 Terabyte can store about 250 HD movies.

📱

Smartphone Photo

Approx 2 - 4 MB per photo. A 128 GB phone can store over 30,000 photos.

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Frequently Asked Questions

Why does my 1TB drive only show 931GB?
Manufacturers use the decimal standard (1 TB = 1,000,000,000,000 bytes). Windows uses the binary standard (1 TB = 1,099,511,627,776 bytes). 1 Trillion / 1.099 Trillion ≈ 0.931 TB (or 931 GB).
What is bigger: MB or Mb?
MB (Megabyte) is bigger. 1 MB = 8 Mb (Megabits). Internet Service Providers use Mb (Megabits) to make speeds look faster (e.g., 100 Mbps).
How many MB in 1 GB?
In binary (Windows/RAM), 1 GB = 1024 MB. In decimal (Mac/HDD Marketing), 1 GB = 1000 MB.
What comes after Terabyte?
The sequence is Terabyte (TB), Petabyte (PB), Exabyte (EB), Zettabyte (ZB), and Yottabyte (YB).
How much data is a Petabyte?
1 Petabyte is 1024 Terabytes. It is enough to store about 11,000 4K movies or 500 billion pages of standard text.
Is a Kilobyte 1000 or 1024 bytes?
Technically, 1000 bytes is a Kilobyte (KB), and 1024 bytes is a Kibibyte (KiB). However, in common computer usage (Windows), "KB" is widely used to mean 1024 bytes.
How fast is 1 Gbps internet?
1 Gbps (Gigabit per second) translates to a theoretical maximum download speed of 125 MB/s. You could download a 5GB movie in about 40 seconds.
How many bits in a byte?
There are exactly 8 bits in 1 byte. This is the fundamental building block of digital storage.
What is the size of a Nibble?
A Nibble is 4 bits, or half a byte. It's a real technical term!
What is the difference between KB and KiB?
KB (Kilobyte) is strictly 1000 bytes (Decimal). KiB (Kibibyte) is strictly 1024 bytes (Binary). Windows calls 1024 bytes "KB" which causes the confusion.