Bytes to MB Converter

Computer Science & Multimedia Storage Architecture (IEC 80000-13)

Digital file sizes are calculated under two standards:

• **

• Binary IEC Standard**:

1 MiB = 2^20 Bytes = 1,048,576 Bytes, MiB = Bytes1,048,576

• **

• Decimal SI Standard**:

1 MB = 10^6 Bytes = 1,000,000 Bytes, MB = Bytes1,000,000

• **

• Megabits for Network Transmission**:

Megabits (Mb) = Bytes × 81,000,000

How to Use This Calculator

Enter your Number of Bytes (B) (e.g. 1048576), Digital Storage Standard — choose from Binary IEC / OS Display (1 MiB = 2²⁰ = 1,048,576 Bytes - Windows/RAM), Decimal SI / Media (1 MB = 10⁶ = 1,000,000 Bytes - Telecommunications), and Media & File Benchmark — choose from Custom Byte Quantity, 1,048,576 Bytes (Exact 1.0 MiB Binary / 1.0486 MB SI), 1,000,000 Bytes (Exact 1.0 MB SI / 0.9537 MiB Binary). Results update instantly as you type — adjust any value to compare scenarios.

The Formula

SI Decimal: 10^6 = 1,000,000 Bytes

IEC Binary: 2^20 = 1,048,576 Bytes

Worked Example

A 5 MB high-resolution image file containing 5,242,880 bytes occupies exactly 5.0000 MiB in operating system memory.

Understanding Your Result

Unit conversion precision: round to the same number of significant figures as your original measurement. Converting 6 feet to meters gives 1.8288 m — but if your measurement was approximate (±1 inch), expressing more than 2 decimal places is false precision. For international trade and technical specifications, SI units (meters, kilograms, liters) are the standard. US customary units (feet, pounds, gallons) differ from Imperial UK units: 1 US gallon = 3.785 L vs. 1 UK gallon = 4.546 L.