File Size Unit Converter

Convert file sizes between Bytes, KB, MB, GB, TB, PB (Decimal 1000 and Binary 1024 KiB/MiB).

Processing Architecture: Client-Side (Processed locally in your web browser with zero server uploads)

How to Use File Size Unit Converter

  1. Step 1: Input Size & Unit

    Enter numeric value and select starting unit (e.g. 500 MB).

  2. Step 2: View Conversions

    See instantaneous table of Decimal (1,000) and Binary (1,024) equivalents.

Key Features & Capabilities

  • Simultaneous decimal (KB, MB, GB) and binary (KiB, MiB, GiB) readout
  • Estimates file download time across 4G, 5G, and Gigabit Fiber speeds
  • Interactive slider for fast visual scaling

Frequently Asked Questions

Why is a 1 TB drive not shown as 1 TB in my computer?

The drive may be marketed using decimal TB while the software is displaying the same byte count using a binary unit such as GiB.

Are MB and MiB the same?

No. MB is a decimal unit and MiB is a binary unit.

Why does Mbps look much larger than MB/s?

Mbps measures megabits per second, while MB/s measures megabytes per second. Since 8 bits make a byte, the numerical values are not directly interchangeable.

Which unit should I use for an upload limit?

Use the same unit shown by the service. If the limit is ambiguous, convert the value to bytes so the comparison is unambiguous.

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