File Size Calculator

Convert storage units instantly or calculate how long it will take to download a file.

Did you know?

In binary computing, 1 KB = 1024 Bytes. Storage manufacturers often use 1 KB = 1000 Bytes (Decimal). This tool uses the standard 1024 (Binary) system.

Conversion Results

Instant Conversion

Convert between Bytes, KB, MB, GB, TB, and PB instantly with high precision.

Download Estimator

Know exactly how long a download will take based on your internet plan.

Binary Standard

We use the standard 1024 conversion method used by Operating Systems.

Understanding File Sizes

In the digital world, data is stored in bits and bytes. Understanding these units is crucial for managing storage and bandwidth.

Common Units:

  • Bit (b): The smallest unit of data (0 or 1).
  • Byte (B): 8 bits. Usually stores one character of text.
  • Kilobyte (KB): 1,024 Bytes. Small text files or low-res images.
  • Megabyte (MB): 1,024 KB. MP3 songs (3-5 MB) or photos.
  • Gigabyte (GB): 1,024 MB. HD movies (1-4 GB) or modern games.
  • Terabyte (TB): 1,024 GB. Hard drives and cloud storage.

Mbps vs MB/s

Internet speeds are advertised in Megabits per second (Mbps), while file downloads are shown in Megabytes per second (MB/s).
Since 1 Byte = 8 bits, you need to divide your internet speed by 8 to get your actual download speed.
Example: 100 Mbps connection = 12.5 MB/s max download speed.

Frequently Asked Questions

How many MB are in 1 GB?

In the binary system (used by operating systems), 1 GB equals 1024 MB. In the decimal system (used by hardware manufacturers), 1 GB is treated as 1000 MB. This tool uses the binary standard (1024).

What is the difference between Mbps and MB/s?

Mbps stands for Megabits per second (Internet Speed), while MB/s stands for Megabytes per second (File Size). Since 1 Byte = 8 bits, you need to divide your Mbps speed by 8 to get the download speed in MB/s.

Why does my download take longer than estimated?

The calculated time is a theoretical minimum based on your full bandwidth. Real-world speeds are affected by network congestion, server limits, Wi-Fi interference, and protocol overheads.

What are TB and PB?

TB stands for Terabyte (1024 GB) and PB stands for Petabyte (1024 TB). These units are typically used for large-scale server storage, cloud data centers, and backups.

Is this tool free to use?

Yes, iLikeTOOL is completely free. You can perform unlimited conversions and calculations without any registration or hidden fees.

Does this tool work offline?

Yes! Once the page is loaded, all calculations happen instantly in your browser using JavaScript. No data is sent to any server.