b2KIT

File Size Calculator & Converter

Convert between bytes, KB, MB, GB, and TB with precise binary and decimal calculations.

Size Conversions

B104,857,600
KB102,400
MB100
GB0.09765625
TB0.00009537
PB0.00000009

Transfer Time Estimates

1 Mbps (2G)13 min 59 sec
10 Mbps (3G)1 min 24 sec
25 Mbps (4G)33.55 sec
50 Mbps (Home DSL)16.78 sec
100 Mbps (Cable)8.39 sec
300 Mbps (5G)2.80 sec
1 Gbps (Fiber)838.9 ms
10 Gbps (Data Center)83.9 ms

How to Use File Size Calculator & Converter

  1. 1

    Enter file details

    Input the dimensions, format, and quality of your file.

  2. 2

    View estimated size

    See the calculated file size in bytes, KB, MB, or GB.

  3. 3

    Compare formats

    Check how different formats affect the final file size.

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