File Size Calculator

Calculate file sizes for different formats, convert between units, and compare storage requirements.

File Size Calculator

Calculate estimated file sizes based on type and parameters

Select File Type

Image

JPEG, PNG, GIF, etc.

Audio

MP3, WAV, FLAC, etc.

Video

MP4, AVI, MKV, etc.

Document

PDF, DOC, TXT, etc.

Image Format JPEG PNG GIF BMP TIFF WebP

Resolution 480p (854×480) 720p (1280×720) 1080p (1920×1080) 1440p (2560×1440) 4K (3840×2160) 8K (7680×4320) Custom Resolution

Width

px

Height

px

Quality

%

Low (1%) High (100%)

Number of Images

1 100

Audio Format MP3 WAV FLAC AAC OGG Vorbis

Duration

h

m

s

Bitrate

kbps

32 kbps 320 kbps

Channels Mono (1 channel) Stereo (2 channels) 5.1 Surround 7.1 Surround

Video Format MP4 (H.264) AVI MKV MOV WebM

Resolution 480p (854×480) 720p (1280×720) 1080p (1920×1080) 1440p (2560×1440) 4K (3840×2160) 8K (7680×4320)

Duration

h

m

s

Frame Rate 24 fps 25 fps 30 fps 48 fps 50 fps 60 fps 120 fps

Video Bitrate

kbps

500 kbps 20,000 kbps

Audio in Video No Audio Low Quality (96 kbps) Medium Quality (128 kbps) High Quality (192 kbps) Very High Quality (320 kbps)

Document Format PDF DOCX (Word) PPTX (PowerPoint) XLSX (Excel) TXT (Plain Text)

Number of Pages

1 1000

Images in Document

0 100

Compression Level Low Compression Medium Compression High Compression

Unit Converter

Convert between different file size units

Value

Bytes Kilobytes (KB) Megabytes (MB) Gigabytes (GB) Terabytes (TB) Petabytes (PB)

Convert To Bytes Kilobytes (KB) Megabytes (MB) Gigabytes (GB) Terabytes (TB) Petabytes (PB)

1 MB = 0.001 GB

Storage Comparison

Compare file sizes with common storage devices

File Size

Kilobytes (KB) Megabytes (MB) Gigabytes (GB) Terabytes (TB)

Storage Capacity Comparison

689

Floppy Disks (1.44MB)

14

CDs (700MB)

2

DVDs (4.7GB)

0.1

USB Drives (16GB)

File Size Analysis

4.2

MB

4,200 KB

4.2 MB

0.0042 GB

Size Breakdown Amount

Base File Size

3.5 MB

Compression

-1.2 MB

Multiple Files

+1.9 MB

Total Estimated Size 4.2 MB

Storage Requirements

0.02%

of 64GB Smartphone

0.004%

of 1TB Laptop

0.0004%

of 1TB Cloud Storage

0.000004%

of 100TB Server

Quick Conversion

Bytes KB MB GB TB

Bytes KB MB GB TB

4.2 MB = 0.0042 GB

Optimization Tips

• Consider using WebP format for images to reduce file size by 25-35% compared to JPEG
• For documents, PDF compression can reduce file size while maintaining quality
• Audio files can be optimized by adjusting bitrate based on your quality requirements
• Video files benefit from modern codecs like H.265 which offer better compression

How It Works

This calculator estimates file sizes based on format, quality settings, and other parameters. The calculations use average compression ratios and bitrates for each file type.

Actual file sizes may vary based on content complexity and specific encoding settings.

Common File Sizes

File Type	Typical Size	Example
Web Page	1-2 MB	Average website
High-Res Photo	3-6 MB	12MP JPEG
3-min Song	3-6 MB	128kbps MP3
1-hr Podcast	30-60 MB	MP3 audio
HD Movie	1-3 GB	1080p video
4K Movie	10-20 GB	Ultra HD video

Size Units Explained

Byte (B): Basic unit of digital information (8 bits)

Kilobyte (KB): 1,024 bytes

Megabyte (MB): 1,024 kilobytes (1,048,576 bytes)

Gigabyte (GB): 1,024 megabytes (1,073,741,824 bytes)

Terabyte (TB): 1,024 gigabytes (1,099,511,627,776 bytes)

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