pixNmerge

Size Calculator

File Size:

File Type:

File Size Reference

JPEG (High Quality)

2.5 MB

Typical size for a 1920x1080 photo

JPEG (Medium Quality)

1.2 MB

Good quality for web use

PNG (24-bit)

6 MB

Lossless format, larger file size

PNG (8-bit)

2 MB

Indexed color, smaller than 24-bit

WebP (Lossy)

0.8 MB

Modern format, excellent compression

WebP (Lossless)

4.5 MB

Lossless WebP format

BMP

6.2 MB

Uncompressed bitmap format

GIF

1.5 MB

Supports animation, limited colors

File Size Tips

Image Optimization

Use WebP format for 25-35% smaller file sizes compared to JPEG while maintaining quality.

Document Compression

PDF files with images can be compressed significantly without losing readability.

Video Formats

MP4 with H.264 encoding provides the best balance of quality and file size for most uses.

Audio Quality

For most purposes, 128kbps MP3 provides good quality while keeping file sizes manageable.

File Size Calculator - Complete Guide

Understanding File Sizes

File size represents the amount of digital storage space a file occupies. Understanding file sizes is crucial for managing storage space, planning data transfers, estimating download times, and optimizing digital workflows. Our calculator helps you convert between different units and estimate file sizes for various formats.

📊 Storage Units Explained

Bytes (B): Basic unit of digital storage
Kilobytes (KB): 1,024 bytes - small text files
Megabytes (MB): 1,024 KB - photos, documents
Gigabytes (GB): 1,024 MB - videos, large files
Terabytes (TB): 1,024 GB - massive datasets

🔢 Binary vs Decimal

Binary (1024): Used by operating systems
Decimal (1000): Used by storage manufacturers
Our calculator: Uses binary system for accuracy
Why it matters: Explains storage capacity differences

Factors Affecting File Size

📸 Image Files

Resolution: Higher resolution (width × height) = larger file size. A 4K image has 4× more pixels than 1080p.

Color Depth: 24-bit color (16.7M colors) vs 8-bit (256 colors) significantly affects file size.

Compression: JPEG compression can reduce file size by 90% compared to uncompressed formats.

Format Type: PNG files are typically 2-5× larger than equivalent JPEG files.

🎬 Video Files

Resolution: 4K video files are about 4× larger than 1080p for the same duration.

Frame Rate: 60fps video is roughly twice the size of 30fps video.

Bitrate: Higher bitrate means better quality but larger files. Streaming uses 1-25 Mbps.

Codec: Modern codecs like H.265 can reduce file size by 50% vs older H.264.

🎵 Audio Files

Bitrate: 320kbps MP3 is about 2.5× larger than 128kbps MP3.

Sample Rate: 48kHz audio is about 1.1× larger than 44.1kHz for the same duration.

Channels: Stereo audio is exactly 2× the size of mono audio.

Format: Uncompressed WAV files are 10-20× larger than compressed MP3.

📄 Document Files

Content: Images and graphics in documents dramatically increase file size.

Pages: File size generally increases linearly with page count.

Format: PDF files are often smaller than equivalent Word documents.

Compression: Modern document formats use compression to reduce file size.

Typical File Size Estimates

📸 Images

Smartphone Photo (JPEG)2-8 MB

DSLR Photo (RAW)25-60 MB

Web Image (JPEG)50-500 KB

Icon/Logo (PNG)5-50 KB

🎬 Videos

1 min 1080p Video100-300 MB

1 min 4K Video400-1000 MB

Movie (1080p)4-8 GB

Short Clip (720p)10-50 MB

🎵 Audio

1 min MP3 (128kbps)1 MB

1 min MP3 (320kbps)2.5 MB

Song (4 min, 128kbps)4 MB

Podcast (1 hour)25-50 MB

📄 Documents

Text Document (10 pages)50-200 KB

PDF with Images1-10 MB

PowerPoint Presentation5-50 MB

Spreadsheet100 KB - 5 MB

Practical Applications

💾 Storage Planning

Calculate how many photos or videos you can store on your device. Plan storage upgrades based on your usage patterns and file types.

📤 Upload Estimates

Estimate upload times for your internet connection. Plan file sharing and backup schedules based on file sizes and bandwidth.

📧 Email Attachments

Check if files will fit within email attachment limits (usually 25MB). Determine when to use cloud sharing instead.

🌐 Web Optimization

Calculate page load times and optimize images for web use. Determine ideal file sizes for different connection speeds.

💿 Media Planning

Plan how much content fits on CDs (700MB), DVDs (4.7GB), or Blu-ray discs (25GB). Organize media collections efficiently.

☁️ Cloud Storage

Monitor cloud storage usage and plan subscription tiers. Calculate backup times and sync duration estimates.

File Size Optimization Tips

🖼️ Images

Use JPEG for photos, PNG for graphics with transparency
Resize images to required dimensions before saving
Adjust JPEG quality: 80-85% for web, 90-95% for print
Use modern formats like WebP for better compression
Remove metadata to save additional space

🎥 Videos

Choose appropriate resolution for your use case
Use modern codecs (H.265/HEVC) for better compression
Adjust bitrate based on content complexity
Consider frame rate: 30fps for web, 60fps for gaming
Remove or compress audio tracks if not needed

🎵 Audio

Use 128kbps MP3 for voice, 256kbps+ for music
Convert stereo to mono for voice recordings
Use AAC format for better quality at lower bitrates
Trim silence from beginning and end of recordings
Use compressed formats instead of WAV for distribution

📝 Documents

Compress images within documents
Use PDF/A for long-term archival
Remove unnecessary formatting and styles
Use document compression features when saving
Consider splitting large documents into chapters

Calculator Safety & Privacy

🔒

Local Calculations

All file size calculations are performed locally in your browser. No file data or calculation results are transmitted to our servers, ensuring complete privacy of your information.

🚫

No Data Storage

We don't store any calculation data, file information, or usage patterns. The calculator works entirely in your browser without saving any personal information or calculation history.