File Size Calculator

Convert between different file size units instantly. Calculate storage requirements and estimate transfer times for your files.

Calculate File Size

Understanding File Sizes

📊Common File Sizes

  • Text Document: 10-100 KB
  • High-res Photo: 2-10 MB
  • Music File (MP3): 3-5 MB
  • HD Video (1 min): 50-100 MB
  • 4K Video (1 min): 200-400 MB
  • Movie (HD): 1-4 GB

💾Storage Capacity

  • USB Flash Drive: 8-128 GB
  • DVD: 4.7 GB
  • Blu-ray: 25-50 GB
  • Laptop SSD: 256 GB - 2 TB
  • External HDD: 1-8 TB
  • Cloud Storage: 5 GB - Unlimited

Binary vs Decimal Units

This calculator uses binary units (1024-based) which are standard in computing:

Binary (Computing)

  • 1 KB1,024 bytes
  • 1 MB1,024 KB
  • 1 GB1,024 MB
  • 1 TB1,024 GB

Decimal (Marketing)

  • 1 KB1,000 bytes
  • 1 MB1,000 KB
  • 1 GB1,000 MB
  • 1 TB1,000 GB

Need to Transfer Large Files?

Use our secure file sharing service to send files of any size without worrying about email attachment limits or cloud storage restrictions.