File Size and Download Time

File Size and Download Time is a simple utility for converting storage units and estimating how long a download will take.

Convert file sizes instantly across common units:
- Bytes (B), KB, MB, GB, TB
- View all converted values in one table
- Choose Base 1024 (binary) or Base 1000 (decimal) for accurate results

Estimate download time with flexible speed units:
- Enter file size and connection speed
- Supports bps, Kbps, Mbps, Gbps and B/s, KB/s, MB/s, GB/s
- See the final time plus a breakdown in seconds, minutes, hours, and days

Designed to be clean and distraction-free:
- Fast, lightweight UI
- No sign-in required
- Works offline and does not collect personal data