Calculate file download and upload durations based on file size and internet bandwidth, featuring realistic network packet overhead and live transfer visualization.
Input the file size you plan to download or upload, or click one of the quick media presets.
Enter your connection bandwidth (Mbps, Gbps, or MB/s) or choose an internet package.
Review the estimated duration, effective MB/s transfer speed, and detailed time breakdown.
Compare transfer times side-by-side across various broadband tiers in the comparison table.
Network speeds are rated in bits (Megabits - Mb), while storage files are measured in bytes (Megabytes - MB). Since 1 Byte = 8 Bits, a 100 Mbps line delivers a theoretical maximum of 12.5 MB/s.
Real-world data transmission requires TCP/IP packet headers, acknowledgments, and occasional retransmissions, creating roughly 5-10% overhead above raw payload data.