Transfer Time Estimation
Download Time Calculator — Mbps to GB
Figuring out how long that massive game, 4K movie, or software patch will take to transfer? Input your file size and network speed below. For a full breakdown of download times across game sizes, Windows updates, and streaming — including a reference table at every common speed — see our download time guide. For simple scale conversions, visit our main converter page.
GB
Mbps
Theoretical Time: 1 hr 6 min
Real-World (~90% Efficiency): 1 hr 14 min
Most networks lose 8-12% of their speed to overhead (TCP packaging, encryption, routing). Our real-world calculator accounts for ~90% transmission efficiency.