Game Download Time &
Bandwidth Calculator
Calculate exact download completion times, real-world MB/s disk write speeds, and data cap consumption for Steam, Epic, PS5, and Xbox.
Frequently Asked Questions
Why is my Steam download speed (MB/s) lower than my internet speed (Mbps)?
Internet providers advertise speeds in Megabits per second (Mbps), while Steam, Epic Games, and consoles measure download rates in Megabytes per second (MB/s). There are 8 bits in a single byte, so a 100 Mbps internet connection yields a theoretical maximum download speed of 12.5 MB/s.
Why does Steam download stop or slow down at 99%?
Steam compresses game files during transit to save bandwidth. While downloading, your CPU and SSD must concurrently decrypt and patch files onto your storage drive. If your processor or drive speed bottlenecks, Steam temporarily pauses download packets to let disk writing catch up.
How large are modern AAA game downloads in 2026?
Blockbuster AAA releases with 4K textures, uncompressed spatial audio, and cinematic cutscenes routinely exceed 120GB to 180GB (such as GTA 6, Call of Duty Warzone, and Baldur's Gate 3).