Mbps Calculator - Download Time, Speed and File Size

Your details

Size of the file you want to download or upload.
Your internet or network connection speed.
Real-world TCP/IP overhead slightly reduces usable throughput. 5% is a safe practical estimate for most connections.
Transfer timeFast broadband
1 min 20 s

Estimated time to complete the transfer at the given speed

Transfer time (seconds)80s
Speed in Mbps100Mbps
Speed in MB/s12.5MB/s
File size in bits8,000,000,000bits
File size in bytes1,000,000,000B
100 Mbps
< 1 Mbps (very slow)<11-10 Mbps (slow)1-1010-100 Mbps (standard)10-100100-500 Mbps (fast)100-500500 Mbps+ (gigabit)500+

Transfer completes in 1 min 20 s.

  • At 100.00 Mbps, your usable throughput is about 12.50 MB/s (dividing by 8 since there are 8 bits per byte).
  • This takes several minutes. Pausing other bandwidth-heavy activity can improve real-world speed.

Next stepRun a speed test at fast.com or speedtest.net to verify your actual connection speed before relying on this estimate.

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