How to Use the Data Rate Converter
Enter a data rate in any unit (bps, Kbps, Mbps, Gbps, Tbps). All other units update instantly. Enter a file size to calculate download time at that speed.
Data Rate Converter Formula
SI: 1 Kbps = 1,000 bps; Download time = file_size_bits / speed_bpsExample Calculation
1 GB file at 100 Mbps:
1 GB = 8,000 Mb; Time = 8000 / 100
80 seconds download time
Frequently Asked Questions
Why is my download speed slower than advertised?
ISPs advertise in Megabits/sec (Mbps) but file sizes are in Megabytes (MB). 1 MB = 8 Mb. So 100 Mbps downloads at ~12.5 MB/s. Additionally, real-world speeds are limited by server speed, network congestion, and WiFi overhead.