Use APKPure App
Get Transfer Calculator old version APK for Android
Calculate transfer and download speed.
See how long a file will take to download or transfer
Updated version from download Calculator
Example:
1 Mega Byte per second download speed.
1 Gigabyte file size
1MBps = 8 Mbps
Time to download = 1GB/8MbpS = 1024 Seconds(00H:17m:04s)
Real World results may very.