Data Transfer Time Calculator

Transfer time from 1 MB to 1 PB across common link speeds.

How long to transfer data at a given network speed. Helps answer “should I ship a hard drive instead?”

Custom Calculation

Data Size

Link Speed

Transfer Time

2h 13m

Quick Reference Table

Data	10 Mbps	100 Mbps	1 Gbps	10 Gbps	25 Gbps	100 Gbps
1 MB	800 ms	80 ms	8 ms	800 μs	320 μs	80 μs
1 GB	13m 20s	1m 20s	8.0 sec	800 ms	320 ms	80 ms
100 GB	22h 13m	2h 13m	13m 20s	1m 20s	32.0 sec	8.0 sec
1 TB	9d 6h	22h 13m	2h 13m	13m 20s	5m 20s	1m 20s
10 TB	92d 14h	9d 6h	22h 13m	2h 13m	53m 20s	13m 20s
1 PB	9259d 6h	925d 22h	92d 14h	9d 6h	3d 17h	22h 13m

Note: Assumes full link utilization. Real-world throughput is typically 60-80% of theoretical max due to protocol overhead, congestion, and TCP windowing.