Data Transfer Time Calculator
Calculate how long it takes to transfer a file over any connection speed.
Enter file size and connection speed to get transfer time.
Transfer Time
Data Transfer Time is calculated by dividing file size by connection speed.
Transfer Time = File Size / Transfer Speed
Important: Internet speeds are measured in bits per second (Mbps), but file sizes are in bytes (MB, GB). There are 8 bits in 1 byte.
Time (seconds) = File Size (MB) × 8 / Speed (Mbps)
Common connection speeds:
| Connection | Download Speed |
|---|---|
| 4G LTE | 10–50 Mbps |
| 5G | 100–1,000 Mbps |
| Cable internet | 50–500 Mbps |
| Fiber | 100–2,000 Mbps |
| Wi-Fi 5 (802.11ac) | 200–800 Mbps |
| Wi-Fi 6 (802.11ax) | 500–2,400 Mbps |
| USB 2.0 | 480 Mbps |
| USB 3.0 | 5,000 Mbps |
| USB 3.2 Gen 2 | 10,000 Mbps |
| Thunderbolt 4 | 40,000 Mbps |
Note: Actual speeds are typically 30–70% of theoretical maximums due to overhead and network conditions.