网络工程师
Download, Upload and Backup Time Calculator
Use this download, upload and backup time calculator entirely in your browser.
100 GB at 300 Mbps.
Effective rate: 3,375 MB/s at 90% efficiency.
Calculations happen locally in your browser.
Download-time reference table
The table uses decimal gigabytes and ideal line rate. Use the calculator's efficiency field for a more conservative download, upload, NAS, or cloud-transfer estimate.
| File | 100 Mbps | 300 Mbps | 1 Gbps |
|---|---|---|---|
| 1 GB | 1 min 20 sec | 27 sec | 8 sec |
| 10 GB | 13 min 20 sec | 4 min 27 sec | 1 min 20 sec |
| 100 GB | 2 h 13 min | 44 min 27 sec | 13 min 20 sec |
Upload speed is often lower than download speed on asymmetric connections. Enter the measured or contracted upload rate when planning a cloud or off-site backup.
如何使用此结果？ calculator
- 输入标注值并查看实时结果。
- 查看实时结果，并在需要共享时使用“复制结果”功能。
如何 calculation works
The file size is converted to megabits and divided by the effective megabits per second after the selected efficiency allowance.
公式
The file size is converted to megabits and divided by the effective megabits per second after the selected efficiency allowance.
分步指南 calculation
- 输入标注值并查看实时结果。
- The file size is converted to megabits and divided by the effective megabits per second after the selected efficiency allowance.
- 检查显示的结果，如有需要，请复制。
示例
100 GB over 300 Mbps at 90% efficiency takes about 49 minutes 23 seconds.
风险提示
常见问题解答
此工具是否会将我的输入发送到其他地方？
否。交互式计算在您的浏览器中运行，本网站不会将工具输入提交到后端。
我应该如何使用结果？
检查输入的单位和值是否符合实际情况，尤其要注意日期、断点和舍入方式。