Internet 速度 test
A quick internet speed test: download 和 Mbps 的 upload speed、plus latency、jitter, measured against Cloudflare’s public test servers.
The test uses about 35 MB data on Cloudflare’s public speed servers. Close other downloads件the most accurate 结果. Mobile 数据 charges may apply.
关于Internet 速度 test
A quick internet speed test: download 和 Mbps 的 upload speed、plus latency、jitter, measured against Cloudflare’s public test servers.
属于 SmartCalcy“数据与网络”板块。它在你的浏览器中运行，无需账号，使用你自己的货币和单位（可在页面顶部更改），所给结果仅为估算、仅供参考，因此在依赖结果之前请查阅官方指引。
如何使用Internet 速度 test
它计算什么，何时使用
Measures the download 速度、upload 速度, latency、jitter your connection from your browser, using Cloudflare’s public speed servers. It gives a quick check whether your broadband or mobile data 是 performing as expected.
使用步骤
- 关闭 other downloads、streams、cloud backups.
- Press “开始 test”.
- Wait while latency、download、upload are measured, about 15 至 40 seconds.
- Read the 结果, 或 press “Test again”.
各输入项的含义
- 开始 test – Begins the measurement. There 是 无 至 enter.
如何阅读结果
- Download – megabits 每 second (Mbps). 的 How fast 数据 arrives,
- Upload – Mbps. 的 How fast your device 罐 send 数据,
- Latency (ping) – The 最短 round-trip 时间 至 毫秒. 的 the server,
- Jitter – 毫秒. 的 How much latency varies between 计量单位,
公式
Mbps = bytes × 8 ÷ seconds ÷ 1,000,000. The test downloads files 的 速度 5、10、15 MB 和 uploads files 1、2、3 MB、和 reports the best run. Latency is the lowest of eight small requests,、jitter 是 the average difference between consecutive latencies.
计算示例
1.2 seconds 的 Downloading 15 MB 是 15 × 8 ÷ 1.2 = 100 Mbps.
假设与局限
- The test uses roughly 35 MB 数据, which matters on a mobile 数据 plan.
- Results are 至 one server near you 和 罐 differ 从 other 速度 tests.
- Browser、Wi-Fi quality、other devices on your 网络 all affect the 结果.
常见错误
- Testing over Wi-Fi 从 a far 房间 和 blaming the provider.
- Leaving video calls 或 downloads running during the test.
- Mixing up megabits (Mbps) with megabytes. Divide by 8 至 得 megabytes 每 second.
常见问题
What 是 a good internet 速度?
For one person、25 Mbps 是 enough件HD streaming、video calls. Households with several users usually want 100 Mbps 或 more.
Why 是 my 速度 lower than my plan?
Plans quote the best case on the line. Wi-Fi、other devices, the time day、the test server all reduce 结果.
What 是 jitter?
latency. High jitter makes calls 的 Variation 和 games stutter even when speed 是 high.
How much 数据 does the test use?
About 35 MB.
Why did the test fail?
An ad blocker、减 firewall 或 lost connection can block the test servers. Turn the blocker件this page、try again.
相关工具
结果
- Download
- –
- Upload
- –
- Latency (ping)
- –
- Jitter
- –