Ping in plain terms
Think of mailing a letter and waiting for the reply. Speed (Mbps) is how big a package you can send. Ping is how long the round trip takes, no matter the size. In a game, ping is the delay between pressing a button and the server knowing about it. On a call, it is the delay before the other person hears you.
The name comes from a network tool called ping that sends a small message and times the echo. People now use “ping” and “latency” to mean the same thing: round-trip delay.
Where the delay comes from
- Distance. Light in fiber covers about 200 km (125 miles) per millisecond. A server 1,000 miles away adds roughly 16 ms of round-trip delay before anything else.
- The first hop. WiFi, DSL, cable and mobile all add their own delay between your device and your provider. Fiber usually adds the least.
- Queues. When a connection is busy, packets wait in buffers in routers and modems. This is often the largest and most variable part. When it gets bad, it is called bufferbloat.
- Routing. Data rarely takes a straight line. It hops between networks, and some routes are longer than others.
- The server. A busy server takes a little longer to respond.
What good ping looks like
| Activity | Comfortable | Noticeable |
|---|---|---|
| Browsing | Under 100 ms | Pages hesitate before loading above that |
| Video calls | Under 100 ms round trip (Microsoft Teams target) | Above 150 ms people start talking over each other |
| Casual online games | Under 100 ms | Delay felt in fast moments |
| Competitive shooters, fighting games | Under 30–50 ms | Above 50 ms, many players notice |
| Streaming video | Hardly matters | Only affects how quickly playback starts |
Except for the Teams figure, these are widely used rules of thumb, not formal standards.
Ping vs. speed
A faster plan does not automatically mean lower ping. Upgrading from 100 Mbps to 1 Gbps on the same cable line often changes ping very little, because distance and the type of connection matter more. The exception is a connection that is full: if other traffic is filling it, more capacity leaves less waiting in queues.
How a speed test measures ping
Our test sends small requests that return almost no data, so the time measured is almost entirely delay. The browser records when each request starts and when the first byte of the reply arrives. We subtract the time the server reports spending on the request, take 21 samples on an idle connection, and report the median. We also measure ping during the download and upload phases to show how it changes under load. See the methodology for the details.