# Taipei, Taiwan → Hong Kong RTT

🇹🇼 **Taipei, Taiwan (TPE)** → 🇭🇰 **Hong Kong (HKG)**

Measurement round: `2026-08-16T04:07:28Z`.

Over 50 ICMP probes in measurement round 2026-08-16T04:07:28Z, the Taipei-to-Hong Kong path averaged **15.5 ms**, with a minimum of **15.09 ms** and a maximum of **17.58 ms**. The **0.41 ms** standard deviation and **0.34 ms** jitter show a very tight latency envelope, and the **0%** packet loss means every probe received a reply.

The route ranks first among the 19 outbound paths measured from Taipei in this round. That top position is supported by an average only **1.95 times** the theoretical fiber floor for the 810 km great-circle distance; the measured fiber efficiency is **51.2%**.

The network-wide median variability across the same 19-route outbound set is **3.28%** relative to average latency. This route's standard deviation is about **2.6%** of its average, so it is not only fast but also steadier than the typical route in the set. For a short Asia-Pacific path like this one, the main takeaway is consistent ultra-low latency with zero loss.

## Latency Summary

| Metric               | Value                                                      |
| -------------------- | ---------------------------------------------------------- |
| RTT                  | **15.5 ms**                                                |
| Jitter               | **0.34 ms**                                                |
| Packet Loss          | **0%**                                                     |
| Standard Fiber Floor | **7.94 ms**                                                |
| Fiber Efficiency     | **51.2%**                                                  |
| Latency Tier         | Ultra-Low                                                  |
| Source Region        | [Asia Pacific](/docs/network/latency/regions/asia-pacific) |
| Destination Region   | [Asia Pacific](/docs/network/latency/regions/asia-pacific) |

## Ping Measurement Series

The chart below renders the 50-sample ICMP echo measurement round for this route; an accessible table of every sample is included with the chart.

## Download This Route's Data

This route's measurement round is published as open data (CC BY 4.0) in CSV, JSON, and YAML. See [About This Measurement](#about-this-measurement) for citation guidance.

## Theoretical Fiber Latency

The public physical reference uses the GeoNames city centres for [Taipei](https://www.geonames.org/1668341) (25.05306, 121.52639) and [Hong Kong](https://www.geonames.org/1819729) (22.27832, 114.17469). It does not disclose either facility address.

| Physical Reference                            | Value        |
| --------------------------------------------- | ------------ |
| WGS-84 geodesic distance                      | **810.3 km** |
| Vacuum RTT floor                              | **5.41 ms**  |
| Standard fiber RTT floor ($n_g=1.4679$)       | **7.94 ms**  |
| Low-latency fiber material floor              | **7.9 ms**   |
| Engineering floor (5% path allowance)         | **8.33 ms**  |
| Research 1.33× mapped-fiber reference         | **10.55 ms** |
| Estimated unamplified path loss               | **170.2 dB** |
| Transparent optical spans / inline amplifiers | **11 / 10**  |
| Published RTT inflation over fiber floor      | **1.95×**    |

Attenuation is used to estimate the number of 80 km optical spans; it does not directly slow light. See the full [theoretical fiber latency, GeoNames, attenuation, and amplifier methodology](/docs/network/latency/theoretical-fiber-latency).

## Stability & Trend

The current measurement round (2026-08-16T04:07:28Z) collected 50 ICMP echo samples on this route. Distribution statistics from that round:

| Round Statistic    | Value        |
| ------------------ | ------------ |
| Minimum RTT        | **15.09 ms** |
| Average RTT        | **15.5 ms**  |
| Maximum RTT        | **17.58 ms** |
| Standard deviation | **0.41 ms**  |
| Stdev / average    | **2.6%**     |

## Route Context

* Departure PoP: [Taipei (TPE)](/docs/network/latency/tpe-taipei)
* Destination PoP: [Hong Kong (HKG)](/docs/network/latency/hkg-hong-kong)
* Region overview: [Asia Pacific](/docs/network/latency/regions/asia-pacific) → [Asia Pacific](/docs/network/latency/regions/asia-pacific)
* Full global matrix: [Backbone Latency Matrix](/docs/network/latency)
* Physical methodology: [Theoretical Fiber Latency](/docs/network/latency/theoretical-fiber-latency)

## Related City-Pair Routes

**Reverse direction**

* [Hong Kong to Taipei latency and RTT](/docs/network/latency/pairs/hkg-tpe-rtt) — 14.7 ms

**Fastest routes departing Taipei (TPE)**

* [Taipei to Tokyo latency and RTT](/docs/network/latency/pairs/tpe-tyo-rtt) — 31.9 ms
* [Taipei to Singapore latency and RTT](/docs/network/latency/pairs/tpe-sin-rtt) — 44.3 ms
* [Taipei to Seattle latency and RTT](/docs/network/latency/pairs/tpe-sea-rtt) — 115.8 ms
* [Taipei to Los Angeles latency and RTT](/docs/network/latency/pairs/tpe-lax-rtt) — 132 ms
* [Taipei to Moscow latency and RTT](/docs/network/latency/pairs/tpe-mow-rtt) — 132.7 ms

**Fastest routes arriving at Hong Kong (HKG)**

* [Singapore to Hong Kong latency and RTT](/docs/network/latency/pairs/sin-hkg-rtt) — 30.8 ms
* [Tokyo to Hong Kong latency and RTT](/docs/network/latency/pairs/tyo-hkg-rtt) — 44.8 ms
* [Moscow to Hong Kong latency and RTT](/docs/network/latency/pairs/mow-hkg-rtt) — 118.6 ms
* [Seattle to Hong Kong latency and RTT](/docs/network/latency/pairs/sea-hkg-rtt) — 130.4 ms
* [Sydney to Hong Kong latency and RTT](/docs/network/latency/pairs/syd-hkg-rtt) — 135.7 ms

**Same corridor (Asia Pacific → Asia Pacific)**

* [Melbourne to Sydney latency and RTT](/docs/network/latency/pairs/mel-syd-rtt) — 9.8 ms
* [Sydney to Melbourne latency and RTT](/docs/network/latency/pairs/syd-mel-rtt) — 9.8 ms
* [Hong Kong to Singapore latency and RTT](/docs/network/latency/pairs/hkg-sin-rtt) — 31.5 ms

## About This Measurement

Published RTT reflects best-case backbone path behavior measured with ICMP echo probes between PoPs. End-user latency also depends on local access networks, congestion, routing policy, and traffic engineering. None of these values is an SLA.

The measurement round behind this page is published as open data under **CC BY 4.0** in the [Hats Network latency dataset](/opendata/latency/). Per-pair files are available at `/opendata/latency/latest/pairs/tpe-hkg.pings.{csv,json,yaml}`. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Taipei → Hong Kong round 2026-08-16T04:07:28Z, CC BY 4.0".

***

*Data auto-generated on August 16, 2026. Explore the [full interactive latency matrix](/docs/network/latency) or browse more [city-pair routes](/docs/network/latency/pairs).*

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## License and attribution

- **Canonical source:** [View the human-readable HTML page](https://hatsnet.io/docs/network/latency/pairs/tpe-hkg-rtt).
- **Original documentation:** © Hats Network Inc., licensed under [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/).
- **Public latency data:** © Hats Network Inc., licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).
- **Full terms:** [Content and Data License](https://hatsnet.io/docs/legal/content-and-data-license) — includes attribution requirements, third-party material, trademarks, source code and other exclusions.