# Sydney, Australia → Taipei, Taiwan RTT

🇦🇺 **Sydney, Australia (SYD)** → 🇹🇼 **Taipei, Taiwan (TPE)**

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

In the 2026-08-16T04:07:28Z round, ICMP echo probes from Sydney to Taipei averaged 131.7 ms over 50 samples, with a minimum of 126.36 ms and a maximum of 151.94 ms.

The 4.46 ms standard deviation and 3.58 ms jitter indicate moderate variability, while zero packet loss was recorded across the sample. The route spans 7,237.6 km and measures 1.86 times the theoretical fiber floor, an effective fiber efficiency of about 53.8%.

It ranked fourth among the 19 outbound routes in the same round; its standard deviation is about 3.4% of its average, just above the network-wide median route variability of 3.28%. This positions the Sydney-Taipei route as a steady, higher-latency reference within the same measurement set, with no dropped probes despite the longer distance.

## Latency Summary

| Metric               | Value                                                      |
| -------------------- | ---------------------------------------------------------- |
| RTT                  | **131.7 ms**                                               |
| Jitter               | **3.58 ms**                                                |
| Packet Loss          | **0%**                                                     |
| Standard Fiber Floor | **70.88 ms**                                               |
| Fiber Efficiency     | **53.8%**                                                  |
| Latency Tier         | Good                                                       |
| 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 [Sydney](https://www.geonames.org/2147714) (-33.86785, 151.20732) and [Taipei](https://www.geonames.org/1668341) (25.05306, 121.52639). It does not disclose either facility address.

| Physical Reference                            | Value          |
| --------------------------------------------- | -------------- |
| WGS-84 geodesic distance                      | **7,237.6 km** |
| Vacuum RTT floor                              | **48.28 ms**   |
| Standard fiber RTT floor ($n_g=1.4679$)       | **70.88 ms**   |
| Low-latency fiber material floor              | **70.59 ms**   |
| Engineering floor (5% path allowance)         | **74.43 ms**   |
| Research 1.33× mapped-fiber reference         | **94.26 ms**   |
| Estimated unamplified path loss               | **1519.9 dB**  |
| Transparent optical spans / inline amplifiers | **95 / 94**    |
| Published RTT inflation over fiber floor      | **1.86×**      |

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        | **126.36 ms** |
| Average RTT        | **131.7 ms**  |
| Maximum RTT        | **151.94 ms** |
| Standard deviation | **4.46 ms**   |
| Stdev / average    | **3.4%**      |

## Route Context

* Departure PoP: [Sydney (SYD)](/docs/network/latency/syd-sydney)
* Destination PoP: [Taipei (TPE)](/docs/network/latency/tpe-taipei)
* 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**

* [Taipei to Sydney latency and RTT](/docs/network/latency/pairs/tpe-syd-rtt) — 133.2 ms

**Fastest routes departing Sydney (SYD)**

* [Sydney to Melbourne latency and RTT](/docs/network/latency/pairs/syd-mel-rtt) — 9.8 ms
* [Sydney to Singapore latency and RTT](/docs/network/latency/pairs/syd-sin-rtt) — 94.5 ms
* [Sydney to Tokyo latency and RTT](/docs/network/latency/pairs/syd-tyo-rtt) — 101.3 ms
* [Sydney to Hong Kong latency and RTT](/docs/network/latency/pairs/syd-hkg-rtt) — 135.7 ms
* [Sydney to Los Angeles latency and RTT](/docs/network/latency/pairs/syd-lax-rtt) — 136.5 ms

**Fastest routes arriving at Taipei (TPE)**

* [Hong Kong to Taipei latency and RTT](/docs/network/latency/pairs/hkg-tpe-rtt) — 14.7 ms
* [Tokyo to Taipei latency and RTT](/docs/network/latency/pairs/tyo-tpe-rtt) — 32.3 ms
* [Singapore to Taipei latency and RTT](/docs/network/latency/pairs/sin-tpe-rtt) — 45.8 ms
* [Seattle to Taipei latency and RTT](/docs/network/latency/pairs/sea-tpe-rtt) — 114.7 ms
* [Moscow to Taipei latency and RTT](/docs/network/latency/pairs/mow-tpe-rtt) — 132.1 ms

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

* [Melbourne to Sydney latency and RTT](/docs/network/latency/pairs/mel-syd-rtt) — 9.8 ms
* [Taipei to Hong Kong latency and RTT](/docs/network/latency/pairs/tpe-hkg-rtt) — 15.5 ms
* [Singapore to Hong Kong latency and RTT](/docs/network/latency/pairs/sin-hkg-rtt) — 30.8 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/syd-tpe.pings.{csv,json,yaml}`. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Sydney → Taipei 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/syd-tpe-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.