# Marseille, France → Sydney, Australia RTT

🇫🇷 **Marseille, France (MRS)** → 🇦🇺 **Sydney, Australia (SYD)**

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

The Marseille-to-Sydney ICMP echo RTT path averaged 240.6 ms over 50 samples in round 2026-08-16T04:07:28Z, with a minimum of 231.48 ms and a maximum of 266.22 ms. The route completed with zero packet loss, and the 6.59 ms jitter and 8.19 ms standard deviation show timing stayed relatively consistent.

Marseille, France and Sydney, Australia are connected by a great-circle distance of 16,891 km, reflecting Sydney's role as Australia's primary internet gateway. The measured average sits 1.45 times above the 165.41 ms fiber-floor estimate, a 68.7% fiber-efficiency ratio for this European-to-Asia-Pacific path.

Ranked 19th of the 19 outbound routes measured in this round, Marseille-Sydney is the long-distance tail of the set, and its latency tier is Fair. The route's standard deviation is about 3.4% of the average RTT, in line with the round's median standard-deviation-to-average ratio of 3.28%, so the elevated RTT is not accompanied by erratic variation.

## Latency Summary

| Metric               | Value                                                      |
| -------------------- | ---------------------------------------------------------- |
| RTT                  | **240.6 ms**                                               |
| Jitter               | **6.59 ms**                                                |
| Packet Loss          | **0%**                                                     |
| Standard Fiber Floor | **165.41 ms**                                              |
| Fiber Efficiency     | **68.7%**                                                  |
| Latency Tier         | Fair                                                       |
| Source Region        | [Europe](/docs/network/latency/regions/europe)             |
| 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 [Marseille](https://www.geonames.org/2995469) (43.29695, 5.38107) and [Sydney](https://www.geonames.org/2147714) (-33.86785, 151.20732). It does not disclose either facility address.

| Physical Reference                            | Value         |
| --------------------------------------------- | ------------- |
| WGS-84 geodesic distance                      | **16,891 km** |
| Vacuum RTT floor                              | **112.68 ms** |
| Standard fiber RTT floor ($n_g=1.4679$)       | **165.41 ms** |
| Low-latency fiber material floor              | **164.74 ms** |
| Engineering floor (5% path allowance)         | **173.7 ms**  |
| Research 1.33× mapped-fiber reference         | **219.99 ms** |
| Estimated unamplified path loss               | **3547.1 dB** |
| Transparent optical spans / inline amplifiers | **222 / 221** |
| Published RTT inflation over fiber floor      | **1.45×**     |

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        | **231.48 ms** |
| Average RTT        | **240.6 ms**  |
| Maximum RTT        | **266.22 ms** |
| Standard deviation | **8.19 ms**   |
| Stdev / average    | **3.4%**      |

## Route Context

* Departure PoP: [Marseille (MRS)](/docs/network/latency/mrs-marseille)
* Destination PoP: [Sydney (SYD)](/docs/network/latency/syd-sydney)
* Region overview: [Europe](/docs/network/latency/regions/europe) → [Asia Pacific](/docs/network/latency/regions/asia-pacific)
* Corridor overview: [Europe to Asia Pacific](/docs/network/latency/regions/europe-to-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**

* [Sydney to Marseille latency and RTT](/docs/network/latency/pairs/syd-mrs-rtt) — 240.5 ms

**Fastest routes departing Marseille (MRS)**

* [Marseille to Paris latency and RTT](/docs/network/latency/pairs/mrs-par-rtt) — 8.9 ms
* [Marseille to Frankfurt latency and RTT](/docs/network/latency/pairs/mrs-fra-rtt) — 16 ms
* [Marseille to London latency and RTT](/docs/network/latency/pairs/mrs-lon-rtt) — 18.9 ms
* [Marseille to Amsterdam latency and RTT](/docs/network/latency/pairs/mrs-ams-rtt) — 20.3 ms
* [Marseille to Berlin latency and RTT](/docs/network/latency/pairs/mrs-ber-rtt) — 20.6 ms

**Fastest routes arriving at Sydney (SYD)**

* [Melbourne to Sydney latency and RTT](/docs/network/latency/pairs/mel-syd-rtt) — 9.8 ms
* [Singapore to Sydney latency and RTT](/docs/network/latency/pairs/sin-syd-rtt) — 94.5 ms
* [Tokyo to Sydney latency and RTT](/docs/network/latency/pairs/tyo-syd-rtt) — 101.9 ms
* [Taipei to Sydney latency and RTT](/docs/network/latency/pairs/tpe-syd-rtt) — 133.2 ms
* [Hong Kong to Sydney latency and RTT](/docs/network/latency/pairs/hkg-syd-rtt) — 137.2 ms

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

* [Moscow to Hong Kong latency and RTT](/docs/network/latency/pairs/mow-hkg-rtt) — 118.6 ms
* [Moscow to Taipei latency and RTT](/docs/network/latency/pairs/mow-tpe-rtt) — 132.1 ms
* [Marseille to Singapore latency and RTT](/docs/network/latency/pairs/mrs-sin-rtt) — 139.6 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/mrs-syd.pings.{csv,json,yaml}`. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Marseille → Sydney 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/mrs-syd-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.