# Singapore → Paris, France RTT

🇸🇬 **Singapore (SIN)** → 🇫🇷 **Paris, France (PAR)**

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

During the 2026-08-16T04:07:28Z round, 50 ICMP echo probes from Singapore to Paris, France averaged 151.4 ms, with a minimum of 142.1 ms, a maximum of 172.35 ms, and zero packet loss. The 6.44 ms jitter and 6.94 ms standard deviation show a stable path whose occasional longer delays sit only about 21 ms above the average.

This route's 151.4 ms mean is 1.44 times the 105.19 ms fiber-floor estimate for the 10,741.6 km great-circle distance, putting fiber efficiency at 69.5%. Relative to the 19 routes measured from this origin in the same round, this path ranked 8th; the typical variability across that set was 3.28% of the average RTT, while this route's own spread was around 4.6% of its mean.

A useful takeaway is that the minimum RTT is only 9.3 ms below the average, so most probes land close to the typical value; the maximum then stretches to 172.35 ms. With no packet loss in this sample, the route offers a fair latency tier and consistent behavior, though the 69.5% fiber efficiency shows it is not operating near the physical floor.

## Latency Summary

| Metric               | Value                                                      |
| -------------------- | ---------------------------------------------------------- |
| RTT                  | **151.4 ms**                                               |
| Jitter               | **6.44 ms**                                                |
| Packet Loss          | **0%**                                                     |
| Standard Fiber Floor | **105.19 ms**                                              |
| Fiber Efficiency     | **69.5%**                                                  |
| Latency Tier         | Fair                                                       |
| Source Region        | [Asia Pacific](/docs/network/latency/regions/asia-pacific) |
| Destination Region   | [Europe](/docs/network/latency/regions/europe)             |

## 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 [Singapore](https://www.geonames.org/1880252) (1.28967, 103.85007) and [Paris](https://www.geonames.org/2988507) (48.85341, 2.34880). It does not disclose either facility address.

| Physical Reference                            | Value           |
| --------------------------------------------- | --------------- |
| WGS-84 geodesic distance                      | **10,741.6 km** |
| Vacuum RTT floor                              | **71.66 ms**    |
| Standard fiber RTT floor ($n_g=1.4679$)       | **105.19 ms**   |
| Low-latency fiber material floor              | **104.77 ms**   |
| Engineering floor (5% path allowance)         | **110.46 ms**   |
| Research 1.33× mapped-fiber reference         | **139.9 ms**    |
| Estimated unamplified path loss               | **2255.7 dB**   |
| Transparent optical spans / inline amplifiers | **141 / 140**   |
| Published RTT inflation over fiber floor      | **1.44×**       |

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        | **142.1 ms**  |
| Average RTT        | **151.4 ms**  |
| Maximum RTT        | **172.35 ms** |
| Standard deviation | **6.94 ms**   |
| Stdev / average    | **4.6%**      |

## Route Context

* Departure PoP: [Singapore (SIN)](/docs/network/latency/sin-singapore)
* Destination PoP: [Paris (PAR)](/docs/network/latency/par-paris)
* Region overview: [Asia Pacific](/docs/network/latency/regions/asia-pacific) → [Europe](/docs/network/latency/regions/europe)
* 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**

* [Paris to Singapore latency and RTT](/docs/network/latency/pairs/par-sin-rtt) — 150.3 ms

**Fastest routes departing Singapore (SIN)**

* [Singapore to Hong Kong latency and RTT](/docs/network/latency/pairs/sin-hkg-rtt) — 30.8 ms
* [Singapore to Taipei latency and RTT](/docs/network/latency/pairs/sin-tpe-rtt) — 45.8 ms
* [Singapore to Tokyo latency and RTT](/docs/network/latency/pairs/sin-tyo-rtt) — 68.9 ms
* [Singapore to Melbourne latency and RTT](/docs/network/latency/pairs/sin-mel-rtt) — 88.6 ms
* [Singapore to Sydney latency and RTT](/docs/network/latency/pairs/sin-syd-rtt) — 94.5 ms

**Fastest routes arriving at Paris (PAR)**

* [London to Paris latency and RTT](/docs/network/latency/pairs/lon-par-rtt) — 6.4 ms
* [Amsterdam to Paris latency and RTT](/docs/network/latency/pairs/ams-par-rtt) — 7 ms
* [Frankfurt to Paris latency and RTT](/docs/network/latency/pairs/fra-par-rtt) — 7.6 ms
* [Marseille to Paris latency and RTT](/docs/network/latency/pairs/mrs-par-rtt) — 8.9 ms
* [Berlin to Paris latency and RTT](/docs/network/latency/pairs/ber-par-rtt) — 15.6 ms

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

* [Hong Kong to Moscow latency and RTT](/docs/network/latency/pairs/hkg-mow-rtt) — 118.2 ms
* [Taipei to Moscow latency and RTT](/docs/network/latency/pairs/tpe-mow-rtt) — 132.7 ms
* [Singapore to Marseille latency and RTT](/docs/network/latency/pairs/sin-mrs-rtt) — 140.6 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/sin-par.pings.{csv,json,yaml}`. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Singapore → Paris 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/sin-par-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.