# Hong Kong → Los Angeles, USA RTT

🇭🇰 **Hong Kong (HKG)** → 🇺🇸 **Los Angeles, USA (LAX)**

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

For measurement round 2026-08-16T04:07:28Z, 50 ICMP echo probes from Hong Kong to Los Angeles returned an average RTT of 145 ms, with a minimum of 139.67 ms and a maximum of 160.38 ms. No packets were lost, and the reported jitter was 3.79 ms.

The measured average sits 1.27 times above the fiber floor for the 11,671.5 km geodesic span, giving a fiber-path efficiency of 78.8%. Standard deviation was 4.08 ms, or about 2.8% of the average, a little below the 3.28% median relative variability for the 19 outbound routes in this round.

This route ranks 8th among those 19 outbound paths, placing it in the faster half of the Hong Kong outbound set while still showing a sub-150 ms average. Its Good latency tier, zero loss, and low jitter make it a consistent trans-Pacific reference for the round.

## Latency Summary

| Metric               | Value                                                        |
| -------------------- | ------------------------------------------------------------ |
| RTT                  | **145 ms**                                                   |
| Jitter               | **3.79 ms**                                                  |
| Packet Loss          | **0%**                                                       |
| Standard Fiber Floor | **114.3 ms**                                                 |
| Fiber Efficiency     | **78.8%**                                                    |
| Latency Tier         | Good                                                         |
| Source Region        | [Asia Pacific](/docs/network/latency/regions/asia-pacific)   |
| Destination Region   | [North America](/docs/network/latency/regions/north-america) |

## 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 [Hong Kong](https://www.geonames.org/1819729) (22.27832, 114.17469) and [Los Angeles](https://www.geonames.org/5368361) (34.05223, -118.24368). It does not disclose either facility address.

| Physical Reference                            | Value           |
| --------------------------------------------- | --------------- |
| WGS-84 geodesic distance                      | **11,671.5 km** |
| Vacuum RTT floor                              | **77.86 ms**    |
| Standard fiber RTT floor ($n_g=1.4679$)       | **114.3 ms**    |
| Low-latency fiber material floor              | **113.84 ms**   |
| Engineering floor (5% path allowance)         | **120.03 ms**   |
| Research 1.33× mapped-fiber reference         | **152.01 ms**   |
| Estimated unamplified path loss               | **2451 dB**     |
| Transparent optical spans / inline amplifiers | **154 / 153**   |
| Published RTT inflation over fiber floor      | **1.27×**       |

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        | **139.67 ms** |
| Average RTT        | **145 ms**    |
| Maximum RTT        | **160.38 ms** |
| Standard deviation | **4.08 ms**   |
| Stdev / average    | **2.8%**      |

## Route Context

* Departure PoP: [Hong Kong (HKG)](/docs/network/latency/hkg-hong-kong)
* Destination PoP: [Los Angeles (LAX)](/docs/network/latency/lax-los-angeles)
* Region overview: [Asia Pacific](/docs/network/latency/regions/asia-pacific) → [North America](/docs/network/latency/regions/north-america)
* 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**

* [Los Angeles to Hong Kong latency and RTT](/docs/network/latency/pairs/lax-hkg-rtt) — 146.5 ms

**Fastest routes departing Hong Kong (HKG)**

* [Hong Kong to Taipei latency and RTT](/docs/network/latency/pairs/hkg-tpe-rtt) — 14.7 ms
* [Hong Kong to Singapore latency and RTT](/docs/network/latency/pairs/hkg-sin-rtt) — 31.5 ms
* [Hong Kong to Tokyo latency and RTT](/docs/network/latency/pairs/hkg-tyo-rtt) — 44.9 ms
* [Hong Kong to Moscow latency and RTT](/docs/network/latency/pairs/hkg-mow-rtt) — 118.2 ms
* [Hong Kong to Seattle latency and RTT](/docs/network/latency/pairs/hkg-sea-rtt) — 131.6 ms

**Fastest routes arriving at Los Angeles (LAX)**

* [Seattle to Los Angeles latency and RTT](/docs/network/latency/pairs/sea-lax-rtt) — 25.9 ms
* [Miami to Los Angeles latency and RTT](/docs/network/latency/pairs/mia-lax-rtt) — 56.8 ms
* [New York to Los Angeles latency and RTT](/docs/network/latency/pairs/nyc-lax-rtt) — 58.9 ms
* [Ashburn to Los Angeles latency and RTT](/docs/network/latency/pairs/iad-lax-rtt) — 60.7 ms
* [Tokyo to Los Angeles latency and RTT](/docs/network/latency/pairs/tyo-lax-rtt) — 101.2 ms

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

* [Tokyo to Seattle latency and RTT](/docs/network/latency/pairs/tyo-sea-rtt) — 84.8 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

## 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/hkg-lax.pings.{csv,json,yaml}`. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Hong Kong → Los Angeles 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/hkg-lax-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.