ICMP echo RTT data for London, UK to Hong Kong: average, minimum and maximum latency, jitter, standard deviation, and packet loss.

🇬🇧 London, UK (LON) → 🇭🇰 Hong Kong (HKG)

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

In the 2026-08-16T04:07:28Z round, 50 ICMP echo requests from London to Hong Kong averaged 160.6 ms, with the fastest sample at 151.57 ms and the slowest at 189.08 ms. Packet loss was 0% and jitter was 6.03 ms.

The great-circle distance of 9,643.6 km implies a fiber-floor estimate near 94.4 ms, so the observed mean is about 1.7 times that lower bound. The route ranks 13th among the 19 London-origin departures tracked in this round.

Sample spread was moderate: the 7.9 ms standard deviation translates to about 4.9% of the average, slightly above the 3.3% typical for the round's London departure set. With zero loss and a min-to-max range of 37.5 ms, London-to-Hong Kong is stable enough to be a useful reference for long-haul Asia-Pacific latency.

Latency Summary

Metric	Value
RTT	160.6 ms
Jitter	6.03 ms
Packet Loss	0%
Standard Fiber Floor	94.44 ms
Fiber Efficiency	58.8%
Latency Tier	Fair
Source Region	Europe
Destination Region	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.

Ping series: LON → HKG

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 160.6 ± 1.12 ms (SE)

Sample distribution: box = interquartile range (154.2–163.8 ms), median 159.8 ms · whiskers = min–max · diamond = round average · each dot is one measured sample.

How to read this chart

The shaded band spans the measured minimum to maximum RTT of all samples collected up to that point, and the thin line traces the running average. The final position therefore matches the round statistics exactly — the band only widens when a new extreme sample arrives.

The dashed line is the round average, and the shaded band at the bottom is the theoretical fiber-optic floor (94.4 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	155.97
2	100	153.70
3	200	152.87
4	300	168.45
5	400	157.81
6	500	154.86
7	600	161.52
8	700	154.79
9	800	179.43
10	900	169.04
11	1000	163.22
12	1100	163.49
13	1200	163.27
14	1300	161.77
15	1400	168.98
16	1500	162.53
17	1600	156.23
18	1700	153.80
19	1800	152.07
20	1900	152.08
21	2000	151.57
22	2100	151.88
23	2200	152.96
24	2300	161.53
25	2400	160.59
26	2500	159.05
27	2600	167.09
28	2700	166.12
29	2800	156.47
30	2900	154.14
31	3000	155.49
32	3100	154.01
33	3200	152.41
34	3300	151.65
35	3400	153.66
36	3500	175.05
37	3600	163.97
38	3700	164.66
39	3800	160.64
40	3900	155.44
41	4000	156.70
42	4100	167.97
43	4200	161.29
44	4300	156.22
45	4400	154.36
46	4500	162.69
47	4600	189.08
48	4700	168.93
49	4800	162.98
50	4900	175.52

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 for citation guidance.

Download this dataset

Per-route ICMP ping series, released under CC BY 4.0. Uncompressed plain text — no decompression step needed.

CSV JSON YAML Full dataset

Theoretical Fiber Latency

The public physical reference uses the GeoNames city centres for London (51.50853, -0.12574) and Hong Kong (22.27832, 114.17469). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	9,643.6 km
Vacuum RTT floor	64.34 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	94.44 ms
Low-latency fiber material floor	94.06 ms
Engineering floor (5% path allowance)	99.17 ms
Research 1.33× mapped-fiber reference	125.6 ms
Estimated unamplified path loss	2025.2 dB
Transparent optical spans / inline amplifiers	127 / 126
Published RTT inflation over fiber floor	1.7×

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.

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	151.57 ms
Average RTT	160.6 ms
Maximum RTT	189.08 ms
Standard deviation	7.9 ms
Stdev / average	4.9%

RTT trend

Estimated route stability across the selected time window.

Average: 160.3 ms
Minimum: 158.9 ms
Maximum: 162.2 ms
Average loss: 0.01%

Route Context

Departure PoP: London (LON)
Destination PoP: Hong Kong (HKG)
Region overview: Europe → Asia Pacific
Corridor overview: Europe to Asia Pacific
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Hong Kong to London latency and RTT — 158.7 ms

Fastest routes departing London (LON)

London to Amsterdam latency and RTT — 5.2 ms
London to Paris latency and RTT — 6.4 ms
London to Frankfurt latency and RTT — 13.6 ms
London to Berlin latency and RTT — 16.2 ms
London to Marseille latency and RTT — 17.9 ms

Fastest routes arriving at Hong Kong (HKG)

Taipei to Hong Kong latency and RTT — 15.5 ms
Singapore to Hong Kong latency and RTT — 30.8 ms
Tokyo to Hong Kong latency and RTT — 44.8 ms
Moscow to Hong Kong latency and RTT — 118.6 ms
Seattle to Hong Kong latency and RTT — 130.4 ms

Same corridor (Europe → Asia Pacific)

Moscow to Taipei latency and RTT — 132.1 ms
Marseille to Singapore latency and RTT — 139.6 ms
Berlin to Hong Kong latency and RTT — 144.9 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. Per-pair files are available at /opendata/latency/latest/pairs/lon-hkg.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, London → 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 or browse more city-pair routes.

London, UK → Hong Kong RTT