Live London to Hong Kong ICMP ping latency data: average RTT, jitter, packet loss, and route efficiency for UK–Hong Kong connectivity.

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

Measurement round: 2026-08-15T04:03:13Z.

For the 2026-08-15T04:03:13Z round, ICMP echo requests from London to Hong Kong averaged 160.5 ms, with a 153.5 ms minimum, a 179.01 ms maximum, and zero packet loss across 50 samples.

The 9,643.6 km geodesic distance corresponds to a vacuum transit floor of 64.34 ms and a fiber floor of 94.44 ms. At 160.5 ms, the measured RTT is 1.7 times the fiber floor and reaches 58.8% fiber efficiency, a typical outcome for an intercontinental path that cannot follow a perfect great-circle cable.

This London outbound leg ranked 12th of 19 routes in the same round, placing it on the slower side of the network's latency spread. The measured variation of 5.35 ms is about 3.3% of the average, slightly above the network median of 3.08%, while jitter came in at 5.28 ms. The path is consistent enough for ICMP-based insight, but RTT should not be treated as a proxy for end-user application speed.

Latency Summary

Metric	Value
RTT	160.5 ms
Jitter	5.28 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 2026-08-15T04:03:13Z · avg 160.5 ± 0.76 ms (SE)

Sample distribution: box = interquartile range (156.4–164.5 ms), median 158.8 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	166.59
2	100	157.46
3	200	155.43
4	300	163.64
5	400	158.40
6	500	155.65
7	600	167.60
8	700	166.40
9	800	170.27
10	900	160.09
11	1000	161.16
12	1100	156.71
13	1200	168.65
14	1300	179.01
15	1400	168.67
16	1500	165.93
17	1600	157.16
18	1700	154.30
19	1800	163.33
20	1900	157.63
21	2000	154.67
22	2100	160.90
23	2200	166.91
24	2300	160.43
25	2400	155.36
26	2500	154.49
27	2600	158.05
28	2700	156.56
29	2800	156.32
30	2900	153.90
31	3000	164.77
32	3100	158.20
33	3200	160.83
34	3300	155.41
35	3400	166.12
36	3500	157.84
37	3600	157.16
38	3700	163.16
39	3800	156.40
40	3900	160.72
41	4000	159.30
42	4100	155.60
43	4200	153.50
44	4300	159.73
45	4400	167.64
46	4500	166.83
47	4600	157.88
48	4700	158.26
49	4800	154.80
50	4900	159.18

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 (2026-08-15T04:03:13Z) collected 50 ICMP echo samples on this route. Distribution statistics from that round:

Round Statistic	Value
Minimum RTT	153.5 ms
Average RTT	160.5 ms
Maximum RTT	179.01 ms
Standard deviation	5.35 ms
Stdev / average	3.3%

RTT trend

Estimated route stability across the selected time window.

Average: 160.4 ms
Minimum: 159.3 ms
Maximum: 161.9 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 — 158.3 ms

Fastest routes departing London (LON)

London to Amsterdam latency and RTT — 5.1 ms
London to Paris latency and RTT — 7.1 ms
London to Frankfurt latency and RTT — 12.3 ms
London to Berlin latency and RTT — 16.2 ms
London to Marseille latency and RTT — 24.9 ms

Fastest routes arriving at Hong Kong (HKG)

Taipei to Hong Kong latency and RTT — 15.4 ms
Singapore to Hong Kong latency and RTT — 30.9 ms
Tokyo to Hong Kong latency and RTT — 45.6 ms
Moscow to Hong Kong latency and RTT — 118.5 ms
Seattle to Hong Kong latency and RTT — 130.7 ms

Same corridor (Europe → Asia Pacific)

Moscow to Taipei latency and RTT — 130.9 ms
Marseille to Singapore latency and RTT — 138.5 ms
Berlin to Hong Kong latency and RTT — 143.9 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 2026-08-15T04:03:13Z, CC BY 4.0".

Data auto-generated on August 15, 2026. Explore the full interactive latency matrix or browse more city-pair routes.

London, UK → Hong Kong RTT