Explore Melbourne, Australia to Hong Kong ICMP RTT, jitter, packet loss and fiber latency limits on the AS203314 network.

🇦🇺 Melbourne, Australia (MEL) → 🇭🇰 Hong Kong (HKG)

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

Melbourne to Hong Kong averaged 138.5 ms across 50 replies. The observed range was 133.73 to 150.99 ms; these figures describe one probe round, not a long-term service target.

This is number 4 of 19 outgoing routes by average RTT. That ranking compares different destinations and is not adjusted for distance.

Latency Summary

Metric	Value
RTT	138.5 ms
Jitter	3.66 ms
Packet Loss	0%
Standard Fiber Floor	72.38 ms
Fiber Efficiency	52.3%
Latency Tier	Good
Source Region	Asia Pacific
Destination Region	Asia Pacific

Ping Measurement Series

50 ICMP echo probes were recorded in this round. Individual replies and their distribution are shown below.

Ping series: MEL → HKG

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 138.5 ± 0.62 ms (SE)

Sample distribution: box = interquartile range (135.3–140.0 ms), median 137.7 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 (72.4 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	142.00
2	100	150.50
3	200	146.05
4	300	138.12
5	400	135.72
6	500	138.17
7	600	134.95
8	700	133.95
9	800	133.73
10	900	134.56
11	1000	134.03
12	1100	138.02
13	1200	140.87
14	1300	136.28
15	1400	138.29
16	1500	135.96
17	1600	141.18
18	1700	138.67
19	1800	139.92
20	1900	135.47
21	2000	134.78
22	2100	135.16
23	2200	136.47
24	2300	140.12
25	2400	135.56
26	2500	134.31
27	2600	134.02
28	2700	135.25
29	2800	134.63
30	2900	134.21
31	3000	138.22
32	3100	144.67
33	3200	137.46
34	3300	136.32
35	3400	134.21
36	3500	140.07
37	3600	135.51
38	3700	147.83
39	3800	139.14
40	3900	135.95
41	4000	146.66
42	4100	139.78
43	4200	137.40
44	4300	138.26
45	4400	139.00
46	4500	147.13
47	4600	150.99
48	4700	140.62
49	4800	138.89
50	4900	135.94

Download This Route's Data

Download the probe round as CSV, JSON or YAML under CC BY 4.0. Citation details include the route and round timestamp.

CSV JSON YAML Full dataset

Theoretical Fiber Latency

The propagation model uses public city-centre coordinates from GeoNames: Melbourne (-37.81400, 144.96332) and Hong Kong (22.27832, 114.17469). These are not facility coordinates or a surveyed cable path.

Physical Reference	Value
WGS-84 geodesic distance	7,391.1 km
Vacuum RTT floor	49.31 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	72.38 ms
Low-latency fiber material floor	72.09 ms
Engineering floor (5% path allowance)	76.01 ms
Research 1.33× mapped-fiber reference	96.26 ms
Estimated unamplified path loss	1552.1 dB
Transparent optical spans / inline amplifiers	98 / 97
Published RTT inflation over fiber floor	1.91×

The span count assumes 80 km optical spans. Attenuation is a power-loss term, not a propagation delay. See the model assumptions and equations.

Stability & Trend

Statistics from the same 50 replies. They describe this probe round, not continuous historical monitoring.

Round Statistic	Value
Minimum RTT	133.73 ms
Average RTT	138.5 ms
Maximum RTT	150.99 ms
Standard deviation	4.36 ms
Stdev / average	3.1%

Estimated RTT trend

Modeled comparison, not historical probe measurements.

Average: 138.6 ms
Minimum: 136.9 ms
Maximum: 139.7 ms
Average loss: 0.02%

Route Context

Departure PoP: Melbourne (MEL)
Destination PoP: Hong Kong (HKG)
Region overview: Asia Pacific → Asia Pacific
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Hong Kong to Melbourne latency and RTT: 138.4 ms

Fastest routes departing Melbourne (MEL)

Melbourne to Sydney latency and RTT: 9.8 ms
Melbourne to Singapore latency and RTT: 88.4 ms
Melbourne to Tokyo latency and RTT: 112 ms
Melbourne to Taipei latency and RTT: 143.2 ms
Melbourne to Los Angeles latency and RTT: 148.4 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 (Asia Pacific → Asia Pacific)

Sydney to Melbourne latency and RTT: 9.8 ms
Hong Kong to Taipei latency and RTT: 14.7 ms
Hong Kong to Singapore latency and RTT: 31.5 ms

About This Measurement

These ICMP measurements cover the two backbone endpoints. Access networks, routing policy and load can change an end user's result. A probe round is not an SLA.

The underlying replies are available under CC BY 4.0 in the Hats Network latency dataset. Per-pair files are available at /opendata/latency/latest/pairs/mel-hkg.pings.{csv,json,yaml}. Cite the route, round timestamp and dataset version. Example: "Hats Network latency dataset, Melbourne → Hong Kong round 2026-08-16T04:07:28Z, CC BY 4.0".

Round published August 16, 2026. See the full interactive latency matrix or browse more city-pair routes.

Melbourne, Australia → Hong Kong RTT