ICMP round-trip latency between Sydney, Australia and Taipei, Taiwan: 50 samples, 133.2 ms average, 0% packet loss, and statistics for round 2026-08-15.

🇦🇺 Sydney, Australia (SYD) → 🇹🇼 Taipei, Taiwan (TPE)

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

In measurement round 2026-08-15T04:03:13Z, ICMP echo probes from Sydney, Australia to Taipei, Taiwan delivered an average round-trip time of 133.2 ms, with a minimum of 125.91 ms and a maximum of 154.14 ms over 50 samples. Packet loss was 0%, but the 6.64 ms standard deviation and 4.82 ms jitter point to a less steady path than the round-trip average alone suggests.

This route is ranked fourth among the 19 measured routes. Its standard deviation is about 5.0% of the average, above the route set's median deviation of 3.08%, and the 28.23 ms gap between minimum and maximum indicates that varied path behavior occurred during the measurement window.

Over a geodesic distance of 7,237.6 km, the vacuum floor is 48.28 ms and the fiber floor is 70.88 ms; the measured average sits 1.88 times above that fiber floor, giving a fiber efficiency of 53.2%. The wider spread and higher overhead, not the absolute latency, are the route-specific signals worth watching.

Latency Summary

Metric	Value
RTT	133.2 ms
Jitter	4.82 ms
Packet Loss	0%
Standard Fiber Floor	70.88 ms
Fiber Efficiency	53.2%
Latency Tier	Good
Source Region	Asia Pacific
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: SYD → TPE

50 ICMP echo samples at 100 ms intervals · round 2026-08-15T04:03:13Z · avg 133.2 ± 0.94 ms (SE)

Sample distribution: box = interquartile range (129.1–135.1 ms), median 130.9 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 (70.9 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	126.27
2	100	127.39
3	200	130.20
4	300	129.76
5	400	128.35
6	500	131.11
7	600	130.74
8	700	129.72
9	800	133.65
10	900	129.99
11	1000	129.81
12	1100	128.27
13	1200	127.39
14	1300	133.83
15	1400	154.14
16	1500	138.49
17	1600	142.37
18	1700	140.12
19	1800	131.66
20	1900	135.22
21	2000	130.24
22	2100	128.69
23	2200	128.94
24	2300	131.62
25	2400	129.31
26	2500	129.42
27	2600	130.62
28	2700	128.17
29	2800	132.41
30	2900	152.48
31	3000	135.80
32	3100	131.59
33	3200	128.14
34	3300	132.92
35	3400	135.52
36	3500	134.23
37	3600	129.81
38	3700	129.12
39	3800	127.06
40	3900	126.06
41	4000	125.91
42	4100	139.15
43	4200	138.81
44	4300	154.08
45	4400	136.59
46	4500	132.46
47	4600	133.36
48	4700	134.72
49	4800	129.13
50	4900	145.16

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 Sydney (-33.86785, 151.20732) and Taipei (25.05306, 121.52639). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	7,237.6 km
Vacuum RTT floor	48.28 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	70.88 ms
Low-latency fiber material floor	70.59 ms
Engineering floor (5% path allowance)	74.43 ms
Research 1.33× mapped-fiber reference	94.26 ms
Estimated unamplified path loss	1519.9 dB
Transparent optical spans / inline amplifiers	95 / 94
Published RTT inflation over fiber floor	1.88×

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	125.91 ms
Average RTT	133.2 ms
Maximum RTT	154.14 ms
Standard deviation	6.64 ms
Stdev / average	5.0%

RTT trend

Estimated route stability across the selected time window.

Average: 133.1 ms
Minimum: 131.8 ms
Maximum: 134.3 ms
Average loss: 0.01%

Route Context

Departure PoP: Sydney (SYD)
Destination PoP: Taipei (TPE)
Region overview: Asia Pacific → Asia Pacific
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Taipei to Sydney latency and RTT — 131.8 ms

Fastest routes departing Sydney (SYD)

Sydney to Melbourne latency and RTT — 9.8 ms
Sydney to Singapore latency and RTT — 94.7 ms
Sydney to Tokyo latency and RTT — 101.6 ms
Sydney to Hong Kong latency and RTT — 135.9 ms
Sydney to Los Angeles latency and RTT — 136.2 ms

Fastest routes arriving at Taipei (TPE)

Hong Kong to Taipei latency and RTT — 15.2 ms
Tokyo to Taipei latency and RTT — 32.1 ms
Singapore to Taipei latency and RTT — 44.3 ms
Seattle to Taipei latency and RTT — 115.1 ms
Moscow to Taipei latency and RTT — 130.9 ms

Same corridor (Asia Pacific → Asia Pacific)

Melbourne to Sydney latency and RTT — 9.8 ms
Taipei to Hong Kong latency and RTT — 15.4 ms
Singapore to Hong Kong latency and RTT — 30.9 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/syd-tpe.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Sydney → Taipei 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.

Sydney, Australia → Taipei, Taiwan RTT