ICMP round-trip time between Sydney, Australia and Frankfurt, Germany: average latency, jitter, packet loss and efficiency for this intercontinental route.

🇦🇺 Sydney, Australia (SYD) → 🇩🇪 Frankfurt, Germany (FRA)

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

The 2026-08-16T04:07:28Z round of 50 ICMP echo probes from Sydney to Frankfurt returned an average round-trip time of 254.4 ms, with a minimum of 239.27 ms and a maximum of 292.11 ms. No packets were lost, while jitter was measured at 9.95 ms and the standard deviation at 11.5 ms.

The path spans a great-circle distance of 16,478.2 km, where the theoretical fiber-floor RTT is 161.37 ms. The observed average is about 1.58 times that floor, implying a fiber efficiency of 63.4%; in other words, roughly 93 ms of the round trip is overhead beyond the ideal fiber path.

This route ranked 14th of 19 outbound paths from Sydney in the same round, and its variability of about 4.5% of the average sits above the 3.28% median for that route set. The zero-loss result is encouraging, but the spread from minimum to maximum suggests the path can occasionally produce excursions beyond the typical range. These ICMP figures characterize network-layer round-trip behavior only, not application throughput.

Latency Summary

Metric	Value
RTT	254.4 ms
Jitter	9.95 ms
Packet Loss	0%
Standard Fiber Floor	161.37 ms
Fiber Efficiency	63.4%
Latency Tier	High
Source Region	Asia Pacific
Destination Region	Europe

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 → FRA

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 254.4 ± 1.63 ms (SE)

Sample distribution: box = interquartile range (247.2–257.3 ms), median 252.2 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 (161.4 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	253.29
2	100	255.16
3	200	251.38
4	300	247.24
5	400	248.65
6	500	252.41
7	600	254.78
8	700	257.39
9	800	247.34
10	900	241.87
11	1000	241.90
12	1100	241.83
13	1200	241.88
14	1300	244.60
15	1400	277.95
16	1500	253.72
17	1600	243.74
18	1700	255.41
19	1800	257.01
20	1900	250.72
21	2000	254.00
22	2100	292.11
23	2200	270.64
24	2300	250.39
25	2400	248.73
26	2500	249.45
27	2600	245.20
28	2700	260.15
29	2800	247.23
30	2900	247.78
31	3000	242.78
32	3100	274.65
33	3200	277.96
34	3300	252.92
35	3400	276.33
36	3500	266.54
37	3600	249.18
38	3700	259.88
39	3800	255.58
40	3900	266.25
41	4000	260.73
42	4100	248.18
43	4200	245.53
44	4300	240.54
45	4400	239.27
46	4500	253.22
47	4600	252.41
48	4700	246.02
49	4800	276.17
50	4900	251.91

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 Frankfurt am Main (50.11552, 8.68417). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	16,478.2 km
Vacuum RTT floor	109.93 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	161.37 ms
Low-latency fiber material floor	160.72 ms
Engineering floor (5% path allowance)	169.46 ms
Research 1.33× mapped-fiber reference	214.62 ms
Estimated unamplified path loss	3460.4 dB
Transparent optical spans / inline amplifiers	217 / 216
Published RTT inflation over fiber floor	1.58×

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	239.27 ms
Average RTT	254.4 ms
Maximum RTT	292.11 ms
Standard deviation	11.5 ms
Stdev / average	4.5%

RTT trend

Estimated route stability across the selected time window.

Average: 254.7 ms
Minimum: 252.0 ms
Maximum: 257.0 ms
Average loss: 0.03%

Route Context

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

Reverse direction

Frankfurt to Sydney latency and RTT — 256 ms

Fastest routes departing Sydney (SYD)

Sydney to Melbourne latency and RTT — 9.8 ms
Sydney to Singapore latency and RTT — 94.5 ms
Sydney to Tokyo latency and RTT — 101.3 ms
Sydney to Taipei latency and RTT — 131.7 ms
Sydney to Hong Kong latency and RTT — 135.7 ms

Fastest routes arriving at Frankfurt (FRA)

Amsterdam to Frankfurt latency and RTT — 5.9 ms
Berlin to Frankfurt latency and RTT — 6.1 ms
Paris to Frankfurt latency and RTT — 7.6 ms
London to Frankfurt latency and RTT — 13.6 ms
Marseille to Frankfurt latency and RTT — 16 ms

Same corridor (Asia Pacific → Europe)

Hong Kong to Moscow latency and RTT — 118.2 ms
Taipei to Moscow latency and RTT — 132.7 ms
Singapore to Marseille latency and RTT — 140.6 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-fra.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Sydney → Frankfurt 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.

Sydney, Australia → Frankfurt, Germany RTT