ICMP RTT measurements between Paris, France and Melbourne, Australia: average latency, jitter, packet loss and route efficiency for this long-haul path.

🇫🇷 Paris, France (PAR) → 🇦🇺 Melbourne, Australia (MEL)

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

During the 2026-08-16T04:07:28Z measurement round, 50 ICMP echo probes from Paris to Melbourne averaged 246.4 ms, with a minimum of 232.44 ms and a maximum of 296.68 ms. The standard deviation was 11.89 ms, jitter was 11.49 ms, and all samples returned successfully with zero packet loss.

At 16,787.7 km apart, the theoretical fiber-floor RTT is about 164.4 ms, placing the observed average at 1.5 times that benchmark and 66.7% fiber efficiency. The spread between minimum and maximum is 64.24 ms, which is wider than the jitter metric alone might suggest, so the route has a noticeable worst-case tail.

Ranked 18th among the 19 outbound paths in this round, Paris-Melbourne sits near the high-latency end of the current Paris outbound set. Its relative variability of approximately 4.8% is above the 3.28% median stability ratio for the round, making this route one where both average delay and delay variation should be tracked together.

Latency Summary

Metric	Value
RTT	246.4 ms
Jitter	11.49 ms
Packet Loss	0%
Standard Fiber Floor	164.4 ms
Fiber Efficiency	66.7%
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: PAR → MEL

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 246.4 ± 1.68 ms (SE)

Sample distribution: box = interquartile range (237.8–252.0 ms), median 243.5 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 (164.4 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	238.39
2	100	234.02
3	200	236.99
4	300	233.05
5	400	252.50
6	500	256.26
7	600	242.92
8	700	234.74
9	800	255.21
10	900	258.39
11	1000	244.88
12	1100	258.95
13	1200	239.80
14	1300	239.39
15	1400	236.64
16	1500	233.95
17	1600	244.58
18	1700	242.94
19	1800	233.59
20	1900	242.68
21	2000	238.08
22	2100	232.44
23	2200	296.68
24	2300	257.49
25	2400	239.14
26	2500	235.25
27	2600	246.59
28	2700	260.24
29	2800	242.25
30	2900	242.62
31	3000	234.15
32	3100	244.85
33	3200	249.80
34	3300	268.05
35	3400	241.66
36	3500	258.37
37	3600	246.59
38	3700	238.28
39	3800	237.59
40	3900	247.90
41	4000	250.49
42	4100	237.68
43	4200	261.40
44	4300	249.31
45	4400	247.39
46	4500	244.05
47	4600	247.40
48	4700	237.35
49	4800	255.49
50	4900	271.55

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 Paris (48.85341, 2.34880) and Melbourne (-37.81400, 144.96332). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	16,787.7 km
Vacuum RTT floor	112 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	164.4 ms
Low-latency fiber material floor	163.74 ms
Engineering floor (5% path allowance)	172.64 ms
Research 1.33× mapped-fiber reference	218.65 ms
Estimated unamplified path loss	3525.4 dB
Transparent optical spans / inline amplifiers	221 / 220
Published RTT inflation over fiber floor	1.5×

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	232.44 ms
Average RTT	246.4 ms
Maximum RTT	296.68 ms
Standard deviation	11.89 ms
Stdev / average	4.8%

RTT trend

Estimated route stability across the selected time window.

Average: 246.5 ms
Minimum: 244.0 ms
Maximum: 248.8 ms
Average loss: 0.03%

Route Context

Departure PoP: Paris (PAR)
Destination PoP: Melbourne (MEL)
Region overview: Europe → Asia Pacific
Corridor overview: Europe to Asia Pacific
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Melbourne to Paris latency and RTT — 246.5 ms

Fastest routes departing Paris (PAR)

Paris to London latency and RTT — 6.4 ms
Paris to Amsterdam latency and RTT — 7 ms
Paris to Frankfurt latency and RTT — 7.6 ms
Paris to Marseille latency and RTT — 8.9 ms
Paris to Berlin latency and RTT — 15.5 ms

Fastest routes arriving at Melbourne (MEL)

Sydney to Melbourne latency and RTT — 9.8 ms
Singapore to Melbourne latency and RTT — 88.6 ms
Tokyo to Melbourne latency and RTT — 113.9 ms
Hong Kong to Melbourne latency and RTT — 138.4 ms
Taipei to Melbourne latency and RTT — 142 ms

Same corridor (Europe → Asia Pacific)

Moscow to Hong Kong latency and RTT — 118.6 ms
Moscow to Taipei latency and RTT — 132.1 ms
Marseille to Singapore latency and RTT — 139.6 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/par-mel.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Paris → Melbourne 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.

Paris, France → Melbourne, Australia RTT