Sydney to Paris ping and RTT: 250.4 ms, 10.37 ms jitter, 166.06 ms fiber floor, and 66.3% efficiency across AS203314. Updated 2026-08-09.

🇦🇺 This page compares the published ping and round-trip time (RTT) from Sydney (SYD) to 🇫🇷 Paris (PAR) with vacuum and optical-fiber physical limits.

As of August 9, 2026, the Sydney → Paris route on Hats Network averages 250.4 ms RTT across a 50-sample daily ICMP echo measurement round (source: GSL), 1.51× the theoretical fiber-floor limit of 166.06 ms.

Among the 19 measured routes departing Sydney, this route ranks 13th fastest by average RTT.

With a stdev-to-average ratio of 4.8%, this route fluctuates more than the network median of 3.4%, so short congestion windows can surface as transient RTT spikes. Across the round, per-probe RTT ranged from 236.17 ms to 285.92 ms with a standard deviation of 12.01 ms.

Latency Summary

Metric	Value
RTT	250.4 ms
Jitter	10.37 ms
Packet Loss	0%
Standard Fiber Floor	166.06 ms
Fiber Efficiency	66.3%
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 → PAR

50 ICMP echo samples at 100 ms intervals · round 2026-08-09 · avg 250.4 ± 1.70 ms (SE)

Sample distribution: box = interquartile range (241.8–255.9 ms), median 247.2 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 (166.1 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	236.17
2	100	244.18
3	200	250.11
4	300	263.23
5	400	256.35
6	500	266.52
7	600	266.54
8	700	257.47
9	800	249.82
10	900	240.92
11	1000	246.90
12	1100	248.39
13	1200	244.46
14	1300	243.82
15	1400	238.05
16	1500	238.46
17	1600	248.19
18	1700	285.92
19	1800	259.86
20	1900	243.34
21	2000	253.87
22	2100	246.05
23	2200	238.78
24	2300	264.99
25	2400	251.31
26	2500	256.47
27	2600	253.84
28	2700	245.33
29	2800	258.14
30	2900	283.60
31	3000	251.55
32	3100	245.04
33	3200	240.10
34	3300	247.66
35	3400	240.22
36	3500	237.63
37	3600	237.07
38	3700	238.85
39	3800	281.31
40	3900	254.53
41	4000	248.36
42	4100	246.80
43	4200	244.50
44	4300	272.22
45	4400	247.50
46	4500	243.77
47	4600	244.59
48	4700	238.10
49	4800	237.78
50	4900	241.34

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 Paris (48.85341, 2.34880). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	16,957.7 km
Vacuum RTT floor	113.13 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	166.06 ms
Low-latency fiber material floor	165.4 ms
Engineering floor (5% path allowance)	174.39 ms
Research 1.33× mapped-fiber reference	220.86 ms
Estimated unamplified path loss	3561.1 dB
Transparent optical spans / inline amplifiers	223 / 222
Published RTT inflation over fiber floor	1.51×

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 (2026-08-09) collected 50 ICMP echo samples on this route. Distribution statistics from that round:

Round Statistic	Value
Minimum RTT	236.17 ms
Average RTT	250.4 ms
Maximum RTT	285.92 ms
Standard deviation	12.01 ms
Stdev / average	4.8%

RTT trend

Estimated route stability across the selected time window.

Average: 250.5 ms
Minimum: 248.1 ms
Maximum: 252.8 ms
Average loss: 0.01%

Route Context

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

Reverse direction

Paris to Sydney latency and RTT — 252 ms

Fastest routes departing Sydney (SYD)

Sydney to Melbourne latency and RTT — 9.8 ms
Sydney to Singapore latency and RTT — 94.6 ms
Sydney to Tokyo latency and RTT — 101.4 ms
Sydney to Taipei latency and RTT — 132.2 ms
Sydney to Los Angeles latency and RTT — 138.7 ms

Fastest routes arriving at Paris (PAR)

London to Paris latency and RTT — 6.4 ms
Amsterdam to Paris latency and RTT — 7 ms
Frankfurt to Paris latency and RTT — 7.6 ms
Marseille to Paris latency and RTT — 8.9 ms
Berlin to Paris latency and RTT — 14.7 ms

Same corridor (Asia Pacific → Europe)

Hong Kong to Moscow latency and RTT — 119.5 ms
Taipei to Moscow latency and RTT — 134.7 ms
Singapore to Marseille latency and RTT — 139.8 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-par.pings.{csv,json,yaml}. When citing, include the route, the measurement round date, and the dataset version — for example: "Hats Network latency dataset, Sydney → Paris round 2026-08-09, CC BY 4.0".

Data auto-generated on August 9, 2026. Explore the full interactive latency matrix or browse more city-pair routes.

Sydney to Paris Latency, Ping & RTT | AS203314