São Paulo to Sydney ping and RTT: 264.1 ms, 7.99 ms jitter, 131 ms fiber floor, and 49.6% efficiency across AS203314. Updated 2026-08-09.

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

As of August 9, 2026, the São Paulo → Sydney route on Hats Network averages 264.1 ms RTT across a 50-sample daily ICMP echo measurement round, 2.02× the theoretical fiber-floor limit of 131 ms.

Among the 19 measured routes departing São Paulo, this route ranks 15th fastest by average RTT.

With a stdev-to-average ratio of 4.1%, 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 252.95 ms to 310.33 ms with a standard deviation of 10.94 ms.

Latency Summary

Metric	Value
RTT	264.1 ms
Jitter	7.99 ms
Packet Loss	0%
Standard Fiber Floor	131 ms
Fiber Efficiency	49.6%
Latency Tier	High
Source Region	South America
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: GRU → SYD

50 ICMP echo samples at 100 ms intervals · round 2026-08-09 · avg 264.1 ± 1.55 ms (SE)

Sample distribution: box = interquartile range (256.4–267.2 ms), median 261.1 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 (131.0 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	253.05
2	100	257.41
3	200	254.29
4	300	254.11
5	400	252.95
6	500	255.40
7	600	285.93
8	700	265.38
9	800	310.33
10	900	275.28
11	1000	264.85
12	1100	258.24
13	1200	271.05
14	1300	261.36
15	1400	256.41
16	1500	267.48
17	1600	263.37
18	1700	270.19
19	1800	277.55
20	1900	271.03
21	2000	261.81
22	2100	283.94
23	2200	265.62
24	2300	258.16
25	2400	260.41
26	2500	280.12
27	2600	283.93
28	2700	281.02
29	2800	264.18
30	2900	256.37
31	3000	256.24
32	3100	256.10
33	3200	257.55
34	3300	258.43
35	3400	259.68
36	3500	268.95
37	3600	257.92
38	3700	260.25
39	3800	261.96
40	3900	264.11
41	4000	262.51
42	4100	261.22
43	4200	260.88
44	4300	257.20
45	4400	255.69
46	4500	254.65
47	4600	253.77
48	4700	256.51
49	4800	253.90
50	4900	266.26

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 São Paulo (-23.54750, -46.63611) and Sydney (-33.86785, 151.20732). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	13,377 km
Vacuum RTT floor	89.24 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	131 ms
Low-latency fiber material floor	130.47 ms
Engineering floor (5% path allowance)	137.57 ms
Research 1.33× mapped-fiber reference	174.23 ms
Estimated unamplified path loss	2809.2 dB
Transparent optical spans / inline amplifiers	176 / 175
Published RTT inflation over fiber floor	2.02×

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	252.95 ms
Average RTT	264.1 ms
Maximum RTT	310.33 ms
Standard deviation	10.94 ms
Stdev / average	4.1%

RTT trend

Estimated route stability across the selected time window.

Average: 264.1 ms
Minimum: 261.9 ms
Maximum: 266.9 ms
Average loss: 0.02%

Route Context

Departure PoP: São Paulo (GRU)
Destination PoP: Sydney (SYD)
Region overview: South America → Asia Pacific
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Sydney to São Paulo latency and RTT — 293.8 ms

Fastest routes departing São Paulo (GRU)

São Paulo to Miami latency and RTT — 74 ms
São Paulo to New York latency and RTT — 122 ms
São Paulo to Ashburn latency and RTT — 128 ms
São Paulo to Los Angeles latency and RTT — 131.3 ms
São Paulo to Seattle latency and RTT — 155.5 ms

Fastest routes arriving at Sydney (SYD)

Melbourne to Sydney latency and RTT — 9.8 ms
Singapore to Sydney latency and RTT — 94.3 ms
Tokyo to Sydney latency and RTT — 102 ms
Taipei to Sydney latency and RTT — 132.3 ms
Los Angeles to Sydney latency and RTT — 137.3 ms

Same corridor (South America → Asia Pacific)

São Paulo to Tokyo latency and RTT — 230.6 ms
São Paulo to Taipei latency and RTT — 258.9 ms
São Paulo to Hong Kong latency and RTT — 273.3 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/gru-syd.pings.{csv,json,yaml}. When citing, include the route, the measurement round date, and the dataset version — for example: "Hats Network latency dataset, São Paulo → Sydney 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.

São Paulo to Sydney Latency, Ping & RTT | AS203314