Los Angeles to Sydney ICMP RTT measurements: average, minimum, maximum and jitter for ping latency between USA and Australia from the August 16, 2026 round.

🇺🇸 Los Angeles, USA (LAX) → 🇦🇺 Sydney, Australia (SYD)

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

Using the 2026-08-16T04:07:28Z round, 50 ICMP echo probes from Los Angeles to Sydney produced an average RTT of 137.6 ms, with a minimum of 134.53 ms and a maximum of 146.99 ms.

All 50 probes were answered, and the 2.45 ms standard deviation with 1.96 ms jitter shows a very stable result. The average is only 16% above the 118.13 ms fiber-floor estimate for the 12,063.2 km great-circle distance, and the 85.9% fiber efficiency indicates the path is close to its physical reference.

This route is 11th of 19 in the outbound route set, putting it near the middle. Its spread is 1.8% of the average, much tighter than the 3.28% median across the set, so mid-pack latency here is accompanied by strong consistency.

Latency Summary

Metric	Value
RTT	137.6 ms
Jitter	1.96 ms
Packet Loss	0%
Standard Fiber Floor	118.13 ms
Fiber Efficiency	85.9%
Latency Tier	Good
Source Region	North 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: LAX → SYD

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 137.6 ± 0.35 ms (SE)

Sample distribution: box = interquartile range (136.1–138.7 ms), median 137.2 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 (118.1 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	135.15
2	100	137.49
3	200	137.93
4	300	139.35
5	400	136.38
6	500	137.21
7	600	138.69
8	700	137.24
9	800	136.65
10	900	135.43
11	1000	137.41
12	1100	138.73
13	1200	145.47
14	1300	139.24
15	1400	137.89
16	1500	136.74
17	1600	142.91
18	1700	146.99
19	1800	138.95
20	1900	136.22
21	2000	137.20
22	2100	135.87
23	2200	137.18
24	2300	139.17
25	2400	137.89
26	2500	137.21
27	2600	136.03
28	2700	135.68
29	2800	136.58
30	2900	139.00
31	3000	136.25
32	3100	135.02
33	3200	136.25
34	3300	135.19
35	3400	141.79
36	3500	138.67
37	3600	137.90
38	3700	138.52
39	3800	137.21
40	3900	136.63
41	4000	138.63
42	4100	139.75
43	4200	136.96
44	4300	135.87
45	4400	135.34
46	4500	134.76
47	4600	134.53
48	4700	136.47
49	4800	135.11
50	4900	135.27

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 Los Angeles (34.05223, -118.24368) and Sydney (-33.86785, 151.20732). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	12,063.2 km
Vacuum RTT floor	80.48 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	118.13 ms
Low-latency fiber material floor	117.66 ms
Engineering floor (5% path allowance)	124.05 ms
Research 1.33× mapped-fiber reference	157.12 ms
Estimated unamplified path loss	2533.3 dB
Transparent optical spans / inline amplifiers	159 / 158
Published RTT inflation over fiber floor	1.16×

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	134.53 ms
Average RTT	137.6 ms
Maximum RTT	146.99 ms
Standard deviation	2.45 ms
Stdev / average	1.8%

RTT trend

Estimated route stability across the selected time window.

Average: 137.7 ms
Minimum: 136.7 ms
Maximum: 139.0 ms
Average loss: 0.01%

Route Context

Departure PoP: Los Angeles (LAX)
Destination PoP: Sydney (SYD)
Region overview: North America → Asia Pacific
Corridor overview: North America to Asia Pacific
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Sydney to Los Angeles latency and RTT — 136.5 ms

Fastest routes departing Los Angeles (LAX)

Los Angeles to Seattle latency and RTT — 26.9 ms
Los Angeles to Miami latency and RTT — 57.3 ms
Los Angeles to New York latency and RTT — 57.9 ms
Los Angeles to Ashburn latency and RTT — 60.4 ms
Los Angeles to Tokyo latency and RTT — 101.2 ms

Fastest routes arriving at Sydney (SYD)

Melbourne to Sydney latency and RTT — 9.8 ms
Singapore to Sydney latency and RTT — 94.5 ms
Tokyo to Sydney latency and RTT — 101.9 ms
Taipei to Sydney latency and RTT — 133.2 ms
Hong Kong to Sydney latency and RTT — 137.2 ms

Same corridor (North America → Asia Pacific)

Seattle to Tokyo latency and RTT — 85 ms
Seattle to Taipei latency and RTT — 114.7 ms
Seattle to Hong Kong latency and RTT — 130.4 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/lax-syd.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Los Angeles → Sydney 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.

Los Angeles, USA → Sydney, Australia RTT