See measured ICMP round-trip latency from Sydney, Australia to New York, USA, with 50 samples, 193.5 ms average, and no packet loss.

🇦🇺 Sydney, Australia (SYD) → 🇺🇸 New York, USA (NYC)

Measurement round: 2026-08-15T04:03:13Z.

In the 2026-08-15T04:03:13Z round, the path from Sydney to New York recorded an average ICMP echo RTT of 193.5 ms from 50 probes, with a minimum of 185.8 ms and a maximum of 212.89 ms. For a 15,988 km great-circle distance, that is roughly 24% above the 156.57 ms theoretical fiber floor, corresponding to a fiber efficiency of 80.9%.

Among the 19 routes measured from Sydney in this round, New York ranked eighth by average latency, placing it around the middle of the set. Variability was modest but above the median: a standard deviation of 6.36 ms is about 3.3% of the average, against a 3.08% median across the 19-route set, with jitter of 5.49 ms and no packet loss.

New York anchors the US end of the transatlantic corridor, and the physical distance from Sydney is the dominant factor in the Fair latency tier. The loss-free result and contained standard deviation indicate a dependable long-haul path. For assessing Sydney-to-New York network latency, the stability of the RTT is as informative as the average.

Latency Summary

Metric	Value
RTT	193.5 ms
Jitter	5.49 ms
Packet Loss	0%
Standard Fiber Floor	156.57 ms
Fiber Efficiency	80.9%
Latency Tier	Fair
Source Region	Asia Pacific
Destination Region	North America

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 → NYC

50 ICMP echo samples at 100 ms intervals · round 2026-08-15T04:03:13Z · avg 193.5 ± 0.90 ms (SE)

Sample distribution: box = interquartile range (189.0–196.6 ms), median 191.8 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 (156.6 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	185.80
2	100	185.92
3	200	186.20
4	300	188.20
5	400	189.12
6	500	192.63
7	600	189.74
8	700	188.00
9	800	187.20
10	900	192.03
11	1000	194.19
12	1100	190.36
13	1200	188.30
14	1300	186.76
15	1400	202.09
16	1500	192.35
17	1600	192.67
18	1700	209.74
19	1800	197.25
20	1900	203.99
21	2000	192.16
22	2100	189.30
23	2200	202.35
24	2300	212.89
25	2400	204.01
26	2500	196.57
27	2600	191.61
28	2700	191.39
29	2800	188.48
30	2900	192.65
31	3000	188.47
32	3100	195.43
33	3200	192.27
34	3300	201.45
35	3400	196.65
36	3500	189.70
37	3600	188.21
38	3700	196.93
39	3800	191.29
40	3900	209.13
41	4000	198.76
42	4100	190.74
43	4200	188.99
44	4300	197.59
45	4400	193.85
46	4500	189.09
47	4600	188.69
48	4700	192.99
49	4800	190.65
50	4900	190.17

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 New York City (40.71427, -74.00597). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	15,988.1 km
Vacuum RTT floor	106.66 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	156.57 ms
Low-latency fiber material floor	155.94 ms
Engineering floor (5% path allowance)	164.42 ms
Research 1.33× mapped-fiber reference	208.24 ms
Estimated unamplified path loss	3357.5 dB
Transparent optical spans / inline amplifiers	210 / 209
Published RTT inflation over fiber floor	1.24×

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 (2026-08-15T04:03:13Z) collected 50 ICMP echo samples on this route. Distribution statistics from that round:

Round Statistic	Value
Minimum RTT	185.8 ms
Average RTT	193.5 ms
Maximum RTT	212.89 ms
Standard deviation	6.36 ms
Stdev / average	3.3%

RTT trend

Estimated route stability across the selected time window.

Average: 193.7 ms
Minimum: 191.9 ms
Maximum: 195.2 ms
Average loss: 0.03%

Route Context

Departure PoP: Sydney (SYD)
Destination PoP: New York (NYC)
Region overview: Asia Pacific → North America
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

New York to Sydney latency and RTT — 193.6 ms

Fastest routes departing Sydney (SYD)

Sydney to Melbourne latency and RTT — 9.8 ms
Sydney to Singapore latency and RTT — 94.7 ms
Sydney to Tokyo latency and RTT — 101.6 ms
Sydney to Taipei latency and RTT — 133.2 ms
Sydney to Hong Kong latency and RTT — 135.9 ms

Fastest routes arriving at New York (NYC)

Ashburn to New York latency and RTT — 6 ms
Miami to New York latency and RTT — 34 ms
Los Angeles to New York latency and RTT — 59 ms
Seattle to New York latency and RTT — 59 ms
London to New York latency and RTT — 63.5 ms

Same corridor (Asia Pacific → North America)

Tokyo to Seattle latency and RTT — 84.6 ms
Tokyo to Los Angeles latency and RTT — 101.5 ms
Taipei to Seattle latency and RTT — 115.7 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-nyc.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Sydney → New York round 2026-08-15T04:03:13Z, CC BY 4.0".

Data auto-generated on August 15, 2026. Explore the full interactive latency matrix or browse more city-pair routes.

Sydney, Australia → New York, USA RTT