Explore Singapore to Sydney, Australia ICMP RTT, jitter, packet loss and fiber latency limits on the AS203314 network. View route data.

🇸🇬 Singapore (SIN) → 🇦🇺 Sydney, Australia (SYD)

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

Singapore to Sydney averaged 94.5 ms across 50 replies. The observed range was 92.37 to 99.4 ms; these figures describe one probe round, not a long-term service target.

This is number 5 of 19 outgoing routes by average RTT. That ranking compares different destinations and is not adjusted for distance.

Latency Summary

Metric	Value
RTT	94.5 ms
Jitter	1.47 ms
Packet Loss	0%
Standard Fiber Floor	61.63 ms
Fiber Efficiency	65.2%
Latency Tier	Good
Source Region	Asia Pacific
Destination Region	Asia Pacific

Ping Measurement Series

50 ICMP echo probes were recorded in this round. Individual replies and their distribution are shown below.

Ping series: SIN → SYD

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 94.5 ± 0.25 ms (SE)

Sample distribution: box = interquartile range (93.2–95.2 ms), median 93.9 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 (61.6 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	99.16
2	100	94.72
3	200	93.89
4	300	93.04
5	400	92.75
6	500	95.75
7	600	96.18
8	700	95.77
9	800	93.42
10	900	93.05
11	1000	92.56
12	1100	92.56
13	1200	93.57
14	1300	93.32
15	1400	92.85
16	1500	94.76
17	1600	93.21
18	1700	96.14
19	1800	94.41
20	1900	95.11
21	2000	93.30
22	2100	93.71
23	2200	92.80
24	2300	98.51
25	2400	94.69
26	2500	93.82
27	2600	93.25
28	2700	93.74
29	2800	93.51
30	2900	95.53
31	3000	94.85
32	3100	97.91
33	3200	98.23
34	3300	94.86
35	3400	93.67
36	3500	93.33
37	3600	93.67
38	3700	95.17
39	3800	94.69
40	3900	96.72
41	4000	94.09
42	4100	93.18
43	4200	93.01
44	4300	92.72
45	4400	92.37
46	4500	94.65
47	4600	99.40
48	4700	96.16
49	4800	94.27
50	4900	92.97

Download This Route's Data

Download the probe round as CSV, JSON or YAML under CC BY 4.0. Citation details include the route and round timestamp.

CSV JSON YAML Full dataset

Theoretical Fiber Latency

The propagation model uses public city-centre coordinates from GeoNames: Singapore (1.28967, 103.85007) and Sydney (-33.86785, 151.20732). These are not facility coordinates or a surveyed cable path.

Physical Reference	Value
WGS-84 geodesic distance	6,293.5 km
Vacuum RTT floor	41.99 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	61.63 ms
Low-latency fiber material floor	61.38 ms
Engineering floor (5% path allowance)	64.72 ms
Research 1.33× mapped-fiber reference	81.97 ms
Estimated unamplified path loss	1321.6 dB
Transparent optical spans / inline amplifiers	83 / 82
Published RTT inflation over fiber floor	1.53×

The span count assumes 80 km optical spans. Attenuation is a power-loss term, not a propagation delay. See the model assumptions and equations.

Stability & Trend

Statistics from the same 50 replies. They describe this probe round, not continuous historical monitoring.

Round Statistic	Value
Minimum RTT	92.37 ms
Average RTT	94.5 ms
Maximum RTT	99.4 ms
Standard deviation	1.76 ms
Stdev / average	1.9%

Estimated RTT trend

Modeled comparison, not historical probe measurements.

Average: 94.6 ms
Minimum: 93.5 ms
Maximum: 95.5 ms
Average loss: 0.02%

Route Context

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

Reverse direction

Sydney to Singapore latency and RTT: 94.5 ms

Fastest routes departing Singapore (SIN)

Singapore to Hong Kong latency and RTT: 30.8 ms
Singapore to Taipei latency and RTT: 45.8 ms
Singapore to Tokyo latency and RTT: 68.9 ms
Singapore to Melbourne latency and RTT: 88.6 ms
Singapore to Marseille latency and RTT: 140.6 ms

Fastest routes arriving at Sydney (SYD)

Melbourne to Sydney latency and RTT: 9.8 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
Los Angeles to Sydney latency and RTT: 137.6 ms

Same corridor (Asia Pacific → Asia Pacific)

Sydney to Melbourne latency and RTT: 9.8 ms
Hong Kong to Taipei latency and RTT: 14.7 ms
Taipei to Hong Kong latency and RTT: 15.5 ms

About This Measurement

These ICMP measurements cover the two backbone endpoints. Access networks, routing policy and load can change an end user's result. A probe round is not an SLA.

The underlying replies are available under CC BY 4.0 in the Hats Network latency dataset. Per-pair files are available at /opendata/latency/latest/pairs/sin-syd.pings.{csv,json,yaml}. Cite the route, round timestamp and dataset version. Example: "Hats Network latency dataset, Singapore → Sydney round 2026-08-16T04:07:28Z, CC BY 4.0".

Round published August 16, 2026. See the full interactive latency matrix or browse more city-pair routes.

Singapore → Sydney, Australia RTT