Sydney to Singapore ICMP RTT from round 2026-08-16T04:07:28Z: average delay, loss, jitter, and fiber efficiency on the Australia-Singapore route.

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

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

In the 2026-08-16T04:07:28Z round, ICMP echo probes from Sydney to Singapore averaged 94.5 ms over 50 samples, with a minimum of 89.04 ms and a maximum of 106.31 ms.

The 3.56 ms standard deviation and 3.48 ms jitter show a stable long-haul path, and all 50 samples returned with zero packet loss. Against the 6,293.5 km geodesic distance, the measured RTT is 1.53 times the theoretical fiber floor, corresponding to about 65.2% fiber efficiency.

It ranked second among the 19 outbound routes in the same round; its standard deviation is about 3.8% of its average, slightly above the network-wide median route variability of 3.28%. A consistent sub-100 ms average and zero packet loss make this a dependable reference for long-haul RTT from Sydney to Singapore.

Latency Summary

Metric	Value
RTT	94.5 ms
Jitter	3.48 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

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 → SIN

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 94.5 ± 0.50 ms (SE)

Sample distribution: box = interquartile range (92.1–96.1 ms), median 93.7 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	89.04
2	100	92.07
3	200	90.70
4	300	98.47
5	400	92.66
6	500	94.95
7	600	92.96
8	700	95.94
9	800	96.54
10	900	97.13
11	1000	93.81
12	1100	92.40
13	1200	90.86
14	1300	99.11
15	1400	93.53
16	1500	95.03
17	1600	96.01
18	1700	97.63
19	1800	94.59
20	1900	103.06
21	2000	96.78
22	2100	92.68
23	2200	106.31
24	2300	95.37
25	2400	91.68
26	2500	89.91
27	2600	93.63
28	2700	95.41
29	2800	93.64
30	2900	94.79
31	3000	91.01
32	3100	92.75
33	3200	93.56
34	3300	92.59
35	3400	91.92
36	3500	94.05
37	3600	90.78
38	3700	89.68
39	3800	103.66
40	3900	96.18
41	4000	95.95
42	4100	94.75
43	4200	91.39
44	4300	90.24
45	4400	92.72
46	4500	97.75
47	4600	97.56
48	4700	98.91
49	4800	92.35
50	4900	90.51

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 Singapore (1.28967, 103.85007). It does not disclose either facility address.

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×

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	89.04 ms
Average RTT	94.5 ms
Maximum RTT	106.31 ms
Standard deviation	3.56 ms
Stdev / average	3.8%

RTT trend

Estimated route stability across the selected time window.

Average: 94.5 ms
Minimum: 93.6 ms
Maximum: 95.5 ms
Average loss: 0.02%

Route Context

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

Reverse direction

Singapore to Sydney latency and RTT — 94.5 ms

Fastest routes departing Sydney (SYD)

Sydney to Melbourne latency and RTT — 9.8 ms
Sydney to Tokyo latency and RTT — 101.3 ms
Sydney to Taipei latency and RTT — 131.7 ms
Sydney to Hong Kong latency and RTT — 135.7 ms
Sydney to Los Angeles latency and RTT — 136.5 ms

Fastest routes arriving at Singapore (SIN)

Hong Kong to Singapore latency and RTT — 31.5 ms
Taipei to Singapore latency and RTT — 44.3 ms
Tokyo to Singapore latency and RTT — 69.4 ms
Melbourne to Singapore latency and RTT — 88.4 ms
Marseille to Singapore latency and RTT — 139.6 ms

Same corridor (Asia Pacific → Asia Pacific)

Melbourne to Sydney 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

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-sin.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Sydney → Singapore 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.

Sydney, Australia → Singapore RTT