Singapore to Melbourne ping and RTT: 88.1 ms, 2.75 ms jitter, 59.22 ms fiber floor, and 67.2% efficiency across AS203314. Updated 2026-08-09.

🇸🇬 This page compares the published ping and round-trip time (RTT) from Singapore (SIN) to 🇦🇺 Melbourne (MEL) with vacuum and optical-fiber physical limits.

As of August 9, 2026, the Singapore → Melbourne route on Hats Network averages 88.1 ms RTT across a 50-sample daily ICMP echo measurement round (source: GSL), 1.49× the theoretical fiber-floor limit of 59.22 ms.

Among the 19 measured routes departing Singapore, this route ranks 4th fastest by average RTT.

With a stdev-to-average ratio of 3.9%, 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 83.91 ms to 98.04 ms with a standard deviation of 3.47 ms.

Latency Summary

Metric	Value
RTT	88.1 ms
Jitter	2.75 ms
Packet Loss	0%
Standard Fiber Floor	59.22 ms
Fiber Efficiency	67.2%
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: SIN → MEL

50 ICMP echo samples at 100 ms intervals · round 2026-08-09 · avg 88.1 ± 0.49 ms (SE)

Sample distribution: box = interquartile range (85.3–89.1 ms), median 87.4 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 (59.2 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	89.30
2	100	87.45
3	200	87.10
4	300	91.83
5	400	91.62
6	500	86.46
7	600	84.41
8	700	84.10
9	800	84.65
10	900	85.32
11	1000	84.00
12	1100	83.99
13	1200	84.46
14	1300	87.38
15	1400	87.61
16	1500	86.66
17	1600	84.51
18	1700	83.91
19	1800	95.35
20	1900	87.84
21	2000	85.95
22	2100	88.48
23	2200	94.00
24	2300	92.57
25	2400	89.16
26	2500	89.08
27	2600	89.02
28	2700	96.00
29	2800	88.44
30	2900	98.04
31	3000	92.42
32	3100	95.04
33	3200	88.16
34	3300	88.82
35	3400	85.87
36	3500	86.00
37	3600	87.40
38	3700	85.28
39	3800	85.00
40	3900	84.39
41	4000	85.12
42	4100	87.70
43	4200	85.03
44	4300	89.11
45	4400	87.07
46	4500	91.84
47	4600	91.25
48	4700	86.38
49	4800	89.11
50	4900	85.32

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 Singapore (1.28967, 103.85007) and Melbourne (-37.81400, 144.96332). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	6,046.9 km
Vacuum RTT floor	40.34 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	59.22 ms
Low-latency fiber material floor	58.98 ms
Engineering floor (5% path allowance)	62.18 ms
Research 1.33× mapped-fiber reference	78.76 ms
Estimated unamplified path loss	1269.9 dB
Transparent optical spans / inline amplifiers	80 / 79
Published RTT inflation over fiber floor	1.49×

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	83.91 ms
Average RTT	88.1 ms
Maximum RTT	98.04 ms
Standard deviation	3.47 ms
Stdev / average	3.9%

RTT trend

Estimated route stability across the selected time window.

Average: 88.1 ms
Minimum: 87.3 ms
Maximum: 89.0 ms
Average loss: 0.01%

Route Context

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

Reverse direction

Melbourne to Singapore latency and RTT — 88.6 ms

Fastest routes departing Singapore (SIN)

Singapore to Hong Kong latency and RTT — 31.1 ms
Singapore to Taipei latency and RTT — 44.2 ms
Singapore to Tokyo latency and RTT — 69.8 ms
Singapore to Sydney latency and RTT — 94.3 ms
Singapore to Marseille latency and RTT — 139.8 ms

Fastest routes arriving at Melbourne (MEL)

Sydney to Melbourne latency and RTT — 9.8 ms
Tokyo to Melbourne latency and RTT — 110.8 ms
Hong Kong to Melbourne latency and RTT — 126.8 ms
Taipei to Melbourne latency and RTT — 140.9 ms
Los Angeles to Melbourne latency and RTT — 146.6 ms

Same corridor (Asia Pacific → Asia Pacific)

Melbourne to Sydney latency and RTT — 9.8 ms
Taipei to Hong Kong latency and RTT — 14.7 ms
Hong Kong to Taipei latency and RTT — 14.8 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/sin-mel.pings.{csv,json,yaml}. When citing, include the route, the measurement round date, and the dataset version — for example: "Hats Network latency dataset, Singapore → Melbourne 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.

Singapore to Melbourne Latency, Ping & RTT | AS203314