Live ICMP RTT measurements between Hong Kong, Hong Kong and Singapore, Singapore, covering latency, jitter, packet loss and route efficiency.

🇭🇰 Hong Kong (HKG) → 🇸🇬 Singapore (SIN)

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

ICMP echo RTT from Hong Kong to Singapore averaged 31.5 ms across 50 samples, with a minimum of 29.73 ms and a maximum of 35.06 ms. There was no packet loss, and jitter measured 1.16 ms, keeping the route within the excellent latency tier.

Over the 2,577.2 km great-circle distance, the observed average is 1.25 times the 25.24 ms fiber floor, which places fiber efficiency at 80.1 percent. The tight standard deviation of 1.22 ms reinforces that the route is both quick and stable.

This path ranks second among the 19 outbound routes from Hong Kong in measurement round 2026-08-16T04:07:28Z. The median standard deviation as a share of average RTT for those routes is 3.28 percent, while this route's standard deviation works out to about 3.9 percent of its average, so it tracks closely to the group's typical variability.

Latency Summary

Metric	Value
RTT	31.5 ms
Jitter	1.16 ms
Packet Loss	0%
Standard Fiber Floor	25.24 ms
Fiber Efficiency	80.1%
Latency Tier	Excellent
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: HKG → SIN

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 31.5 ± 0.17 ms (SE)

Sample distribution: box = interquartile range (30.6–32.2 ms), median 31.3 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 (25.2 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	30.61
2	100	34.29
3	200	31.34
4	300	30.23
5	400	30.91
6	500	31.28
7	600	31.97
8	700	30.46
9	800	31.37
10	900	33.16
11	1000	30.86
12	1100	30.05
13	1200	31.40
14	1300	30.26
15	1400	30.84
16	1500	30.27
17	1600	31.19
18	1700	32.84
19	1800	31.81
20	1900	30.74
21	2000	30.98
22	2100	31.53
23	2200	30.36
24	2300	29.88
25	2400	30.05
26	2500	30.46
27	2600	32.28
28	2700	30.93
29	2800	32.23
30	2900	33.58
31	3000	35.06
32	3100	31.91
33	3200	32.40
34	3300	32.33
35	3400	33.80
36	3500	31.29
37	3600	31.23
38	3700	33.87
39	3800	32.04
40	3900	33.44
41	4000	32.26
42	4100	31.02
43	4200	30.58
44	4300	29.95
45	4400	29.73
46	4500	30.74
47	4600	31.80
48	4700	31.33
49	4800	31.66
50	4900	30.40

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 Hong Kong (22.27832, 114.17469) and Singapore (1.28967, 103.85007). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	2,577.2 km
Vacuum RTT floor	17.19 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	25.24 ms
Low-latency fiber material floor	25.14 ms
Engineering floor (5% path allowance)	26.5 ms
Research 1.33× mapped-fiber reference	33.57 ms
Estimated unamplified path loss	541.2 dB
Transparent optical spans / inline amplifiers	34 / 33
Published RTT inflation over fiber floor	1.25×

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	29.73 ms
Average RTT	31.5 ms
Maximum RTT	35.06 ms
Standard deviation	1.22 ms
Stdev / average	3.9%

RTT trend

Estimated route stability across the selected time window.

Average: 31.5 ms
Minimum: 31.2 ms
Maximum: 31.8 ms
Average loss: 0.02%

Route Context

Departure PoP: Hong Kong (HKG)
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 Hong Kong latency and RTT — 30.8 ms

Fastest routes departing Hong Kong (HKG)

Hong Kong to Taipei latency and RTT — 14.7 ms
Hong Kong to Tokyo latency and RTT — 44.9 ms
Hong Kong to Moscow latency and RTT — 118.2 ms
Hong Kong to Seattle latency and RTT — 131.6 ms
Hong Kong to Sydney latency and RTT — 137.2 ms

Fastest routes arriving at Singapore (SIN)

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
Sydney to Singapore latency and RTT — 94.5 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
Sydney to Melbourne latency and RTT — 9.8 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/hkg-sin.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Hong Kong → 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.

Hong Kong → Singapore RTT