Tokyo, Japan to Taipei, Taiwan ICMP RTT measurements: 32.3 ms average round-trip time, 0% packet loss, jitter, and route context.

🇯🇵 Tokyo, Japan (TYO) → 🇹🇼 Taipei, Taiwan (TPE)

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

For measurement round 2026-08-16T04:07:28Z, the ICMP echo RTT from Tokyo, Japan to Taipei averages 32.3 ms, with samples from 31.1 ms to 36.28 ms.

It is the fastest of the 19 outbound routes measured from Tokyo in this round. The standard deviation of 0.96 ms is about 3.0% of the average, below the 3.28% median standard-deviation-to-average ratio for the measured set; jitter is 0.75 ms and packet loss is 0%.

The observed RTT is 1.57 times the estimated fiber-floor time of 20.58 ms, a larger proportional overhead than long-haul paths, yet the absolute latency remains very low for the 2,101 km distance. Extremely low jitter and zero loss place this route at the top of the Excellent latency tier.

Latency Summary

Metric	Value
RTT	32.3 ms
Jitter	0.75 ms
Packet Loss	0%
Standard Fiber Floor	20.58 ms
Fiber Efficiency	63.7%
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: TYO → TPE

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 32.3 ± 0.14 ms (SE)

Sample distribution: box = interquartile range (31.6–32.7 ms), median 32.2 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 (20.6 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	31.17
2	100	31.49
3	200	31.57
4	300	32.26
5	400	32.43
6	500	31.64
7	600	36.28
8	700	33.66
9	800	32.40
10	900	32.69
11	1000	33.83
12	1100	32.34
13	1200	32.97
14	1300	33.78
15	1400	32.78
16	1500	33.31
17	1600	32.17
18	1700	31.77
19	1800	31.31
20	1900	31.23
21	2000	31.23
22	2100	31.16
23	2200	31.10
24	2300	31.17
25	2400	32.37
26	2500	32.34
27	2600	32.16
28	2700	31.45
29	2800	32.09
30	2900	31.65
31	3000	32.83
32	3100	32.10
33	3200	31.86
34	3300	32.54
35	3400	31.65
36	3500	32.36
37	3600	31.70
38	3700	31.90
39	3800	32.31
40	3900	32.48
41	4000	31.79
42	4100	32.05
43	4200	32.42
44	4300	34.43
45	4400	32.38
46	4500	33.71
47	4600	32.87
48	4700	32.81
49	4800	31.70
50	4900	31.31

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 Tokyo (35.68950, 139.69171) and Taipei (25.05306, 121.52639). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	2,101.2 km
Vacuum RTT floor	14.02 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	20.58 ms
Low-latency fiber material floor	20.49 ms
Engineering floor (5% path allowance)	21.61 ms
Research 1.33× mapped-fiber reference	27.37 ms
Estimated unamplified path loss	441.3 dB
Transparent optical spans / inline amplifiers	28 / 27
Published RTT inflation over fiber floor	1.57×

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	31.1 ms
Average RTT	32.3 ms
Maximum RTT	36.28 ms
Standard deviation	0.96 ms
Stdev / average	3.0%

RTT trend

Estimated route stability across the selected time window.

Average: 32.3 ms
Minimum: 32.0 ms
Maximum: 32.6 ms
Average loss: 0.01%

Route Context

Departure PoP: Tokyo (TYO)
Destination PoP: Taipei (TPE)
Region overview: Asia Pacific → Asia Pacific
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Taipei to Tokyo latency and RTT — 31.9 ms

Fastest routes departing Tokyo (TYO)

Tokyo to Hong Kong latency and RTT — 44.8 ms
Tokyo to Singapore latency and RTT — 69.4 ms
Tokyo to Seattle latency and RTT — 84.8 ms
Tokyo to Los Angeles latency and RTT — 101.2 ms
Tokyo to Sydney latency and RTT — 101.9 ms

Fastest routes arriving at Taipei (TPE)

Hong Kong to Taipei latency and RTT — 14.7 ms
Singapore to Taipei latency and RTT — 45.8 ms
Seattle to Taipei latency and RTT — 114.7 ms
Sydney to Taipei latency and RTT — 131.7 ms
Moscow to Taipei latency and RTT — 132.1 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/tyo-tpe.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Tokyo → Taipei 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.

Tokyo, Japan → Taipei, Taiwan RTT