Ashburn to Taipei latency report: ICMP round-trip time, packet loss, jitter and distance analysis for the USA-Taiwan route.

🇺🇸 Ashburn, USA (IAD) → 🇹🇼 Taipei, Taiwan (TPE)

Measurement round: 2026-08-15T04:03:13Z.

In the 2026-08-15T04:03:13Z measurement round, ICMP echo probes between Ashburn, USA and Taipei, Taiwan returned an average round-trip time of 172 ms, with a minimum of 167.09 ms and a maximum of 187.27 ms; all 50 samples arrived without packet loss.

The 12,639.6 km great-circle distance corresponds to a fiber-floor RTT of about 123.78 ms, meaning the measured average carries a 1.39 times overhead and a 72% fiber-efficiency score. At 3.55 ms standard deviation and 3.09 ms jitter, this route is steadier than the network's median variability of 3.08% of average RTT.

Ranked 14th of 19 outbound routes for this round, Taipei is mid-pack on average latency, but its low jitter and clean loss profile make it a dependable path for round-trip time measurements. Because the observed RTT is already within reach of the straight-line fiber floor, the main limit on this route is distance rather than variability.

Latency Summary

Metric	Value
RTT	172 ms
Jitter	3.09 ms
Packet Loss	0%
Standard Fiber Floor	123.78 ms
Fiber Efficiency	72%
Latency Tier	Fair
Source Region	North America
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: IAD → TPE

50 ICMP echo samples at 100 ms intervals · round 2026-08-15T04:03:13Z · avg 172.0 ± 0.50 ms (SE)

Sample distribution: box = interquartile range (169.4–174.0 ms), median 171.2 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 (123.8 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	169.66
2	100	169.30
3	200	169.17
4	300	169.10
5	400	175.17
6	500	170.11
7	600	172.20
8	700	169.47
9	800	168.21
10	900	175.02
11	1000	171.86
12	1100	173.68
13	1200	170.56
14	1300	170.83
15	1400	174.16
16	1500	174.16
17	1600	172.23
18	1700	175.87
19	1800	175.57
20	1900	171.74
21	2000	168.96
22	2100	167.84
23	2200	167.09
24	2300	167.38
25	2400	167.92
26	2500	170.30
27	2600	174.55
28	2700	173.53
29	2800	169.38
30	2900	172.25
31	3000	170.56
32	3100	176.21
33	3200	187.27
34	3300	174.36
35	3400	171.67
36	3500	170.53
37	3600	169.38
38	3700	168.34
39	3800	173.46
40	3900	178.69
41	4000	171.16
42	4100	170.81
43	4200	170.70
44	4300	168.44
45	4400	171.21
46	4500	176.86
47	4600	171.81
48	4700	170.61
49	4800	178.01
50	4900	172.65

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 Ashburn (39.04372, -77.48749) and Taipei (25.05306, 121.52639). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	12,639.6 km
Vacuum RTT floor	84.32 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	123.78 ms
Low-latency fiber material floor	123.28 ms
Engineering floor (5% path allowance)	129.98 ms
Research 1.33× mapped-fiber reference	164.62 ms
Estimated unamplified path loss	2654.3 dB
Transparent optical spans / inline amplifiers	166 / 165
Published RTT inflation over fiber floor	1.39×

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 (2026-08-15T04:03:13Z) collected 50 ICMP echo samples on this route. Distribution statistics from that round:

Round Statistic	Value
Minimum RTT	167.09 ms
Average RTT	172 ms
Maximum RTT	187.27 ms
Standard deviation	3.55 ms
Stdev / average	2.1%

RTT trend

Estimated route stability across the selected time window.

Average: 171.8 ms
Minimum: 170.2 ms
Maximum: 173.6 ms
Average loss: 0.02%

Route Context

Departure PoP: Ashburn (IAD)
Destination PoP: Taipei (TPE)
Region overview: North America → Asia Pacific
Corridor overview: North America to Asia Pacific
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Taipei to Ashburn latency and RTT — 173.2 ms

Fastest routes departing Ashburn (IAD)

Ashburn to New York latency and RTT — 6 ms
Ashburn to Miami latency and RTT — 28.6 ms
Ashburn to Los Angeles latency and RTT — 60 ms
Ashburn to Seattle latency and RTT — 61.3 ms
Ashburn to London latency and RTT — 70.4 ms

Fastest routes arriving at Taipei (TPE)

Hong Kong to Taipei latency and RTT — 15.2 ms
Tokyo to Taipei latency and RTT — 32.1 ms
Singapore to Taipei latency and RTT — 44.3 ms
Seattle to Taipei latency and RTT — 115.1 ms
Moscow to Taipei latency and RTT — 130.9 ms

Same corridor (North America → Asia Pacific)

Seattle to Tokyo latency and RTT — 84.8 ms
Los Angeles to Tokyo latency and RTT — 100.9 ms
Seattle to Hong Kong latency and RTT — 130.7 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/iad-tpe.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Ashburn → Taipei round 2026-08-15T04:03:13Z, CC BY 4.0".

Data auto-generated on August 15, 2026. Explore the full interactive latency matrix or browse more city-pair routes.

Ashburn, USA → Taipei, Taiwan RTT