ICMP RTT measurement page for Marseille, France to Tokyo, Japan: 50-sample average, jitter, packet loss, minimum and maximum latency for this route

🇫🇷 Marseille, France (MRS) → 🇯🇵 Tokyo, Japan (TYO)

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

In the 2026-08-15T04:03:13Z round, ICMP echo round-trip time from Marseille, France to Tokyo, Japan averaged 206 ms across 50 samples, with a minimum of 198.8 ms, a maximum of 221.27 ms and zero packet loss.

Variability was modest: standard deviation was 5.74 ms and jitter was 6.17 ms, placing the route in the Fair latency tier. This path ranked 17th among the 19 paths in its measured set; the median variability across that set was 3.08 percent of average RTT, while this route's spread is about 2.8 percent of its average, so the delay stays steady despite the long distance.

At 10,112.8 km great-circle distance, the observed average is 2.08 times the theoretical fiber floor of 99.03 ms, and the route operates at 48.1 percent fiber efficiency. The combination of zero loss and stable Fair-tier latency gives a useful reference for Mediterranean-East Asia round-trip behavior.

Latency Summary

Metric	Value
RTT	206 ms
Jitter	6.17 ms
Packet Loss	0%
Standard Fiber Floor	99.03 ms
Fiber Efficiency	48.1%
Latency Tier	Fair
Source Region	Europe
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: MRS → TYO

50 ICMP echo samples at 100 ms intervals · round 2026-08-15T04:03:13Z · avg 206.0 ± 0.81 ms (SE)

Sample distribution: box = interquartile range (202.1–207.7 ms), median 205.1 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 (99.0 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	206.90
2	100	203.48
3	200	216.12
4	300	208.58
5	400	206.76
6	500	205.60
7	600	206.33
8	700	202.14
9	800	206.02
10	900	205.11
11	1000	200.87
12	1100	217.68
13	1200	205.29
14	1300	200.71
15	1400	221.27
16	1500	207.45
17	1600	203.54
18	1700	201.39
19	1800	219.22
20	1900	209.34
21	2000	203.09
22	2100	199.98
23	2200	199.21
24	2300	206.79
25	2400	202.22
26	2500	201.00
27	2600	205.29
28	2700	202.89
29	2800	203.89
30	2900	200.41
31	3000	216.82
32	3100	207.99
33	3200	207.84
34	3300	205.12
35	3400	202.18
36	3500	207.84
37	3600	218.69
38	3700	205.01
39	3800	210.33
40	3900	203.41
41	4000	201.20
42	4100	202.74
43	4200	199.73
44	4300	204.57
45	4400	218.95
46	4500	205.85
47	4600	201.06
48	4700	198.80
49	4800	199.14
50	4900	204.16

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 Marseille (43.29695, 5.38107) and Tokyo (35.68950, 139.69171). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	10,112.8 km
Vacuum RTT floor	67.47 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	99.03 ms
Low-latency fiber material floor	98.63 ms
Engineering floor (5% path allowance)	104 ms
Research 1.33× mapped-fiber reference	131.71 ms
Estimated unamplified path loss	2123.7 dB
Transparent optical spans / inline amplifiers	133 / 132
Published RTT inflation over fiber floor	2.08×

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	198.8 ms
Average RTT	206 ms
Maximum RTT	221.27 ms
Standard deviation	5.74 ms
Stdev / average	2.8%

RTT trend

Estimated route stability across the selected time window.

Average: 206.5 ms
Minimum: 203.9 ms
Maximum: 208.3 ms
Average loss: 0.02%

Route Context

Departure PoP: Marseille (MRS)
Destination PoP: Tokyo (TYO)
Region overview: Europe → Asia Pacific
Corridor overview: Europe to Asia Pacific
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Tokyo to Marseille latency and RTT — 206.7 ms

Fastest routes departing Marseille (MRS)

Marseille to Paris latency and RTT — 8.9 ms
Marseille to Frankfurt latency and RTT — 17.5 ms
Marseille to Amsterdam latency and RTT — 19.6 ms
Marseille to Berlin latency and RTT — 21.5 ms
Marseille to London latency and RTT — 24.5 ms

Fastest routes arriving at Tokyo (TYO)

Taipei to Tokyo latency and RTT — 31.6 ms
Hong Kong to Tokyo latency and RTT — 45 ms
Singapore to Tokyo latency and RTT — 69.6 ms
Seattle to Tokyo latency and RTT — 84.8 ms
Los Angeles to Tokyo latency and RTT — 100.9 ms

Same corridor (Europe → Asia Pacific)

Moscow to Hong Kong latency and RTT — 118.5 ms
Moscow to Taipei latency and RTT — 130.9 ms
Marseille to Singapore latency and RTT — 138.5 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/mrs-tyo.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Marseille → Tokyo 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.

Marseille, France → Tokyo, Japan RTT