Explore Marseille, France to São Paulo, Brazil ICMP RTT, jitter, packet loss and fiber latency limits on the AS203314 network.

🇫🇷 Marseille, France (MRS) → 🇧🇷 São Paulo, Brazil (GRU)

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

Marseille to São Paulo averaged 186.7 ms, compared with a 89.24 ms city-centre fiber reference. The difference cannot be assigned to a particular cable or carrier from RTT alone.

Standard deviation was 7.56 ms, or 4.0% of the average. This describes variation within the sample without identifying its cause.

Latency Summary

Metric	Value
RTT	186.7 ms
Jitter	6.61 ms
Packet Loss	0%
Standard Fiber Floor	89.24 ms
Fiber Efficiency	47.8%
Latency Tier	Fair
Source Region	Europe
Destination Region	South America

Ping Measurement Series

50 ICMP echo probes were recorded in this round. Individual replies and their distribution are shown below.

Ping series: MRS → GRU

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 186.7 ± 1.07 ms (SE)

Sample distribution: box = interquartile range (181.9–190.2 ms), median 183.8 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 (89.2 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	176.61
2	100	183.28
3	200	182.62
4	300	183.45
5	400	199.73
6	500	185.81
7	600	190.70
8	700	186.27
9	800	181.26
10	900	183.64
11	1000	182.08
12	1100	192.91
13	1200	185.48
14	1300	190.21
15	1400	215.07
16	1500	190.22
17	1600	188.63
18	1700	180.89
19	1800	183.56
20	1900	180.80
21	2000	179.39
22	2100	183.72
23	2200	185.21
24	2300	182.84
25	2400	183.79
26	2500	196.90
27	2600	189.03
28	2700	190.85
29	2800	183.74
30	2900	182.65
31	3000	181.01
32	3100	190.90
33	3200	181.84
34	3300	187.96
35	3400	187.10
36	3500	181.44
37	3600	184.95
38	3700	180.24
39	3800	180.45
40	3900	179.75
41	4000	177.90
42	4100	178.86
43	4200	206.08
44	4300	190.74
45	4400	182.20
46	4500	182.38
47	4600	204.29
48	4700	196.50
49	4800	194.58
50	4900	184.49

Download This Route's Data

Download the probe round as CSV, JSON or YAML under CC BY 4.0. Citation details include the route and round timestamp.

CSV JSON YAML Full dataset

Theoretical Fiber Latency

The propagation model uses public city-centre coordinates from GeoNames: Marseille (43.29695, 5.38107) and São Paulo (-23.54750, -46.63611). These are not facility coordinates or a surveyed cable path.

Physical Reference	Value
WGS-84 geodesic distance	9,113 km
Vacuum RTT floor	60.8 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	89.24 ms
Low-latency fiber material floor	88.88 ms
Engineering floor (5% path allowance)	93.72 ms
Research 1.33× mapped-fiber reference	118.69 ms
Estimated unamplified path loss	1913.7 dB
Transparent optical spans / inline amplifiers	120 / 119
Published RTT inflation over fiber floor	2.09×

The span count assumes 80 km optical spans. Attenuation is a power-loss term, not a propagation delay. See the model assumptions and equations.

Stability & Trend

Statistics from the same 50 replies. They describe this probe round, not continuous historical monitoring.

Round Statistic	Value
Minimum RTT	176.61 ms
Average RTT	186.7 ms
Maximum RTT	215.07 ms
Standard deviation	7.56 ms
Stdev / average	4.0%

Estimated RTT trend

Modeled comparison, not historical probe measurements.

Average: 186.6 ms
Minimum: 185.0 ms
Maximum: 188.4 ms
Average loss: 0.02%

Route Context

Departure PoP: Marseille (MRS)
Destination PoP: São Paulo (GRU)
Region overview: Europe → South America
Corridor overview: Europe to South America
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

São Paulo to Marseille latency and RTT: 187.7 ms

Fastest routes departing Marseille (MRS)

Marseille to Paris latency and RTT: 8.9 ms
Marseille to Frankfurt latency and RTT: 16 ms
Marseille to London latency and RTT: 18.9 ms
Marseille to Amsterdam latency and RTT: 20.3 ms
Marseille to Berlin latency and RTT: 20.6 ms

Fastest routes arriving at São Paulo (GRU)

Ashburn to São Paulo latency and RTT: 101.4 ms
New York to São Paulo latency and RTT: 106.9 ms
Miami to São Paulo latency and RTT: 128.7 ms
Los Angeles to São Paulo latency and RTT: 131.3 ms
Seattle to São Paulo latency and RTT: 155.7 ms

Same corridor (Europe → South America)

London to São Paulo latency and RTT: 170.7 ms
Amsterdam to São Paulo latency and RTT: 175.5 ms
Paris to São Paulo latency and RTT: 175.8 ms

About This Measurement

These ICMP measurements cover the two backbone endpoints. Access networks, routing policy and load can change an end user's result. A probe round is not an SLA.

The underlying replies are available under CC BY 4.0 in the Hats Network latency dataset. Per-pair files are available at /opendata/latency/latest/pairs/mrs-gru.pings.{csv,json,yaml}. Cite the route, round timestamp and dataset version. Example: "Hats Network latency dataset, Marseille → São Paulo round 2026-08-16T04:07:28Z, CC BY 4.0".

Round published August 16, 2026. See the full interactive latency matrix or browse more city-pair routes.

Marseille, France → São Paulo, Brazil RTT