ICMP RTT measurements between São Paulo, Brazil and Miami, USA: average, minimum, maximum, jitter, packet loss, and fiber efficiency.

🇧🇷 São Paulo, Brazil (GRU) → 🇺🇸 Miami, USA (MIA)

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

In the 2026-08-16T04:07:28Z measurement round, ICMP echo requests between São Paulo, Brazil and Miami, USA averaged 74ms over 50 samples, with a minimum of 70.55ms and a maximum of 83.79ms. The 3.07ms standard deviation and 2.29ms jitter show a stable profile, and packet loss was zero.

That 74ms average is only about 15% above the theoretical fiber floor of 64.11ms for the 6,546.4km great-circle distance, yielding an 86.6% fiber efficiency. The route is running close to the propagation limit for light in fiber, leaving little room for latency improvement on this geography.

This path ranks first among the 19 outbound routes in the round, while its variability ratio of about 4.1% sits slightly above the network median of 3.28%. With an Excellent latency tier, no loss, and very low jitter, this is a strong reference for São Paulo-to-Miami connectivity.

Latency Summary

Metric	Value
RTT	74 ms
Jitter	2.29 ms
Packet Loss	0%
Standard Fiber Floor	64.11 ms
Fiber Efficiency	86.6%
Latency Tier	Excellent
Source Region	South America
Destination Region	North America

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: GRU → MIA

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 74.0 ± 0.43 ms (SE)

Sample distribution: box = interquartile range (71.7–75.9 ms), median 73.2 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 (64.1 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	73.02
2	100	71.66
3	200	71.11
4	300	72.32
5	400	71.08
6	500	73.37
7	600	76.70
8	700	73.35
9	800	74.68
10	900	72.02
11	1000	72.05
12	1100	76.30
13	1200	82.37
14	1300	76.62
15	1400	83.79
16	1500	78.11
17	1600	73.23
18	1700	74.67
19	1800	75.63
20	1900	73.77
21	2000	71.43
22	2100	71.90
23	2200	73.07
24	2300	72.95
25	2400	75.90
26	2500	74.23
27	2600	72.76
28	2700	71.73
29	2800	70.85
30	2900	70.55
31	3000	72.90
32	3100	71.09
33	3200	70.56
34	3300	71.04
35	3400	70.58
36	3500	71.39
37	3600	73.51
38	3700	76.55
39	3800	76.84
40	3900	76.96
41	4000	73.46
42	4100	72.02
43	4200	71.03
44	4300	70.89
45	4400	75.81
46	4500	72.60
47	4600	77.56
48	4700	74.34
49	4800	81.29
50	4900	78.36

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 São Paulo (-23.54750, -46.63611) and Miami (25.77427, -80.19366). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	6,546.4 km
Vacuum RTT floor	43.67 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	64.11 ms
Low-latency fiber material floor	63.85 ms
Engineering floor (5% path allowance)	67.32 ms
Research 1.33× mapped-fiber reference	85.26 ms
Estimated unamplified path loss	1374.7 dB
Transparent optical spans / inline amplifiers	86 / 85
Published RTT inflation over fiber floor	1.15×

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	70.55 ms
Average RTT	74 ms
Maximum RTT	83.79 ms
Standard deviation	3.07 ms
Stdev / average	4.1%

RTT trend

Estimated route stability across the selected time window.

Average: 74.1 ms
Minimum: 73.3 ms
Maximum: 74.8 ms
Average loss: 0.02%

Route Context

Departure PoP: São Paulo (GRU)
Destination PoP: Miami (MIA)
Region overview: South America → North America
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Miami to São Paulo latency and RTT — 128.7 ms

Fastest routes departing São Paulo (GRU)

São Paulo to New York latency and RTT — 122 ms
São Paulo to Ashburn latency and RTT — 128 ms
São Paulo to Los Angeles latency and RTT — 130.8 ms
São Paulo to Seattle latency and RTT — 155.9 ms
São Paulo to London latency and RTT — 175.8 ms

Fastest routes arriving at Miami (MIA)

Ashburn to Miami latency and RTT — 27.4 ms
New York to Miami latency and RTT — 32.9 ms
Los Angeles to Miami latency and RTT — 57.3 ms
Seattle to Miami latency and RTT — 81.7 ms
London to Miami latency and RTT — 101.9 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/gru-mia.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, São Paulo → Miami 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.

São Paulo, Brazil → Miami, USA RTT