São Paulo, Brazil to Singapore ICMP round-trip time measurements covering average, minimum, maximum RTT, jitter, packet loss, and route context.

🇧🇷 São Paulo, Brazil (GRU) → 🇸🇬 Singapore (SIN)

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

In the 2026-08-15T04:03:13Z measurement round, São Paulo to Singapore produced an average ICMP echo RTT of 295.1 ms, with a minimum of 281.63 ms, a maximum of 331.92 ms, and no packet loss across 50 probes.

The great-circle distance is 15,998.2 km and the straight-line fiber floor is 156.67 ms, so the observed average is 1.88 times the floor, a 53.1% efficiency. The route ranked 18th among the 19 outbound routes in the same round.

Standard deviation was 12.04 ms, or about 4.1% of the average, while the median variability across the 19 outbound routes was 3.08%; jitter was 7.32 ms. The path is therefore more variable than the typical outbound route in the round.

The 50.29 ms spread between minimum and maximum is worth considering alongside the 7.32 ms jitter, even though no probes were lost. As with all ICMP RTT data, this should not be used to infer end-user application performance.

Latency Summary

Metric	Value
RTT	295.1 ms
Jitter	7.32 ms
Packet Loss	0%
Standard Fiber Floor	156.67 ms
Fiber Efficiency	53.1%
Latency Tier	High
Source Region	South 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: GRU → SIN

50 ICMP echo samples at 100 ms intervals · round 2026-08-15T04:03:13Z · avg 295.1 ± 1.70 ms (SE)

Sample distribution: box = interquartile range (286.7–299.4 ms), median 290.9 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 (156.7 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	314.14
2	100	305.87
3	200	290.63
4	300	285.81
5	400	288.55
6	500	287.44
7	600	283.08
8	700	282.63
9	800	295.01
10	900	290.40
11	1000	290.42
12	1100	293.42
13	1200	299.01
14	1300	297.78
15	1400	295.70
16	1500	299.47
17	1600	298.10
18	1700	290.69
19	1800	291.41
20	1900	331.92
21	2000	330.37
22	2100	307.03
23	2200	318.77
24	2300	300.26
25	2400	296.40
26	2500	290.02
27	2600	284.03
28	2700	281.70
29	2800	283.10
30	2900	281.63
31	3000	283.26
32	3100	284.17
33	3200	285.91
34	3300	282.73
35	3400	283.78
36	3500	295.38
37	3600	304.85
38	3700	294.67
39	3800	289.08
40	3900	326.37
41	4000	302.92
42	4100	288.83
43	4200	291.20
44	4300	286.69
45	4400	299.27
46	4500	301.20
47	4600	302.73
48	4700	290.17
49	4800	286.80
50	4900	290.20

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 Singapore (1.28967, 103.85007). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	15,998.2 km
Vacuum RTT floor	106.73 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	156.67 ms
Low-latency fiber material floor	156.04 ms
Engineering floor (5% path allowance)	164.52 ms
Research 1.33× mapped-fiber reference	208.37 ms
Estimated unamplified path loss	3359.6 dB
Transparent optical spans / inline amplifiers	210 / 209
Published RTT inflation over fiber floor	1.88×

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	281.63 ms
Average RTT	295.1 ms
Maximum RTT	331.92 ms
Standard deviation	12.04 ms
Stdev / average	4.1%

RTT trend

Estimated route stability across the selected time window.

Average: 294.9 ms
Minimum: 292.4 ms
Maximum: 297.9 ms
Average loss: 0.01%

Route Context

Departure PoP: São Paulo (GRU)
Destination PoP: Singapore (SIN)
Region overview: South America → Asia Pacific
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Singapore to São Paulo latency and RTT — 313.5 ms

Fastest routes departing São Paulo (GRU)

São Paulo to Miami latency and RTT — 74 ms
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 — 156 ms

Fastest routes arriving at Singapore (SIN)

Hong Kong to Singapore latency and RTT — 31.2 ms
Taipei to Singapore latency and RTT — 44.2 ms
Tokyo to Singapore latency and RTT — 69.6 ms
Melbourne to Singapore latency and RTT — 88.3 ms
Sydney to Singapore latency and RTT — 94.7 ms

Same corridor (South America → Asia Pacific)

São Paulo to Tokyo latency and RTT — 229.6 ms
São Paulo to Taipei latency and RTT — 259.1 ms
São Paulo to Sydney latency and RTT — 266.8 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-sin.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 → Singapore 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.

São Paulo, Brazil → Singapore RTT