Measured ICMP RTT from Johannesburg, South Africa to Frankfurt, Germany: average, jitter, packet loss and rank from the 2026-08-16 round.

🇿🇦 Johannesburg, South Africa (JNB) → 🇩🇪 Frankfurt, Germany (FRA)

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

In the 2026-08-16T04:07:28Z measurement round, ICMP echo requests from Johannesburg to Frankfurt averaged 166 ms, with a minimum of 156.26 ms, a maximum of 186.26 ms and zero packet loss across all 50 samples.

The standard deviation was 7.97 ms and jitter was 7.73 ms, so the route showed a fairly consistent profile despite a roughly 30 ms range between its fastest and slowest replies. That standard deviation is about 4.8% of the average, above the 3.28% median stdev-to-average ratio seen across the 19 outbound routes in the same measurement set.

This route ranked 4th among those 19 routes. Its 166 ms average is 1.96 times the theoretical fiber-floor minimum for the 8,666.9 km great-circle distance, placing fiber efficiency at 51.1%; in practical terms, the path remains well above the optical floor, but the zero-loss sample and modest jitter make the route a stable reference for Johannesburg-to-Frankfurt connectivity.

Latency Summary

Metric	Value
RTT	166 ms
Jitter	7.73 ms
Packet Loss	0%
Standard Fiber Floor	84.87 ms
Fiber Efficiency	51.1%
Latency Tier	Fair
Source Region	Africa
Destination Region	Europe

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: JNB → FRA

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 166.0 ± 1.13 ms (SE)

Sample distribution: box = interquartile range (159.4–169.6 ms), median 164.8 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 (84.9 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	159.20
2	100	159.01
3	200	156.70
4	300	164.13
5	400	176.66
6	500	162.78
7	600	184.47
8	700	166.95
9	800	159.57
10	900	180.33
11	1000	177.95
12	1100	165.39
13	1200	159.44
14	1300	157.41
15	1400	161.33
16	1500	162.50
17	1600	177.22
18	1700	163.88
19	1800	161.49
20	1900	170.14
21	2000	166.73
22	2100	164.76
23	2200	158.50
24	2300	156.31
25	2400	158.58
26	2500	157.54
27	2600	156.66
28	2700	156.26
29	2800	177.26
30	2900	168.17
31	3000	164.84
32	3100	158.63
33	3200	163.57
34	3300	186.26
35	3400	168.10
36	3500	170.69
37	3600	180.36
38	3700	166.25
39	3800	179.95
40	3900	172.63
41	4000	166.87
42	4100	175.97
43	4200	164.80
44	4300	160.23
45	4400	165.02
46	4500	165.86
47	4600	159.46
48	4700	157.41
49	4800	165.08
50	4900	160.70

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 Johannesburg (-26.20227, 28.04363) and Frankfurt am Main (50.11552, 8.68417). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	8,666.9 km
Vacuum RTT floor	57.82 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	84.87 ms
Low-latency fiber material floor	84.53 ms
Engineering floor (5% path allowance)	89.13 ms
Research 1.33× mapped-fiber reference	112.88 ms
Estimated unamplified path loss	1820.1 dB
Transparent optical spans / inline amplifiers	114 / 113
Published RTT inflation over fiber floor	1.96×

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	156.26 ms
Average RTT	166 ms
Maximum RTT	186.26 ms
Standard deviation	7.97 ms
Stdev / average	4.8%

RTT trend

Estimated route stability across the selected time window.

Average: 166.0 ms
Minimum: 164.3 ms
Maximum: 167.5 ms
Average loss: 0.03%

Route Context

Departure PoP: Johannesburg (JNB)
Destination PoP: Frankfurt (FRA)
Region overview: Africa → Europe
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Frankfurt to Johannesburg latency and RTT — 188.4 ms

Fastest routes departing Johannesburg (JNB)

Johannesburg to London latency and RTT — 158 ms
Johannesburg to Amsterdam latency and RTT — 163.2 ms
Johannesburg to Paris latency and RTT — 164.4 ms
Johannesburg to Marseille latency and RTT — 172 ms
Johannesburg to Berlin latency and RTT — 172.1 ms

Fastest routes arriving at Frankfurt (FRA)

Amsterdam to Frankfurt latency and RTT — 5.9 ms
Berlin to Frankfurt latency and RTT — 6.1 ms
Paris to Frankfurt latency and RTT — 7.6 ms
London to Frankfurt latency and RTT — 13.6 ms
Marseille to Frankfurt latency and RTT — 16 ms

Same corridor (Africa → Europe)

Johannesburg to Moscow latency and RTT — 200.7 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/jnb-fra.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Johannesburg → Frankfurt 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.

Johannesburg, South Africa → Frankfurt, Germany RTT