Explore Frankfurt, Germany to Berlin, Germany ICMP RTT, jitter, packet loss and fiber latency limits on the AS203314 network.

🇩🇪 Frankfurt, Germany (FRA) → 🇩🇪 Berlin, Germany (BER)

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

Frankfurt to Berlin averaged 6.1 ms across 50 replies. The observed range was 5.91 to 6.79 ms; these figures describe one probe round, not a long-term service target.

This is number 2 of 19 outgoing routes by average RTT. That ranking compares different destinations and is not adjusted for distance.

Latency Summary

Metric	Value
RTT	6.1 ms
Jitter	0.16 ms
Packet Loss	0%
Standard Fiber Floor	4.16 ms
Fiber Efficiency	68.2%
Latency Tier	Ultra-Low
Source Region	Europe
Destination Region	Europe

Ping Measurement Series

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

Ping series: FRA → BER

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 6.1 ± 0.03 ms (SE)

Sample distribution: box = interquartile range (6.0–6.2 ms), median 6.0 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 (4.2 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	6.00
2	100	6.22
3	200	5.98
4	300	5.96
5	400	5.94
6	500	5.97
7	600	5.91
8	700	6.02
9	800	5.93
10	900	5.99
11	1000	6.79
12	1100	6.24
13	1200	5.99
14	1300	5.99
15	1400	6.14
16	1500	5.98
17	1600	6.02
18	1700	6.58
19	1800	6.11
20	1900	6.25
21	2000	6.04
22	2100	6.01
23	2200	5.95
24	2300	5.93
25	2400	6.06
26	2500	6.29
27	2600	6.17
28	2700	6.05
29	2800	5.94
30	2900	6.65
31	3000	6.16
32	3100	6.27
33	3200	6.16
34	3300	6.16
35	3400	5.98
36	3500	6.04
37	3600	6.04
38	3700	5.97
39	3800	6.16
40	3900	6.04
41	4000	5.92
42	4100	6.02
43	4200	6.16
44	4300	6.31
45	4400	6.18
46	4500	6.14
47	4600	6.04
48	4700	5.99
49	4800	6.04
50	4900	6.12

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: Frankfurt am Main (50.11552, 8.68417) and Berlin (52.52437, 13.41053). These are not facility coordinates or a surveyed cable path.

Physical Reference	Value
WGS-84 geodesic distance	424.6 km
Vacuum RTT floor	2.83 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	4.16 ms
Low-latency fiber material floor	4.14 ms
Engineering floor (5% path allowance)	4.37 ms
Research 1.33× mapped-fiber reference	5.53 ms
Estimated unamplified path loss	89.2 dB
Transparent optical spans / inline amplifiers	6 / 5
Published RTT inflation over fiber floor	1.47×

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	5.91 ms
Average RTT	6.1 ms
Maximum RTT	6.79 ms
Standard deviation	0.18 ms
Stdev / average	3.0%

Estimated RTT trend

Modeled comparison, not historical probe measurements.

Average: 6.1 ms
Minimum: 6.0 ms
Maximum: 6.1 ms
Average loss: 0.01%

Route Context

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

Reverse direction

Berlin to Frankfurt latency and RTT: 6.1 ms

Fastest routes departing Frankfurt (FRA)

Frankfurt to Amsterdam latency and RTT: 5.9 ms
Frankfurt to Paris latency and RTT: 7.6 ms
Frankfurt to London latency and RTT: 12.9 ms
Frankfurt to Marseille latency and RTT: 16.4 ms
Frankfurt to Moscow latency and RTT: 34.7 ms

Fastest routes arriving at Berlin (BER)

Amsterdam to Berlin latency and RTT: 7.2 ms
Paris to Berlin latency and RTT: 15.5 ms
London to Berlin latency and RTT: 16.2 ms
Marseille to Berlin latency and RTT: 20.6 ms
Moscow to Berlin latency and RTT: 27.5 ms

Same corridor (Europe → Europe)

Amsterdam to London latency and RTT: 5.2 ms
London to Amsterdam latency and RTT: 5.2 ms
Amsterdam to Frankfurt latency and RTT: 5.9 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/fra-ber.pings.{csv,json,yaml}. Cite the route, round timestamp and dataset version. Example: "Hats Network latency dataset, Frankfurt → Berlin 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.

Frankfurt, Germany → Berlin, Germany RTT