ICMP RTT measurement page for Paris, France to Ashburn, USA: average latency, jitter, loss, and route efficiency metrics from 50 samples.

🇫🇷 Paris, France (PAR) → 🇺🇸 Ashburn, USA (IAD)

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

For the 2026-08-15T04:03:13Z measurement round, Paris-to-Ashburn ICMP echo RTT averaged 75.7 ms over 50 samples, with a 72.22 ms minimum and an 83.83 ms maximum. Zero packet loss and a standard deviation of 2.95 ms point to a consistently stable transatlantic route.

The observed average is 1.25 times the 60.73 ms fiber-floor estimate for the 6,202 km great-circle distance, which translates to an 80.2% fiber efficiency. This route ranks 8th among the 19 Paris-origin routes in the same round, and its relatively low speed-of-light overhead makes it one of the more efficient North American destinations.

With 2.95 ms of standard deviation, variability is roughly 3.9% of the average RTT, slightly above the 3.08% median for the Paris-origin route set. Jitter of 2.38 ms and complete packet delivery over 50 samples reinforce the Excellent latency tier and support use as a stable reference for transatlantic traffic planning.

Latency Summary

Metric	Value
RTT	75.7 ms
Jitter	2.38 ms
Packet Loss	0%
Standard Fiber Floor	60.73 ms
Fiber Efficiency	80.2%
Latency Tier	Excellent
Source Region	Europe
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: PAR → IAD

50 ICMP echo samples at 100 ms intervals · round 2026-08-15T04:03:13Z · avg 75.7 ± 0.42 ms (SE)

Sample distribution: box = interquartile range (73.3–77.2 ms), median 74.9 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 (60.7 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	78.86
2	100	74.12
3	200	74.47
4	300	72.75
5	400	72.76
6	500	78.71
7	600	74.99
8	700	74.48
9	800	73.40
10	900	73.09
11	1000	72.22
12	1100	73.40
13	1200	73.53
14	1300	83.83
15	1400	78.71
16	1500	75.35
17	1600	76.49
18	1700	73.25
19	1800	72.60
20	1900	76.87
21	2000	73.84
22	2100	73.28
23	2200	72.29
24	2300	74.86
25	2400	72.97
26	2500	72.31
27	2600	77.83
28	2700	79.19
29	2800	77.66
30	2900	75.88
31	3000	83.24
32	3100	75.78
33	3200	76.56
34	3300	75.02
35	3400	73.19
36	3500	72.65
37	3600	73.76
38	3700	75.80
39	3800	77.01
40	3900	76.82
41	4000	76.98
42	4100	79.95
43	4200	83.56
44	4300	77.31
45	4400	73.52
46	4500	73.24
47	4600	74.28
48	4700	74.15
49	4800	78.18
50	4900	80.01

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 Paris (48.85341, 2.34880) and Ashburn (39.04372, -77.48749). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	6,202 km
Vacuum RTT floor	41.38 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	60.73 ms
Low-latency fiber material floor	60.49 ms
Engineering floor (5% path allowance)	63.78 ms
Research 1.33× mapped-fiber reference	80.78 ms
Estimated unamplified path loss	1302.4 dB
Transparent optical spans / inline amplifiers	82 / 81
Published RTT inflation over fiber floor	1.25×

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	72.22 ms
Average RTT	75.7 ms
Maximum RTT	83.83 ms
Standard deviation	2.95 ms
Stdev / average	3.9%

RTT trend

Estimated route stability across the selected time window.

Average: 75.7 ms
Minimum: 75.0 ms
Maximum: 76.5 ms
Average loss: 0.02%

Route Context

Departure PoP: Paris (PAR)
Destination PoP: Ashburn (IAD)
Region overview: Europe → North America
Corridor overview: Europe to North America
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Ashburn to Paris latency and RTT — 75.7 ms

Fastest routes departing Paris (PAR)

Paris to Amsterdam latency and RTT — 7 ms
Paris to London latency and RTT — 7.1 ms
Paris to Frankfurt latency and RTT — 7.6 ms
Paris to Marseille latency and RTT — 8.9 ms
Paris to Berlin latency and RTT — 14.8 ms

Fastest routes arriving at Ashburn (IAD)

New York to Ashburn latency and RTT — 6 ms
Miami to Ashburn latency and RTT — 27.3 ms
Los Angeles to Ashburn latency and RTT — 59.9 ms
Seattle to Ashburn latency and RTT — 62 ms
London to Ashburn latency and RTT — 71.3 ms

Same corridor (Europe → North America)

London to New York latency and RTT — 63.5 ms
Amsterdam to New York latency and RTT — 68.2 ms
Paris to New York latency and RTT — 68.6 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/par-iad.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Paris → Ashburn 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.

Paris, France → Ashburn, USA RTT