ICMP round-trip time from Ashburn, USA to Paris, France: 76.1 ms average over 50 samples, zero packet loss, with route efficiency context.

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

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

For the 2026-08-16T04:07:28Z run, ICMP probes from Ashburn to Paris averaged 76.1 ms across 50 samples, with a minimum of 74.36 ms and a maximum of 85 ms. No packets were lost, and the 1.76 ms standard deviation produced 1.12 ms of jitter, so the path was very stable throughout the measurement window.

The 6,202 km great-circle distance yields a 41.38 ms vacuum-latency floor and a 60.73 ms fiber floor. The measured 76.1 ms is 1.25 times the fiber floor, a 79.8% fiber efficiency that leaves relatively little excess delay over the ideal fiber path.

In this round, the route is ranked 7th by RTT among the 19 outbound paths measured from the same starting point, placing it in the upper half of that set. The median standard-deviation-to-average ratio for outbound paths from this starting point is 3.28%, and this route's spread of 1.76 ms around 76.1 ms is even tighter, so the route should deliver dependable network-layer RTT for Paris-bound traffic; ICMP RTT alone does not measure application experience.

Latency Summary

Metric	Value
RTT	76.1 ms
Jitter	1.12 ms
Packet Loss	0%
Standard Fiber Floor	60.73 ms
Fiber Efficiency	79.8%
Latency Tier	Excellent
Source Region	North America
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: IAD → PAR

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 76.1 ± 0.25 ms (SE)

Sample distribution: box = interquartile range (75.1–76.4 ms), median 75.6 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	85.00
2	100	78.51
3	200	80.48
4	300	77.24
5	400	75.41
6	500	74.80
7	600	74.42
8	700	74.59
9	800	76.82
10	900	75.39
11	1000	76.48
12	1100	77.45
13	1200	76.74
14	1300	75.65
15	1400	75.04
16	1500	79.55
17	1600	76.30
18	1700	76.05
19	1800	77.10
20	1900	75.28
21	2000	74.95
22	2100	75.92
23	2200	75.23
24	2300	76.32
25	2400	75.33
26	2500	75.46
27	2600	76.44
28	2700	75.49
29	2800	76.34
30	2900	77.37
31	3000	76.45
32	3100	75.35
33	3200	74.93
34	3300	75.29
35	3400	76.04
36	3500	74.84
37	3600	74.68
38	3700	74.77
39	3800	76.37
40	3900	75.28
41	4000	75.88
42	4100	75.47
43	4200	76.16
44	4300	76.43
45	4400	75.28
46	4500	74.59
47	4600	74.36
48	4700	74.79
49	4800	74.86
50	4900	76.03

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 Ashburn (39.04372, -77.48749) and Paris (48.85341, 2.34880). 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 (2026-08-16T04:07:28Z) collected 50 ICMP echo samples on this route. Distribution statistics from that round:

Round Statistic	Value
Minimum RTT	74.36 ms
Average RTT	76.1 ms
Maximum RTT	85 ms
Standard deviation	1.76 ms
Stdev / average	2.3%

RTT trend

Estimated route stability across the selected time window.

Average: 76.1 ms
Minimum: 75.4 ms
Maximum: 77.0 ms
Average loss: 0.02%

Route Context

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

Reverse direction

Paris to Ashburn latency and RTT — 75.5 ms

Fastest routes departing Ashburn (IAD)

Ashburn to New York latency and RTT — 6 ms
Ashburn to Miami latency and RTT — 27.4 ms
Ashburn to Los Angeles latency and RTT — 60.7 ms
Ashburn to Seattle latency and RTT — 62.3 ms
Ashburn to London latency and RTT — 70.3 ms

Fastest routes arriving at Paris (PAR)

London to Paris latency and RTT — 6.4 ms
Amsterdam to Paris latency and RTT — 7 ms
Frankfurt to Paris latency and RTT — 7.6 ms
Marseille to Paris latency and RTT — 8.9 ms
Berlin to Paris latency and RTT — 15.6 ms

Same corridor (North America → Europe)

New York to London latency and RTT — 63.5 ms
New York to Amsterdam latency and RTT — 68.7 ms
New York to Paris latency and RTT — 68.9 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/iad-par.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Ashburn → Paris 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.

Ashburn, USA → Paris, France RTT