# Ashburn, USA → Frankfurt, Germany RTT

🇺🇸 **Ashburn, USA (IAD)** → 🇩🇪 **Frankfurt, Germany (FRA)**

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

During measurement round 2026-08-16T04:07:28Z, 50 ICMP echo probes from Ashburn, USA to Frankfurt, Germany returned an average round-trip time of 81.2 ms, with a minimum of 79.1 ms, a maximum of 86.57 ms, and no packet loss.

The route's 6,566 km geodesic span has a theoretical vacuum floor of 43.8 ms and a fiber floor of 64.3 ms; the observed 81.2 ms average is 1.26 times the fiber floor, corresponding to 79.2% fiber efficiency. This suggests a path that stays reasonably close to a great-circle fiber trajectory despite connecting two major hubs.

This route ranked eighth of the 19 outbound routes measured from Ashburn in the same round. Its standard deviation of 1.81 ms is 2.2% of the average, below the 3.28% median fluctuation ratio across the peer set, so the route paired a mid-pack ranking with notably stable timing.

## Latency Summary

| Metric               | Value                                                        |
| -------------------- | ------------------------------------------------------------ |
| RTT                  | **81.2 ms**                                                  |
| Jitter               | **1.11 ms**                                                  |
| Packet Loss          | **0%**                                                       |
| Standard Fiber Floor | **64.3 ms**                                                  |
| Fiber Efficiency     | **79.2%**                                                    |
| Latency Tier         | Good                                                         |
| Source Region        | [North America](/docs/network/latency/regions/north-america) |
| Destination Region   | [Europe](/docs/network/latency/regions/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.

## 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](#about-this-measurement) for citation guidance.

## Theoretical Fiber Latency

The public physical reference uses the GeoNames city centres for [Ashburn](https://www.geonames.org/4744870) (39.04372, -77.48749) and [Frankfurt am Main](https://www.geonames.org/2925533) (50.11552, 8.68417). It does not disclose either facility address.

| Physical Reference                            | Value         |
| --------------------------------------------- | ------------- |
| WGS-84 geodesic distance                      | **6,566 km**  |
| Vacuum RTT floor                              | **43.8 ms**   |
| Standard fiber RTT floor ($n_g=1.4679$)       | **64.3 ms**   |
| Low-latency fiber material floor              | **64.04 ms**  |
| Engineering floor (5% path allowance)         | **67.52 ms**  |
| Research 1.33× mapped-fiber reference         | **85.52 ms**  |
| Estimated unamplified path loss               | **1378.9 dB** |
| Transparent optical spans / inline amplifiers | **87 / 86**   |
| Published RTT inflation over fiber floor      | **1.26×**     |

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](/docs/network/latency/theoretical-fiber-latency).

## 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        | **79.1 ms**  |
| Average RTT        | **81.2 ms**  |
| Maximum RTT        | **86.57 ms** |
| Standard deviation | **1.81 ms**  |
| Stdev / average    | **2.2%**     |

## Route Context

* Departure PoP: [Ashburn (IAD)](/docs/network/latency/iad-ashburn)
* Destination PoP: [Frankfurt (FRA)](/docs/network/latency/fra-frankfurt)
* Region overview: [North America](/docs/network/latency/regions/north-america) → [Europe](/docs/network/latency/regions/europe)
* Full global matrix: [Backbone Latency Matrix](/docs/network/latency)
* Physical methodology: [Theoretical Fiber Latency](/docs/network/latency/theoretical-fiber-latency)

## Related City-Pair Routes

**Reverse direction**

* [Frankfurt to Ashburn latency and RTT](/docs/network/latency/pairs/fra-iad-rtt) — 80.7 ms

**Fastest routes departing Ashburn (IAD)**

* [Ashburn to New York latency and RTT](/docs/network/latency/pairs/iad-nyc-rtt) — 6 ms
* [Ashburn to Miami latency and RTT](/docs/network/latency/pairs/iad-mia-rtt) — 27.4 ms
* [Ashburn to Los Angeles latency and RTT](/docs/network/latency/pairs/iad-lax-rtt) — 60.7 ms
* [Ashburn to Seattle latency and RTT](/docs/network/latency/pairs/iad-sea-rtt) — 62.3 ms
* [Ashburn to London latency and RTT](/docs/network/latency/pairs/iad-lon-rtt) — 70.3 ms

**Fastest routes arriving at Frankfurt (FRA)**

* [Amsterdam to Frankfurt latency and RTT](/docs/network/latency/pairs/ams-fra-rtt) — 5.9 ms
* [Berlin to Frankfurt latency and RTT](/docs/network/latency/pairs/ber-fra-rtt) — 6.1 ms
* [Paris to Frankfurt latency and RTT](/docs/network/latency/pairs/par-fra-rtt) — 7.6 ms
* [London to Frankfurt latency and RTT](/docs/network/latency/pairs/lon-fra-rtt) — 13.6 ms
* [Marseille to Frankfurt latency and RTT](/docs/network/latency/pairs/mrs-fra-rtt) — 16 ms

**Same corridor (North America → Europe)**

* [New York to London latency and RTT](/docs/network/latency/pairs/nyc-lon-rtt) — 63.5 ms
* [New York to Amsterdam latency and RTT](/docs/network/latency/pairs/nyc-ams-rtt) — 68.7 ms
* [New York to Paris latency and RTT](/docs/network/latency/pairs/nyc-par-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](/opendata/latency/). Per-pair files are available at `/opendata/latency/latest/pairs/iad-fra.pings.{csv,json,yaml}`. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Ashburn → Frankfurt round 2026-08-16T04:07:28Z, CC BY 4.0".

***

*Data auto-generated on August 16, 2026. Explore the [full interactive latency matrix](/docs/network/latency) or browse more [city-pair routes](/docs/network/latency/pairs).*

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## License and attribution

- **Canonical source:** [View the human-readable HTML page](https://hatsnet.io/docs/network/latency/pairs/iad-fra-rtt).
- **Original documentation:** © Hats Network Inc., licensed under [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/).
- **Public latency data:** © Hats Network Inc., licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).
- **Full terms:** [Content and Data License](https://hatsnet.io/docs/legal/content-and-data-license) — includes attribution requirements, third-party material, trademarks, source code and other exclusions.