# New York, USA → São Paulo, Brazil RTT

🇺🇸 **New York, USA (NYC)** → 🇧🇷 **São Paulo, Brazil (GRU)**

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

For the 2026-08-16T04:07:28Z round, 50 ICMP echo samples from New York to São Paulo averaged 106.9 ms, with a minimum of 104.25 ms and a maximum of 117.31 ms. Zero packet loss and 1.84 ms jitter accompany that average.

At a great-circle distance of 7,657.6 km, the vacuum round-trip floor is 51.09 ms and the fiber floor is 74.99 ms. The measured average is 1.43 times the fiber floor, putting the route's fiber efficiency at 70.1 percent.

Within the measured set of 19 routes from New York, this pairing ranked 11th. Its standard-deviation-to-average ratio is about 2.1 percent, well below the 3.28 percent network median, so individual samples tend to stay close to the 106.9 ms average.

## Latency Summary

| Metric               | Value                                                        |
| -------------------- | ------------------------------------------------------------ |
| RTT                  | **106.9 ms**                                                 |
| Jitter               | **1.84 ms**                                                  |
| Packet Loss          | **0%**                                                       |
| Standard Fiber Floor | **74.99 ms**                                                 |
| Fiber Efficiency     | **70.1%**                                                    |
| Latency Tier         | Good                                                         |
| Source Region        | [North America](/docs/network/latency/regions/north-america) |
| Destination Region   | [South America](/docs/network/latency/regions/south-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.

## 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 [New York City](https://www.geonames.org/5128581) (40.71427, -74.00597) and [São Paulo](https://www.geonames.org/3448439) (-23.54750, -46.63611). It does not disclose either facility address.

| Physical Reference                            | Value          |
| --------------------------------------------- | -------------- |
| WGS-84 geodesic distance                      | **7,657.6 km** |
| Vacuum RTT floor                              | **51.09 ms**   |
| Standard fiber RTT floor ($n_g=1.4679$)       | **74.99 ms**   |
| Low-latency fiber material floor              | **74.69 ms**   |
| Engineering floor (5% path allowance)         | **78.75 ms**   |
| Research 1.33× mapped-fiber reference         | **99.74 ms**   |
| Estimated unamplified path loss               | **1608.1 dB**  |
| Transparent optical spans / inline amplifiers | **101 / 100**  |
| Published RTT inflation over fiber floor      | **1.43×**      |

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        | **104.25 ms** |
| Average RTT        | **106.9 ms**  |
| Maximum RTT        | **117.31 ms** |
| Standard deviation | **2.21 ms**   |
| Stdev / average    | **2.1%**      |

## Route Context

* Departure PoP: [New York (NYC)](/docs/network/latency/nyc-new-york)
* Destination PoP: [São Paulo (GRU)](/docs/network/latency/gru-sao-paulo)
* Region overview: [North America](/docs/network/latency/regions/north-america) → [South America](/docs/network/latency/regions/south-america)
* Corridor overview: [North America to South America](/docs/network/latency/regions/north-america-to-south-america)
* 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**

* [São Paulo to New York latency and RTT](/docs/network/latency/pairs/gru-nyc-rtt) — 122 ms

**Fastest routes departing New York (NYC)**

* [New York to Ashburn latency and RTT](/docs/network/latency/pairs/nyc-iad-rtt) — 6 ms
* [New York to Miami latency and RTT](/docs/network/latency/pairs/nyc-mia-rtt) — 32.9 ms
* [New York to Seattle latency and RTT](/docs/network/latency/pairs/nyc-sea-rtt) — 58.7 ms
* [New York to Los Angeles latency and RTT](/docs/network/latency/pairs/nyc-lax-rtt) — 58.9 ms
* [New York to London latency and RTT](/docs/network/latency/pairs/nyc-lon-rtt) — 63.5 ms

**Fastest routes arriving at São Paulo (GRU)**

* [Ashburn to São Paulo latency and RTT](/docs/network/latency/pairs/iad-gru-rtt) — 101.4 ms
* [Miami to São Paulo latency and RTT](/docs/network/latency/pairs/mia-gru-rtt) — 128.7 ms
* [Los Angeles to São Paulo latency and RTT](/docs/network/latency/pairs/lax-gru-rtt) — 131.3 ms
* [Seattle to São Paulo latency and RTT](/docs/network/latency/pairs/sea-gru-rtt) — 155.7 ms
* [London to São Paulo latency and RTT](/docs/network/latency/pairs/lon-gru-rtt) — 170.7 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](/opendata/latency/). Per-pair files are available at `/opendata/latency/latest/pairs/nyc-gru.pings.{csv,json,yaml}`. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, New York → São Paulo 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/nyc-gru-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.