Seattle to Berlin Latency, Ping & RTT | AS203314
Seattle to Berlin ping and RTT: 138.4 ms, 1.53 ms jitter, 79.73 ms fiber floor, and 57.6% efficiency across AS203314. Updated 2026-07-19.
🇺🇸 This page compares the published ping and round-trip time (RTT) from Seattle (SEA) to 🇩🇪 Berlin (BER) with vacuum and optical-fiber physical limits.
Latency Summary
| Metric | Value |
|---|---|
| RTT | 138.4 ms |
| Jitter | 1.53 ms |
| Packet Loss | 0.12% |
| Standard Fiber Floor | 79.73 ms |
| Fiber Efficiency | 57.6% |
| Latency Tier | Good |
| Source Region | North America |
| Destination Region | Europe |
Theoretical Fiber Latency
The public physical reference uses the GeoNames city centres for Seattle (47.60621, -122.33207) and Berlin (52.52437, 13.41053). It does not disclose either facility address.
| Physical Reference | Value |
|---|---|
| WGS-84 geodesic distance | 8,142.2 km |
| Vacuum RTT floor | 54.32 ms |
| Standard fiber RTT floor () | 79.73 ms |
| Low-latency fiber material floor | 79.41 ms |
| Engineering floor (5% path allowance) | 83.73 ms |
| Research 1.33× mapped-fiber reference | 106.05 ms |
| Estimated unamplified path loss | 1709.9 dB |
| Transparent optical spans / inline amplifiers | 107 / 106 |
| Published RTT inflation over fiber floor | 1.74× |
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 following estimated indicators summarize route stability for the current publication period and are intended for comparative planning rather than SLA evaluation.
| Stability Indicator | Value |
|---|---|
| Minimum RTT | 136.7 ms |
| Median RTT (p50) | 138.1 ms |
| 95th percentile RTT (p95) | 140.3 ms |
| Maximum RTT | 141.5 ms |
| Jitter | 1.53 ms |
| Packet loss | 0.12% |
RTT trend
Estimated route stability across the selected time window.
- Average
- 138.6 ms
- Minimum
- 137.0 ms
- Maximum
- 139.8 ms
- Average loss
- 0.02%
Route Context
- Departure PoP: Seattle (SEA)
- Destination PoP: Berlin (BER)
- Region overview: North America → Europe
- Full global matrix: Backbone Latency Matrix
- Physical methodology: Theoretical Fiber Latency
Related City-Pair Routes
- Reverse direction: Berlin to Seattle latency and RTT — 138.7 ms
- Seattle to Los Angeles latency and RTT — 27.1 ms
- Seattle to New York latency and RTT — 59.1 ms
- Seattle to Ashburn latency and RTT — 61.8 ms
- Seattle to Miami latency and RTT — 81.1 ms
- Seattle to Tokyo latency and RTT — 84 ms
About This Measurement
Published RTT reflects best-case backbone path behavior. End-user latency also depends on local access networks, congestion, routing policy, and traffic engineering. Stability indicators are comparative estimates, and none of these values is an SLA.
Data auto-generated on July 19, 2026. Explore the full interactive latency matrix or browse more city-pair routes.