Paris to Sydney Latency, Ping & RTT | AS203314
Paris to Sydney ping and RTT: 238.7 ms, 1.53 ms jitter, 166.06 ms fiber floor, and 69.6% efficiency across AS203314. Updated 2026-07-19.
🇫🇷 This page compares the published ping and round-trip time (RTT) from Paris (PAR) to 🇦🇺 Sydney (SYD) with vacuum and optical-fiber physical limits.
Latency Summary
| Metric | Value |
|---|---|
| RTT | 238.7 ms |
| Jitter | 1.53 ms |
| Packet Loss | 0% |
| Standard Fiber Floor | 166.06 ms |
| Fiber Efficiency | 69.6% |
| Latency Tier | Fair |
| Source Region | Europe |
| Destination Region | Asia Pacific |
Theoretical Fiber Latency
The public physical reference uses the GeoNames city centres for Paris (48.85341, 2.34880) and Sydney (-33.86785, 151.20732). It does not disclose either facility address.
| Physical Reference | Value |
|---|---|
| WGS-84 geodesic distance | 16,957.7 km |
| Vacuum RTT floor | 113.13 ms |
| Standard fiber RTT floor () | 166.06 ms |
| Low-latency fiber material floor | 165.4 ms |
| Engineering floor (5% path allowance) | 174.39 ms |
| Research 1.33× mapped-fiber reference | 220.86 ms |
| Estimated unamplified path loss | 3561.1 dB |
| Transparent optical spans / inline amplifiers | 223 / 222 |
| Published RTT inflation over fiber floor | 1.44× |
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 | 236.6 ms |
| Median RTT (p50) | 238.5 ms |
| 95th percentile RTT (p95) | 240.8 ms |
| Maximum RTT | 242 ms |
| Jitter | 1.53 ms |
| Packet loss | 0% |
RTT trend
Estimated route stability across the selected time window.
- Average
- 238.7 ms
- Minimum
- 236.6 ms
- Maximum
- 240.6 ms
- Average loss
- 0.01%
Route Context
- Departure PoP: Paris (PAR)
- Destination PoP: Sydney (SYD)
- Region overview: Europe → Asia Pacific
- Full global matrix: Backbone Latency Matrix
- Physical methodology: Theoretical Fiber Latency
Related City-Pair Routes
- Reverse direction: Sydney to Paris latency and RTT — 239.8 ms
- Paris to London latency and RTT — 6.3 ms
- Paris to Amsterdam latency and RTT — 7 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 — 15.4 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.