Sydney to New York Latency, Ping & RTT | AS203314
Sydney to New York ping and RTT: 193.8 ms, 1.71 ms jitter, 156.57 ms fiber floor, and 80.8% efficiency across AS203314. Updated 2026-07-19.
🇦🇺 This page compares the published ping and round-trip time (RTT) from Sydney (SYD) to 🇺🇸 New York (NYC) with vacuum and optical-fiber physical limits.
Latency Summary
| Metric | Value |
|---|---|
| RTT | 193.8 ms |
| Jitter | 1.71 ms |
| Packet Loss | 0% |
| Standard Fiber Floor | 156.57 ms |
| Fiber Efficiency | 80.8% |
| Latency Tier | Fair |
| Source Region | Asia Pacific |
| Destination Region | North America |
Theoretical Fiber Latency
The public physical reference uses the GeoNames city centres for Sydney (-33.86785, 151.20732) and New York City (40.71427, -74.00597). It does not disclose either facility address.
| Physical Reference | Value |
|---|---|
| WGS-84 geodesic distance | 15,988.1 km |
| Vacuum RTT floor | 106.66 ms |
| Standard fiber RTT floor () | 156.57 ms |
| Low-latency fiber material floor | 155.94 ms |
| Engineering floor (5% path allowance) | 164.42 ms |
| Research 1.33× mapped-fiber reference | 208.24 ms |
| Estimated unamplified path loss | 3357.5 dB |
| Transparent optical spans / inline amplifiers | 210 / 209 |
| Published RTT inflation over fiber floor | 1.24× |
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 | 192 ms |
| Median RTT (p50) | 193.5 ms |
| 95th percentile RTT (p95) | 196.7 ms |
| Maximum RTT | 197.4 ms |
| Jitter | 1.71 ms |
| Packet loss | 0% |
RTT trend
Estimated route stability across the selected time window.
- Average
- 193.9 ms
- Minimum
- 192.3 ms
- Maximum
- 196.0 ms
- Average loss
- 0.02%
Route Context
- Departure PoP: Sydney (SYD)
- Destination PoP: New York (NYC)
- Region overview: Asia Pacific → North America
- Full global matrix: Backbone Latency Matrix
- Physical methodology: Theoretical Fiber Latency
Related City-Pair Routes
- Reverse direction: New York to Sydney latency and RTT — 192.2 ms
- Sydney to Melbourne latency and RTT — 9.8 ms
- Sydney to Singapore latency and RTT — 94.7 ms
- Sydney to Tokyo latency and RTT — 101.8 ms
- Sydney to Hong Kong latency and RTT — 124.7 ms
- Sydney to Taipei latency and RTT — 133.7 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.