Singapore to Hong Kong Latency, Ping & RTT | AS203314
Singapore to Hong Kong ping and RTT: 31.7 ms, 0.32 ms jitter, 25.24 ms fiber floor, and 79.6% efficiency across AS203314. Updated 2026-07-19.
🇸🇬 This page compares the published ping and round-trip time (RTT) from Singapore (SIN) to 🇭🇰 Hong Kong (HKG) with vacuum and optical-fiber physical limits.
Latency Summary
| Metric | Value |
|---|---|
| RTT | 31.7 ms |
| Jitter | 0.32 ms |
| Packet Loss | 0% |
| Standard Fiber Floor | 25.24 ms |
| Fiber Efficiency | 79.6% |
| Latency Tier | Excellent |
| Source Region | Asia Pacific |
| Destination Region | Asia Pacific |
Theoretical Fiber Latency
The public physical reference uses the GeoNames city centres for Singapore (1.28967, 103.85007) and Hong Kong (22.27832, 114.17469). It does not disclose either facility address.
| Physical Reference | Value |
|---|---|
| WGS-84 geodesic distance | 2,577.2 km |
| Vacuum RTT floor | 17.19 ms |
| Standard fiber RTT floor () | 25.24 ms |
| Low-latency fiber material floor | 25.14 ms |
| Engineering floor (5% path allowance) | 26.5 ms |
| Research 1.33× mapped-fiber reference | 33.57 ms |
| Estimated unamplified path loss | 541.2 dB |
| Transparent optical spans / inline amplifiers | 34 / 33 |
| 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.
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 | 31.4 ms |
| Median RTT (p50) | 31.7 ms |
| 95th percentile RTT (p95) | 32.2 ms |
| Maximum RTT | 32.5 ms |
| Jitter | 0.32 ms |
| Packet loss | 0% |
RTT trend
Estimated route stability across the selected time window.
- Average
- 31.7 ms
- Minimum
- 31.3 ms
- Maximum
- 32.0 ms
- Average loss
- 0.02%
Route Context
- Departure PoP: Singapore (SIN)
- Destination PoP: Hong Kong (HKG)
- Region overview: Asia Pacific → Asia Pacific
- Full global matrix: Backbone Latency Matrix
- Physical methodology: Theoretical Fiber Latency
Related City-Pair Routes
- Reverse direction: Hong Kong to Singapore latency and RTT — 30.9 ms
- Singapore to Taipei latency and RTT — 44.5 ms
- Singapore to Tokyo latency and RTT — 69 ms
- Singapore to Melbourne latency and RTT — 89.4 ms
- Singapore to Sydney latency and RTT — 94.7 ms
- Singapore to Marseille latency and RTT — 137.9 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.