Tokyo to Singapore Latency, Ping & RTT | AS203314
Tokyo to Singapore ping and RTT: 68.8 ms, 0.77 ms jitter, 52 ms fiber floor, and 75.6% efficiency across AS203314. Updated 2026-07-19.
🇯🇵 This page compares the published ping and round-trip time (RTT) from Tokyo (TYO) to 🇸🇬 Singapore (SIN) with vacuum and optical-fiber physical limits.
Latency Summary
| Metric | Value |
|---|---|
| RTT | 68.8 ms |
| Jitter | 0.77 ms |
| Packet Loss | 0% |
| Standard Fiber Floor | 52 ms |
| Fiber Efficiency | 75.6% |
| Latency Tier | Excellent |
| Source Region | Asia Pacific |
| Destination Region | Asia Pacific |
Theoretical Fiber Latency
The public physical reference uses the GeoNames city centres for Tokyo (35.68950, 139.69171) and Singapore (1.28967, 103.85007). It does not disclose either facility address.
| Physical Reference | Value |
|---|---|
| WGS-84 geodesic distance | 5,310.2 km |
| Vacuum RTT floor | 35.43 ms |
| Standard fiber RTT floor () | 52 ms |
| Low-latency fiber material floor | 51.79 ms |
| Engineering floor (5% path allowance) | 54.61 ms |
| Research 1.33× mapped-fiber reference | 69.16 ms |
| Estimated unamplified path loss | 1115.1 dB |
| Transparent optical spans / inline amplifiers | 70 / 69 |
| Published RTT inflation over fiber floor | 1.32× |
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 | 67.8 ms |
| Median RTT (p50) | 68.7 ms |
| 95th percentile RTT (p95) | 69.8 ms |
| Maximum RTT | 70.6 ms |
| Jitter | 0.77 ms |
| Packet loss | 0% |
RTT trend
Estimated route stability across the selected time window.
- Average
- 68.8 ms
- Minimum
- 68.2 ms
- Maximum
- 69.5 ms
- Average loss
- 0.01%
Route Context
- Departure PoP: Tokyo (TYO)
- Destination PoP: Singapore (SIN)
- Region overview: Asia Pacific → Asia Pacific
- Full global matrix: Backbone Latency Matrix
- Physical methodology: Theoretical Fiber Latency
Related City-Pair Routes
- Reverse direction: Singapore to Tokyo latency and RTT — 69 ms
- Tokyo to Taipei latency and RTT — 32.7 ms
- Tokyo to Hong Kong latency and RTT — 45.2 ms
- Tokyo to Seattle latency and RTT — 84.1 ms
- Tokyo to Los Angeles latency and RTT — 101.3 ms
- Tokyo to Sydney latency and RTT — 101.9 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.