Los Angeles to Tokyo Latency, Ping & RTT | AS203314
Los Angeles to Tokyo ping and RTT: 100.7 ms, 1.02 ms jitter, 86.51 ms fiber floor, and 85.9% efficiency across AS203314. Updated 2026-07-19.
🇺🇸 This page compares the published ping and round-trip time (RTT) from Los Angeles (LAX) to 🇯🇵 Tokyo (TYO) with vacuum and optical-fiber physical limits.
Latency Summary
| Metric | Value |
|---|---|
| RTT | 100.7 ms |
| Jitter | 1.02 ms |
| Packet Loss | 0% |
| Standard Fiber Floor | 86.51 ms |
| Fiber Efficiency | 85.9% |
| Latency Tier | Good |
| Source Region | North America |
| Destination Region | Asia Pacific |
Theoretical Fiber Latency
The public physical reference uses the GeoNames city centres for Los Angeles (34.05223, -118.24368) and Tokyo (35.68950, 139.69171). It does not disclose either facility address.
| Physical Reference | Value |
|---|---|
| WGS-84 geodesic distance | 8,834.5 km |
| Vacuum RTT floor | 58.94 ms |
| Standard fiber RTT floor () | 86.51 ms |
| Low-latency fiber material floor | 86.17 ms |
| Engineering floor (5% path allowance) | 90.85 ms |
| Research 1.33× mapped-fiber reference | 115.06 ms |
| Estimated unamplified path loss | 1855.3 dB |
| Transparent optical spans / inline amplifiers | 116 / 115 |
| Published RTT inflation over fiber floor | 1.16× |
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 | 99.4 ms |
| Median RTT (p50) | 100.5 ms |
| 95th percentile RTT (p95) | 102.4 ms |
| Maximum RTT | 102.5 ms |
| Jitter | 1.02 ms |
| Packet loss | 0% |
RTT trend
Estimated route stability across the selected time window.
- Average
- 100.7 ms
- Minimum
- 99.7 ms
- Maximum
- 101.8 ms
- Average loss
- 0.02%
Route Context
- Departure PoP: Los Angeles (LAX)
- Destination PoP: Tokyo (TYO)
- Region overview: North America → Asia Pacific
- Full global matrix: Backbone Latency Matrix
- Physical methodology: Theoretical Fiber Latency
Related City-Pair Routes
- Reverse direction: Tokyo to Los Angeles latency and RTT — 101.3 ms
- Los Angeles to Seattle latency and RTT — 25.9 ms
- Los Angeles to Miami latency and RTT — 57.1 ms
- Los Angeles to New York latency and RTT — 58.5 ms
- Los Angeles to Ashburn latency and RTT — 59.7 ms
- Los Angeles to London latency and RTT — 129.1 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.