About the internet speed data for Japan
These figures are aggregated from real, in-browser speed tests run by speedor.net visitors in Japan, measured against our global network of test servers. The average download is 282.5 Mbps and upload 291.4 Mbps. Figures update as more people test; this is early-stage data (3317 samples since 2026-10-12) and becomes more precise over time.
How to test your internet speed in Japan
Open the free speed test, press start, and it measures your real download, upload, ping and jitter against the nearest server — no app or sign-up needed. Your result is added to the Japan average.
FAQ
What is the average internet speed in Japan?
About 282.5 Mbps download and 291.4 Mbps upload, based on 3317 tests run on speedor.net.
How is this data measured?
Each figure is the average of in-browser speed tests run by real visitors, measured against the nearest speedor.net server. We store anonymized, aggregated results only.