Convert Ri (Japanese Mile) to kilometres
East Asia · East Asian Length · historical · colonial
Historically reconstructed The unit is no longer in use and its value is reconstructed from historical and scholarly sources — treat it as indicative.
1 Ri (Japanese Mile) = 3.927 kilometres
kilometres = Ri (Japanese Mile) × 3.927
Convert any amount
Ri (Japanese Mile) to kilometres table
| Ri (Japanese Mile) | kilometres |
|---|---|
| 0.25 Ri (Japanese Mile) | 0.98175 kilometres |
| 0.5 Ri (Japanese Mile) | 1.9635 kilometres |
| 1 Ri (Japanese Mile) | 3.927 kilometres |
| 2 Ri (Japanese Mile) | 7.854 kilometres |
| 3 Ri (Japanese Mile) | 11.781 kilometres |
| 4 Ri (Japanese Mile) | 15.708 kilometres |
| 5 Ri (Japanese Mile) | 19.635 kilometres |
| 10 Ri (Japanese Mile) | 39.27 kilometres |
| 20 Ri (Japanese Mile) | 78.54 kilometres |
| 25 Ri (Japanese Mile) | 98.175 kilometres |
| 50 Ri (Japanese Mile) | 196.35 kilometres |
| 100 Ri (Japanese Mile) | 392.7 kilometres |
About the Ri (Japanese Mile)
Japanese mile ≈ 3.93 km.
- Symbol
- 里
- Value in SI
- 1 Ri (Japanese Mile) = 3,927 metre
- Typical use
- navigation
- Source
- UnitConvertLab measurement atlas
Every atlas conversion routes through the SI metre. See our methodology and data provenance pages for how these values are sourced and verified.
Related units and variant risk
Other east asian length units in the East Asia family, least settled first. If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.
- Chi (Chinese Foot) to kilometresVaries by locality
- Cun (Chinese Inch) to kilometresConventional value
- Zhang to kilometresConventional value
- Li (Chinese Mile) to kilometresConventional value
- Shaku (Japanese) to kilometresConventional value
- Sun (Japanese) to kilometresConventional value
- Ken (Japanese) to kilometresConventional value
Related conversions
Frequently asked
How many kilometres are in a Ri (Japanese Mile)?
1 Ri (Japanese Mile) = 3.927 kilometres. Multiply the number of Ri (Japanese Mile) by 3.927 to get kilometres.
What is Ri (Japanese Mile) used for?
Japanese mile ≈ 3.93 km. It is classified as historical and dates from the colonial period.
Is the Ri (Japanese Mile) value exact?
Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI metre, so the arithmetic itself introduces no rounding beyond the digits shown.
How reliable is this Ri (Japanese Mile) conversion?
Historically reconstructed — The unit is no longer in use and its value is reconstructed from historical and scholarly sources — treat it as indicative. Source: UnitConvertLab measurement atlas.
Cite this page
UnitConvertLab. (2026). Convert Ri (Japanese Mile) to kilometres. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/ri-japan-to-kilometer
Report an incorrect value or source
Regional units vary by district and by century. If this figure, its variant list or its citation is wrong where you are, tell us — the report carries the page context automatically.