Convert kilometres to Ri (Japanese Mile)
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 kilometre = 0.254647 Ri (Japanese Mile)
Ri (Japanese Mile) = kilometres × 0.25464731
Convert any amount
kilometres to Ri (Japanese Mile) table
| kilometres | Ri (Japanese Mile) |
|---|---|
| 0.25 kilometres | 0.0636618 Ri (Japanese Mile) |
| 0.5 kilometres | 0.127324 Ri (Japanese Mile) |
| 1 kilometre | 0.254647 Ri (Japanese Mile) |
| 2 kilometres | 0.509295 Ri (Japanese Mile) |
| 3 kilometres | 0.763942 Ri (Japanese Mile) |
| 4 kilometres | 1.01859 Ri (Japanese Mile) |
| 5 kilometres | 1.27324 Ri (Japanese Mile) |
| 10 kilometres | 2.54647 Ri (Japanese Mile) |
| 20 kilometres | 5.09295 Ri (Japanese Mile) |
| 25 kilometres | 6.36618 Ri (Japanese Mile) |
| 50 kilometres | 12.7324 Ri (Japanese Mile) |
| 100 kilometres | 25.4647 Ri (Japanese Mile) |
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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.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 Ri (Japanese Mile) are in a kilometre?
1 kilometre = 0.254647 Ri (Japanese Mile). Multiply the number of kilometres by 0.25464731 to get Ri (Japanese Mile).
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 kilometres to Ri (Japanese Mile). UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/kilometer-to-ri-japan
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.