Convert Ri (Japanese Mile) to metres
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 metres
metres = Ri (Japanese Mile) × 3,927
Convert any amount
Ri (Japanese Mile) to metres table
| Ri (Japanese Mile) | metres |
|---|---|
| 0.25 Ri (Japanese Mile) | 981.75 metres |
| 0.5 Ri (Japanese Mile) | 1,963.5 metres |
| 1 Ri (Japanese Mile) | 3,927 metres |
| 2 Ri (Japanese Mile) | 7,854 metres |
| 3 Ri (Japanese Mile) | 11,781 metres |
| 4 Ri (Japanese Mile) | 15,708 metres |
| 5 Ri (Japanese Mile) | 19,635 metres |
| 10 Ri (Japanese Mile) | 39,270 metres |
| 20 Ri (Japanese Mile) | 78,540 metres |
| 25 Ri (Japanese Mile) | 98,175 metres |
| 50 Ri (Japanese Mile) | 196,350 metres |
| 100 Ri (Japanese Mile) | 392,700 metres |
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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.
Related conversions
Frequently asked
How many metres are in a Ri (Japanese Mile)?
1 Ri (Japanese Mile) = 3,927 metres. Multiply the number of Ri (Japanese Mile) by 3,927 to get metres.
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 metres. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/ri-japan-to-meter
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