Convert centimetres 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 centimetre = 0.0000025465 Ri (Japanese Mile)
Ri (Japanese Mile) = centimetres × 0.0000025465
Convert any amount
centimetres to Ri (Japanese Mile) table
| centimetres | Ri (Japanese Mile) |
|---|---|
| 0.25 centimetres | 6.3662e-7 Ri (Japanese Mile) |
| 0.5 centimetres | 0.0000012732 Ri (Japanese Mile) |
| 1 centimetre | 0.0000025465 Ri (Japanese Mile) |
| 2 centimetres | 0.0000050929 Ri (Japanese Mile) |
| 3 centimetres | 0.0000076394 Ri (Japanese Mile) |
| 4 centimetres | 0.0000101859 Ri (Japanese Mile) |
| 5 centimetres | 0.0000127324 Ri (Japanese Mile) |
| 10 centimetres | 0.0000254647 Ri (Japanese Mile) |
| 20 centimetres | 0.0000509295 Ri (Japanese Mile) |
| 25 centimetres | 0.0000636618 Ri (Japanese Mile) |
| 50 centimetres | 0.000127324 Ri (Japanese Mile) |
| 100 centimetres | 0.000254647 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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.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 centimetresVaries by locality
- Cun (Chinese Inch) to centimetresConventional value
- Zhang to centimetresConventional value
- Li (Chinese Mile) to centimetresConventional value
- Shaku (Japanese) to centimetresConventional value
- Sun (Japanese) to centimetresConventional value
- Ken (Japanese) to centimetresConventional value
Related conversions
Frequently asked
How many Ri (Japanese Mile) are in a centimetre?
1 centimetre = 0.0000025465 Ri (Japanese Mile). Multiply the number of centimetres by 0.0000025465 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 centimetres to Ri (Japanese Mile). UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/centimeter-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.