Use this free online calculator to convert Ri [Japan] to Lap [Old] instantly. This all length conversions conversion tool provides accurate results for all your measurement needs.

Quick Reference

1 Ri [Japan] = 9.7605 Lap [Old]

1 Lap [Old] = 0.102454 Ri [Japan]

Ri [Japan] to Lap [Old] Conversion Formula

To convert Ri [Japan] to Lap [Old], multiply by 9.7605.

Lap [Old] = Ri [Japan] × 9.7605

Ri [Japan] = Lap [Old] × 0.102454

To convert Lap [Old] back to Ri [Japan], divide by 9.7605 (or multiply by 0.102454).

About These Units

About Ri [Japan]

The ri is a traditional Japanese unit of distance, sometimes called the Japanese league because it is of similar length to the European league. The ri equals 2160 ken or 12 960 shaku (the shaku being the Japanese equivalent of the foot). This is about 3927 meters or 2.44 statute miles.

About Lap [Old]

The old lap is a traditional unit of distance used in historical track and field measurements, measuring approximately 402.336 meters. This measurement represents an older standard for running track lap distances that was used before modern standardization. It was commonly used in early athletics and racing competitions.

Ri [Japan] to Lap [Old] Conversion Table

Ri [Japan]	Lap [Old]	Lap [Old]	Ri [Japan]
0.1	0.976050	0.1	0.010245
0.5	4.8802	0.5	0.051227
1	9.7605	1	0.102454
2	19.5210	2	0.204908
5	48.8025	5	0.512269
10	97.6050	10	1.0245
20	195.2100	20	2.0491
25	244.0125	25	2.5613
50	488.0249	50	5.1227
100	976.0499	100	10.2454
250	2440.12	250	25.6134
500	4880.25	500	51.2269
1000	9760.50	1000	102.4538

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