Japanese Measurements

Premodern Japanese measurements consisted of the following:

Length

Metric Equivalents

• 1 Rin (厘) = .0303 Centimeters.
• 1 Sun (寸) = 3.03 Centimeters.
• 1 Ata (咫) = 18 Centimeters.
• 1 Shaku (尺) = 30.3 Centimeters.
• 1 Ken (間) = 1.8182 Meters.
• 1 Jô (丈) = 3.03 Meters.
• 1 Chô (町) = 109.9 Meters.
• 1 Ri (里) = 3927.2 Meters.

Comparative Lengths

• 1 Shaku (尺) = 10 Sun (寸)
• 1 Jô (丈) = 10 Shaku (尺)
• 1 Ken (間) = 6 Shaku (尺)
• 1 Chô (町) = 60 Ken (間)
• 1 Ri (里) = 36 Chô (町)