8/3
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| Ratio | 8/3 |
| Factorization | 23 × 3-1 |
| Monzo | [3 -1⟩ |
| Size in cents | 1698.045¢ |
| Name | perfect eleventh |
| Color name | w11, wa 11th |
| FJS name | [math]\text{P11}[/math] |
| Tenney height (log2 nd) | 4.58496 |
| Weil height (log2 max(n, d)) | 6 |
| Wilson height (sopfr (nd)) | 9 |
| Harmonic entropy (Shannon, [math]\sqrt{n\cdot d}[/math]) |
~4.47545 bits |
[sound info] | |
| open this interval in xen-calc | |
8/3 is the ratio between the 3rd and 8th harmonics; one octave above 4/3. In non-microtonal music, it is often referred to as the perfect eleventh.