| legacy units | the Harmonic System | difference/% | |||||
| 8 | feet | ≒ | 9 | harmons | (±h) | +0.52097 | |
| 9 | double hours | 8 | hyper nics | (♯n) | +0.00003 | ||
| hours | 4 | ||||||
| 4 | duodecimal centuries | 9 | hexons | (exact) | |||
| 14. | ounces | 3 | loolohs | (±l) | -0.35538 | ||
| 3 | acres | 8 | hyper squares | (♯q) | +1.33519 | ||
| 8 | 19;(21.) | -0.23092 | |||||
| 1 | cm3 | 1 | sub cube | (♭c) | -2.64370 | ||
| 5 | imperial bushels | 9 | harmonic cubes | (±c) | -0.01447 | ||
| 4 | U.S. bushels | 7 | +0.32422 | ||||
| 24 | gallons | (U.S. liquid) | 3 | +0.06464 | |||
| 26 | quarts | ||||||
| 27 | pints | ||||||
| 211. | ounces | ||||||
| 1 | gallon | ½ harmon × ½ harmon × ¾ harmons | |||||
| 100. | yards | 240; | harmons | (±h) | +0.07693 | ||
| 1 | nautical league | 1 | hyper harmon(s) | (♯h) | +1.62010 | ||
| 7 | miles | 2 | +0.26260 | ||||
| 200. | 49;(57.) | +0.01194 | |||||
| 1 | astronomical unit | X;(10.) | light solar tertia | (c0sE‴̃) | +0.19944 | ||
| 40. | NTSC frames | 3;5 (41./12.) | nics | (±n) | -0.00231 | ||