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→All Intervals
| C || C || 0 || U || Unison || 1:1
|-
| C || D{{flatf}} || 1 || m2 || Minor 2nd || 16:15
|-
| C || D || 2 || M2 || (Major) 2nd || 9:8
|-
| C || E{{flatf}} || 3 || m3 || Minor 3rd || 6:5
|-
| C || E || 4 || M3 || Major 3rd || 5:4
| C || F || 5 || P4 || (Perfect) 4th ||4:3
|-
| C || G{{flatf}} || 6 || a4A4, d5, tt || Augmented 4th/<br />Diminished 5th/<br />Tritone || 45:32
|-
| C || G || 7 || P5 || (Perfect) 5th ||3:2
|-
| C || A{{flatf}} || 8 || m6 || Minor 6th || 8:5
|-
| C || A || 9 || M6 || Major 6th || 5:3
|-
| C || B{{flatf}} || 10 || m7 || (Minor) 7th || 9:5
|-
| C || B || 11 || M7 || Major 7th || 15:8
|}
Where the names have ()'s around a word in the description, that word is optional, and often omitted. Major 2nd, perfect 4th, and perfect 5th, and minor 7th are all implied by 2nd, 4th, and 5th. Sometimes you may see interval names not listed above, like A6 (augmented 6th) or d7 (diminished 7th). Augmented simply means raised a half-step and 7thdiminished means lowered a half-step. So an A6 is really the same interval as a m7, and a d7 is the same as a M6. The reason the alternate names are occasionally used is due to a different harmonic function than usual.
Let's hear some of the different intervals: