A working copy of the calculator lives here: [Interval Calculator | UnTwelve]
Insert a 'n/d', a floating point number, or an interval from an equal division of the octave below. Equal divisions are entered by means of x\y, where x\y means "x steps out of y EDO." For example, 7\12 means 7 steps out of 12-EDO, and refers to the 700 cent interval. To enter a number of cents, simply type c\1200, where c is the number of cents you want.
|Linear rational approximations (convergents in bold, semi-convergents in normal typeface):||EDO approximations (written as DEGREE\EDO; convergents in bold, semi-convergents in normal typeface):|