Here is what I have longed for for so long, a table that tells me the frequency in Hz for various musical notes:

Frequency in hertz (semitones above or below middle C)
Octave → Note ↓	0	1	2	3	4	5	6	7	8	9
C	16.352 (−48)	32.703 (−36)	65.406 (−24)	130.81 (−12)	261.63 (0)	523.25 (+12)	1046.5 (+24)	2093.0 (+36)	4186.0 (+48)	8372.0 (+60)
C♯/D♭	17.324 (−47)	34.648 (−35)	69.296 (−23)	138.59 (−11)	277.18 (+1)	554.37 (+13)	1108.7 (+25)	2217.5 (+37)	4434.9 (+49)	8869.8 (+61)
D	18.354 (−46)	36.708 (−34)	73.416 (−22)	146.83 (−10)	293.66 (+2)	587.33 (+14)	1174.7 (+26)	2349.3 (+38)	4698.6 (+50)	9397.3 (+62)
D♯/E♭	19.445 (−45)	38.891 (−33)	77.782 (−21)	155.56 (−9)	311.13 (+3)	622.25 (+15)	1244.5 (+27)	2489.0 (+39)	4978.0 (+51)	9956.1 (+63)
E	20.602 (−44)	41.203 (−32)	82.407 (−20)	164.81 (−8)	329.63 (+4)	659.26 (+16)	1318.5 (+28)	2637.0 (+40)	5274.0 (+52)	10548 (+64)
F	21.827 (−43)	43.654 (−31)	87.307 (−19)	174.61 (−7)	349.23 (+5)	698.46 (+17)	1396.9 (+29)	2793.8 (+41)	5587.7 (+53)	11175 (+65)
F♯/G♭	23.125 (−42)	46.249 (−30)	92.499 (−18)	185.00 (−6)	369.99 (+6)	739.99 (+18)	1480.0 (+30)	2960.0 (+42)	5919.9 (+54)	11840 (+66)
G	24.500 (−41)	48.999 (−29)	97.999 (−17)	196.00 (−5)	392.00 (+7)	783.99 (+19)	1568.0 (+31)	3136.0 (+43)	6271.9 (+55)	12544 (+67)
G♯/A♭	25.957 (−40)	51.913 (−28)	103.83 (−16)	207.65 (−4)	415.30 (+8)	830.61 (+20)	1661.2 (+32)	3322.4 (+44)	6644.9 (+56)	13290 (+68)
A	27.500 (−39)	55.000 (−27)	110.00 (−15)	220.00 (−3)	440.00 (+9)	880.00 (+21)	1760.0 (+33)	3520.0 (+45)	7040.0 (+57)	14080 (+69)
A♯/B♭	29.135 (−38)	58.270 (−26)	116.54 (−14)	233.08 (−2)	466.16 (+10)	932.33 (+22)	1864.7 (+34)	3729.3 (+46)	7458.6 (+58)	14917 (+70)
B	30.868 (−37)	61.735 (−25)	123.47 (−13)	246.94 (−1)	493.88 (+11)	987.77 (+23)	1975.5 (+35)	3951.1 (+47)	7902.1 (+59)	15804 (+71)