My World Tools

Musical Note Frequencies

Tap a note to hear it and see its frequency.

C
C#
D
D#
E
F
F#
G
G#
A
A#
B

You might also find these useful

Sequence ConvergenceWatch classic sequences like (1+1/n)ⁿ converge toward their famous limits.
Poisson DistributionAdjust the average event rate and see how the Poisson distribution shape changes.
Measurement Error AnalysisEnter a set of measurements and the true value to see absolute, relative, and standard errors.
Advertisement
Fractal ViewerExplore the Mandelbrot and Julia sets — click anywhere to zoom into the pattern.
Scientific Unit ConverterConvert between pressure, energy, power, data storage, and frequency units.
Loan & Savings CalculatorEstimate monthly loan payments or project savings growth with compound interest.
Advertisement