555 Timer (Astable)
Calculate 555 Timer (Astable) instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
555 Timer (Astable)
R1, kΩ
R2, kΩ
C, µF
f
48Hz
More about: 555 Timer (Astable)
What it calculates
The “555 Timer (Astable)” calculator computes f in Hz from 3 parameters: r1, kω, r2, kω, c, µf.
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters R1, kΩ = 10, R2, kΩ = 10, C, µF = 1 the result is 48 Hz.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.