NE555 Astable Circuit Calculator 

NE555 Astable Calculator

Capacitance(C):

micro Farad(μF) nano Farad(nF)

Resistance 1 (R1):

ohm(Ω) Kilo ohm(KΩ) Mega ohm(MΩ)

Resistance 2 (R2):

ohm(Ω) Kilo ohm(KΩ) Mega ohm(MΩ)

Time Low(T2):

Time High(T1):

Period(T):

Frequency:

Duty Cycle: