Astable Multivibrator Calculator

Calculate frequency and timing for astable oscillator circuits.

Circuit Parameters

Circuit Type

R1 (Ohms) - Charge Path

R2 (Ohms) - Charge/Discharge Path

Capacitor C (uF)

Supply Voltage Vcc (V)

481.00 Hz

Frequency

2.079 ms

Period

66.7%

Duty Cycle

T High (Output High)1.3860 ms

T Low (Output Low)0.6930 ms

Power Dissipation~15.0 mW

3.50 V

V_OH (High)

0.10 V

V_OL (Low)

T_high = 0.693 * (R1 + R2) * C

T_low = 0.693 * R2 * C

f = 1.44 / ((R1 + 2*R2) * C)