AC Electrical Engineering
Online calculators for alternating current calculations
AC Fundamentals
Alternating Voltage Values
RMS, peak, peak-to-peak, rectified
AC Voltage and Time
Instantaneous value u(t) at time t
AC Voltage and Angle
Instantaneous value u(φ) at angle φ
Frequency and Wavelength
λ = c/f and f = c/λ relations
Frequency and Periodic Time
f = 1/T and T = 1/f conversions
Sine Wave RMS Values
Sine Wave RMS
RMS of pure sine wave
Sine Wave with Offset
RMS with DC offset
Half-Wave Rectified Sine
Half-wave rectification RMS
Full-Wave Rectified Sine
Full-wave rectification RMS
Square Wave RMS Values
Square Wave Voltage
Square wave RMS
Square Pulse
Square pulse RMS
Triangle Wave RMS Values
Triangle Wave Voltage
Triangle wave RMS
Triangle Pulse
Triangular pulse RMS
Sawtooth Wave RMS Values
Sawtooth Voltage
Sawtooth wave RMS
Sawtooth Pulse
Sawtooth pulse RMS
About AC Calculators
Our AC calculators provide accurate RMS value calculations for various waveforms. From basic sine waves to complex pulse patterns - all important calculations are covered.
- Fundamentals - Frequency, phase, time
- Sine Waves - Pure, offset, rectified
- Square Waves - Voltage and pulses
- Triangle Waves - Voltage and pulses
- Sawtooth - Voltage and pulses
- RMS Values - For all waveforms
Note: RMS (Root Mean Square) values are essential for AC power
calculations and represent the effective value of alternating quantities.
Important Formulas
RMS Values
URMS = Umax / √2 (Sine)
URMS = Umax (Square)
URMS = Umax / √3 (Triangle)
Frequency
f = 1/T
λ = c/f
Waveform Types
Sine: Most common AC waveform
Square: Digital signals, PWM
Triangle: Audio synthesis
Square: Digital signals, PWM
Triangle: Audio synthesis
Sawtooth: Ramp signals
Rectified: Power supplies
Offset: Mixed AC/DC signals
Rectified: Power supplies
Offset: Mixed AC/DC signals