555 Timer Calculator - Calculate frequency, period, and duty cycle for 555 timer circuits in astable and monostable modes. Enter R1, R2, and C values to get instant results with waveform visualization and step-by-step formulas. New
Battery Life Calculator - Calculate how long a battery will last based on capacity (mAh/Ah/Wh) and device consumption (mA/A/W). Features animated battery visualization, efficiency adjustments, and detailed runtime breakdowns for phones, laptops, IoT devices, and more. New
Capacitor Calculator - Calculate stored charge (Q=CV), energy (E=½CV²), and reactance (Xc=1/2πfC) for capacitors. Decode 3-digit ceramic capacitor codes instantly. Interactive animated diagram with step-by-step solutions. New
Decibel (dB) Calculator - Calculate power and voltage gain or loss in decibels, convert between dB and linear scale, and analyze signal levels with dBm and dBW conversions. New
Impedance Calculator - Calculate the total impedance of RLC series and parallel circuits at any frequency. Get magnitude, phase angle, phasor diagram, resonant frequency, Q factor, and step-by-step breakdown. New
LED Resistor Calculator - Calculate the correct current-limiting resistor for LED circuits. Supports single and series LEDs, finds nearest E24 standard resistor values, shows power dissipation, and includes an interactive animated circuit diagram. New
Ohm's Law Calculator - Calculate any electrical value (Voltage, Current, Resistance, Power) using Ohm's Law. Enter any two known values to instantly compute the other two with detailed formulas and step-by-step solutions. New
Parallel Resistor Calculator - Calculate the total equivalent resistance of 2 to 10 resistors connected in parallel. Features an interactive circuit diagram, step-by-step formula breakdown, current distribution analysis, and power sharing visualization. New
PCB Trace Width Calculator - Calculate the required trace width for your printed circuit board (PCB) based on current, temperature rise, and copper weight using IPC-2221 standard formulas. Includes visual trace preview, resistance calculation, and voltage drop analysis. New
Power Factor Calculator - Calculate real, reactive, and apparent power relationships, power factor correction, and power triangle analysis for AC circuits. Get step-by-step breakdown with formulas. New
RC Time Constant Calculator - Calculate RC charging and discharging curves, time constants, and voltage at any given time for resistor-capacitor circuits. Get step-by-step formulas and a complete time constant table. New
Resistor Color Code Calculator - Calculate resistance values from color bands with an interactive visual resistor diagram. Supports 4-band, 5-band, and 6-band resistors with real-time updates, tolerance ranges, and detailed explanations. New
Resonant Frequency Calculator - Calculate resonant frequency, bandwidth, and Q factor for LC and RLC circuits in series and parallel configurations. Solve for frequency, inductance, or capacitance with step-by-step MathJax formulas. New
Transformer Calculator - Calculate turns ratio, secondary voltage, primary and secondary current, and power for electrical transformers. Get step-by-step MathJax formulas for ideal and real transformer analysis. New
Voltage Divider Calculator - Calculate output voltage from a resistor divider network. Enter input voltage, R1, and R2 to find Vout instantly. Includes reverse calculation, interactive circuit diagram, step-by-step formulas, and power dissipation analysis. New
Voltage Drop Calculator - Calculate voltage drop in electrical wires based on wire type (copper/aluminum), AWG size, length, and load current. Essential for safe electrical installations, NEC compliance, and preventing power loss in residential, commercial, and industrial wiring. New
Wire Gauge Calculator - Calculate wire diameter, cross-sectional area, resistance per length, ampacity ratings, and voltage drop for American Wire Gauge (AWG) sizes from 4/0 to 40 AWG. Supports copper and aluminum conductors with NEC ampacity tables. New
All MiniWebtools