Electronics Tools

Solve for power, line current, or line-to-line voltage in a balanced AC system with MiniWebtool’s 3-Phase Power Calculator. Known electrical values and power factor determine the result, accompanied by real, apparent, and reactive power and a power-triangle diagram.

Choose an astable oscillator or a monostable one-shot in MiniWebtool’s 555 Timer Calculator. Resistor and capacitor values determine frequency, duty cycle, or pulse width, with a waveform showing how the timing relates to the output.

Current alone does not determine electrical power. MiniWebtool’s Amps to Watts Calculator combines amperage and voltage for DC, single-phase AC, or three-phase AC, applying power factor where needed and separating real, apparent, and reactive power.

Estimate resonant antenna dimensions from an operating frequency with MiniWebtool’s Antenna Length Calculator. Select a dipole, quarter-wave vertical, 5/8-wave vertical, or full-wave loop and a velocity factor to see element lengths in metric and imperial units.

MiniWebtool’s Battery Life Calculator estimates runtime from capacity and device consumption. Voltage and efficiency options support different units, while active/sleep behavior and self-discharge can refine an estimate for an intermittently operating device.

MiniWebtool’s Capacitor Calculator brings common capacitor calculations and code reading into one tool. Select a mode for the available capacitance, voltage, frequency, or resistance values, or decode a printed capacitor marking.

Compare wire area with NEC fill limits in MiniWebtool’s Conduit Fill Calculator. Mixed conductor sizes and insulation types determine the modeled fill percentage for a chosen conduit, with a cross-section and minimum trade-size option.

MiniWebtool’s Decibel (dB) Calculator works between logarithmic levels and linear ratios. Select power, voltage, ratio, or dBm/dBW conversion to see the appropriate formula and supporting reference values.

Starting an appliance can demand more power than keeping it running. MiniWebtool’s Generator Size Calculator combines your appliances’ running watts with the single largest starting surge to estimate the generator capacity required for that load arrangement.

Explore how resistance, inductance, capacitance, and frequency combine in an AC circuit. MiniWebtool’s Impedance Calculator handles series and parallel RLC arrangements, reporting impedance magnitude and phase with a phasor diagram and calculation steps.

Solve XL = 2*pi*f*L with MiniWebtool’s Inductive Reactance Calculator by entering two of reactance, frequency and inductance. Add voltage to see RMS current and the 90-degree lag.

Distinguish apparent, real, and reactive electrical power with MiniWebtool’s kVA Calculator. Supported circuit configurations and supplied voltage, current, or power values produce related quantities and a power-triangle view for examining the relationships.

Choose a current-limiting resistor for a single LED or series string with MiniWebtool’s LED Resistor Calculator. It calculates resistance and dissipation from circuit values and identifies a nearby E24 standard value with an illustrated circuit.

MiniWebtool’s Logic Gate Simulator evaluates circuits built from common digital gates. Inspect animated connections, truth tables, and Boolean forms to see how each combination of inputs determines the output.

Brightness and power consumption are different measurements. MiniWebtool’s Lumens to Watts Converter uses bulb-type efficiency assumptions to compare LED, CFL, halogen, and incandescent wattage for a chosen brightness, with estimated energy savings.

MiniWebtool’s Lux to Lumens Calculator estimates the light output needed for a target illuminance across a room. Enter area or dimensions to see lumens, a light-loss adjustment, and an approximate bulb count.

Convert battery charge capacity into energy using MiniWebtool’s mAh to Wh Converter. Voltage connects mAh with Wh, while a travel-threshold comparison and estimated usable capacity at 5 V help you interpret a power bank’s rating.

Enter any two of voltage, current, resistance and power in MiniWebtool’s Ohm’s Law Calculator. The other two are calculated, with the formula and the steps.

Find the combined resistance of 2–10 parallel resistors using MiniWebtool’s Parallel Resistor Calculator. It also shows how the branches divide current and dissipate power under the supplied circuit conditions.

Estimate PCB conductor width under the IPC-2221 model with MiniWebtool’s PCB Trace Width Calculator. Current, allowable temperature rise, copper weight, and internal or external layer selection determine width, with resistance and voltage-drop calculations.

Inspect real, reactive, and apparent power using MiniWebtool’s Power Factor Calculator. Supplied circuit quantities determine the power factor and power triangle, with a modeled capacitor requirement for correcting the selected load.

Explore how a capacitor charges or discharges in an RC circuit with MiniWebtool’s RC Time Constant Calculator. Resistance, capacitance, and supply voltage determine the time constant, curves, and voltage at a chosen time.

Read resistor bands or work backward from a resistance value with MiniWebtool’s Resistor Color Code Calculator. It supports four-, five-, and six-band formats, showing resistance, tolerance, and applicable temperature-coefficient information.

Series resistances add together. MiniWebtool’s Resistors in Series Calculator totals a list of resistor values; add a supply voltage to see circuit current, individual voltage drops, and power dissipation.

Find the relationship between inductance, capacitance, and resonance with MiniWebtool’s Resonant Frequency Calculator. Solve for a missing value in LC or RLC configurations, with Q and bandwidth where the circuit inputs allow.

Estimate a room’s lighting requirement with MiniWebtool’s Room Lighting Calculator. Room dimensions, ceiling height, use, and fixture output produce a lumen target, suggested bulb count, and scaled layout.

MiniWebtool’s Series/Parallel Capacitor Calculator combines up to twelve capacitances with mixed unit choices. Select the connection type to find equivalent capacitance and, with the relevant voltage inputs, charge distribution and stored energy.

MiniWebtool’s Transformer Calculator relates primary and secondary turns, voltages, currents, and power. Enter known quantities and efficiency assumptions to follow the calculations for an ideal or loss-adjusted transformer model.

MiniWebtool’s Voltage Divider Calculator finds an unloaded divider’s output or the resistance needed for a target voltage. Review current and each resistor’s power dissipation along with the voltage calculation.

Estimate conductor losses with MiniWebtool’s Voltage Drop Calculator. Wire material, gauge, run length, current, voltage, and phase determine modeled voltage drop; installation decisions also require the applicable electrical requirements.

Convert electrical power into current with MiniWebtool’s Watts to Amps Calculator. Choose DC, single-phase AC, or three-phase AC and enter voltage and applicable power factor to see the formula and result.

MiniWebtool’s Wire Gauge Calculator compares AWG sizes from 4/0 to 40. Select copper or aluminum and temperature rating to review diameter, area, resistance, reference ampacity, and an optional voltage-drop calculation.