Professionelle Elektrotechnik-Rechner für Energiesysteme, Kabeldimensionierung, Spannungsabfall und Kurzschlussanalyse. Basierend auf IEC- und NEC-Normen.
52 Rechner
Calculate current (A) using power (W) and voltage (V)
Calculate power (W) using current (A) and voltage (V)
Calculate apparent power (VA) using current (A) and voltage (V)
Calculate current (A) using power (kW), voltage (V), and power factor
Calculate current (A) using apparent power (VA) and voltage (V)
Calculate voltage (V) using power (W) and current (A)
Calculate watts, volts, amps, and ohms using Ohm's Law. Enter any 2 values
Calculate power (kW) using current (A), voltage (V), and power factor
Calculate active power (kW) using apparent power (kVA) and power factor
Convert kilowatt-hours (kWh) energy consumption to watts (W) power
Calculate voltage divider circuit parameters using Ohm's Law
Calculate voltage, current, resistance, and power using Ohm's Law
Calculate short circuit currents for electrical systems
Select appropriate cable size based on current rating and installation conditions
Calculate voltage drop in electrical cables based on current, length, and cable properties
Calculate power factor, apparent power, and capacitor correction recommendations
Convert voltage (V) to power (W). Supports DC, AC single-phase, and AC three-phase systems
Convert power in watts (W) to energy in kilowatt-hours (kWh). Calculate total energy consumption
Convert energy (kilowatt-hours) to power (kilowatts) over time
Convert voltage to power (kW) for DC and AC systems. Supports single-phase and three-phase with power factor
Convert real power (W) to apparent power (VA). Calculate reactive power, phase angle, and power factor
Convert real power (watts) to apparent power (kVA) using power factor
Convert apparent power (VA) to real power (kW) using power factor
Convert real power (kW) to apparent power (VA) using power factor
Convert apparent power (kVA) to real power (watts) using power factor for electrical system calculations
Convert voltage to current (amperes) using power and resistance for DC and AC circuits
Convert voltage to electrical energy (joules). Calculate energy stored in capacitors and batteries
Convert energy (joules) to voltage using electric charge for capacitor and battery calculations
Convert power (watts) to energy (joules) over time. Calculate energy consumption for electrical devices
Convert voltage to electron-volts. Essential for quantum physics, particle energy, and photon calculations
Calculate required transformer capacity based on load power and expansion needs
Calculate electrical power for DC circuits and AC systems using voltage, current, resistance, or power factor
Convert active power (kW) to apparent power (kVA)
Convert battery capacity (mAh) to energy (Wh) using voltage
Convert battery energy (Wh) to capacity (mAh) using voltage
Convert energy (Joules) to power (Watts) over time
Decode resistor color bands and calculate resistance values
Calculate the appropriate resistor value for LED circuits
Calculate energy stored in capacitors, charge, and discharge characteristics
Calculate energy stored in inductors, magnetic flux, and voltage spikes during discharge
Calculate battery runtime and capacity requirements
Convert current (amps) to voltage using power or resistance with Ohm's Law formulas
Convert apparent power (VA) to real power (watts) using power factor
Convert power (kW) to energy (kWh) over time with daily, monthly, and yearly consumption
Calculate apparent power (kVA) from current (amps) and voltage for single and three-phase systems
Calculate daily, monthly, and yearly energy consumption from power and usage time
Convert apparent power (kVA) to current (Amps)
Create NEC 2023 compliant electrical panel schedules with automatic load calculations, breaker sizing, and wire selection. Professional PDF export included.
Convert American Wire Gauge (AWG) to metric measurements including diameter, area, resistance, and ampacity based on ASTM B258 and NEC 2023
Convert between lumens and watts for different light source types (LED, CFL, incandescent, halogen). Calculate energy savings and cost comparisons with efficacy ratings.
Convert between lux (illuminance) and lumens (luminous flux) using surface area. Calculate lighting requirements based on EN 12464-1 and IES standards.
Convert between candela (luminous intensity) and lumens (luminous flux) using solid angles. Supports isotropic, hemisphere, and custom beam angle patterns.