CalculatorCentrum
Simple, focused calculators for everyday engineering and math.
Electronics
Calculators for circuits, components, and electronic design.
- Capacitor Charge & Discharge Calculator
- RC Time Constant Calculator
- Decibel (dB) Converter
- Potential Divider Calculator
- Capacitor Constant Current Calculator
- NTC Thermistor Calculator
- PT100 / PT1000 RTD Calculator
- Temperature Sensor Front-End Calculator
- I²C Pull-up Resistor Calculator
- PCB Trace Current Calculator
- Via Current & Properties Calculator
- PCB Impedance Calculator
- Planar Inductor Calculator
- Ohm's Law Calculator
- LED Series Resistor Calculator
- Resistor Series & Parallel Calculator
- Capacitor Series & Parallel Calculator
- Inductor Series & Parallel Calculator
- LC Resonant Frequency Calculator
- Reactance Calculator (Capacitive & Inductive)
- Wavelength Calculator
- Op-Amp Gain Calculator
- Wire Voltage Drop Calculator
- dBm to Watts Converter
- 555 Timer Calculator
- Resistor Color Code Calculator
- AWG Wire Gauge Calculator
IoT
Calculators for battery-powered, wireless, and low-power IoT devices.
Finance
Calculators for loans, interest, and everyday personal finance.