Kevin Chen

LED Circuit LED Series Resistor Calculator Supply Voltage (V)

🌡️ Temperature Conversion Tool Convert instantly between Celsius, Fahrenheit, Kelvin, and Rankine Celsius (°C) Fahrenheit (°F) Kelvin (K) Rankine (°R) Reset All Visual Comparison of Temperature Scales Temperature Scale ComparisonAbsolute Zero-273.15°C-459.67°F0 K / 0°RWater Freezes0°C32°F273.15K / 491.67°RBody Temp37°C98.6°F310.15K / 558.27°RWater Boils100°C212°F373.15K / 671.67°RCelsius °CFahrenheit °FKelvin KRankine °R°F = °C × 9/5 + 32 | K

Reactance and Admittance CalculatorDetermine the reactance or admittance magnitude of an inductor or capacitor at any given frequency. Quick Formula Guide: Inductive Reactance $X_L = 2\pi f L$, Capacitive Reactance $X_C = \frac{1}{2\pi f C}$. Admittance magnitude ($B$) is the reciprocal of reactance ($B = \frac{1}{X}$). Reactance Trends vs. Frequency (f)fXX_L = 2πfLX_C = 1

Current Divider CalculatorCalculate current distribution across up to 10 parallel resistors quickly and accurately. How it works: The total input current ($I_{total}$) divides among parallel branches. The current through any branch is inversely proportional to its resistance: $I_x = I_{total} \times \frac{R_{equivalent}}{R_x}$. All calculations happen instantly as you type. Parallel Current Divider CircuitTotal I (In)R1R2Rn…

BAT Battery Life Calculator Battery Capacity (mAh) Consumption (mA) Estimated Life (Hours) Calculate Life Disclaimer: Calculations are estimates based on a 70% efficiency factor to account for external environmental variables and self-discharge. Predicting Runtime: A Technical Analysis of Battery Longevity Determining accurate runtime for industrial IoT devices and portable electronics is a cornerstone of effective