Time & Date Planning
Handle date differences, exact age, schedule math, and countdown planning from one set of utility tools.
Calculate output voltage and resistor values for voltage dividers
A voltage divider is a simple circuit that produces an output voltage that is a fraction of its input voltage. It consists of two resistors in series.
Vout = Vin × (R2 / (R1 + R2))
These grouped paths are designed to help you continue with the most common follow-up calculations in this category.
Handle date differences, exact age, schedule math, and countdown planning from one set of utility tools.
Estimate key materials for DIY and renovation work before you buy concrete, paint, tile, or flooring.
Switch between units, currencies, and common measurement systems without opening multiple tabs.
Use voltage dividers when you need to reduce voltage for sensors, create reference voltages, or interface between different voltage levels. They work best with minimal current draw from the output.
The load draws current, which affects the voltage division. Use higher value resistors or add a buffer amplifier (op-amp follower) to prevent loading effects.
Use values between 1kΩ and 100kΩ for most applications. Higher values reduce power consumption but may be affected by noise. Lower values provide more stable output but waste more power.