Voltage Divider Calculator
Easily calculate the output voltage of a resistor voltage divider. Enter the input voltage and resistor values to get the output voltage instantly.
Voltage Divider Formula
- Vout = Vin × R2 / (R1 + R2)
Example Calculations
- Vin = 12V, R1 = 1kΩ, R2 = 2kΩ → Vout = 12 × 2000 / (1000 + 2000) = 8V
- Vin = 5V, R1 = 470Ω, R2 = 470Ω → Vout = 5 × 470 / (470 + 470) = 2.5V
Voltage Divider Table
| Vin (V) | R1 (Ω) | R2 (Ω) | Vout (V) |
|---|
| 12 | 1000 | 2000 | 8 |
| 5 | 470 | 470 | 2.5 |
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