Parallel Resistance
Calculate the equivalent resistance for two resistors connected in parallel.
Educational purposes only. Not professional advice.
Examples
- R1=100 Ω, R2=100 Ω ⇒ 50 Ω
- R1=200 Ω, R2=300 Ω ⇒ 120 Ω
- R1=10 Ω, R2=20 Ω ⇒ 6.67 Ω
FAQ
Can more than two resistors be used?
This calculator is for exactly two resistors.
Are units important?
Both inputs must be in the same unit, typically ohms.
Why does equivalent resistance decrease?
Parallel paths allow more current, reducing total resistance.
Additional Information
- Result unit: Ω