✓
Local calculation
Entered values never leave your device.
Entered values never leave your device.
Advertisement — reserved space reduces layout shift
How the calculation works
Calculate equivalent resistance for any number of parallel resistors. The tool converts the form units and presents the result using readable engineering notation.
1/Rₜ = 1/R₁ + 1/R₂ + …
Example
Two 1 kΩ resistors in parallel give 500 Ω.
How to interpret the result
- Parallel resistance is always lower than the smallest branch resistor.
- Current divides between branches according to resistance.
- Check power in each branch, especially when values differ widely.
Limitations and safe use
The result uses a simplified model. Check tolerance, temperature, absolute ratings and the component datasheet.
FAQ
Is the result saved?
The latest result may be stored locally in this browser, but it is not sent to LutujTo.
Can I use the result in a project?
Yes, but select a real component with margin and confirm its ratings in the datasheet.