Total Resistance Calculator – Series

This calculator determines the total effective resistance of any number of resistors in a series configuration.

Series Resistance Calculator

Enter the resistor values separated by commas.


	

			

		

						

				

				

                

			

			
						

		

		






Series Resistance Formula





Rtotal = R1 + R2 + R3 +…. + Rn





Example Calculation





Consider four resistors in series: 1 Ω, 6 Ω, 15 Ω and 100 Ω. The total effective resistance is 122 Ω.





If you have two resistors – one large and the other small in series, the effective resistance is closer to the larger value. Take for instance, 





1 Ω and 1000 Ω in series. The effective resistance is 1001 ≈ 1000 Ω.





In the event that the same two resistors are in parallel, the effective resistance is closer to the smaller value. 





1 Ω in parallel with 1000 Ω is 0.999 Ω ≈ 1 Ω.





Application





Used to calculate the total impedance of audio speakers connected in series.





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