Series Capacitor Calculator

This tool calculates the total capacitance for any number of capacitors connected in series.


	

			

		

						

				

				

                

			

			
						

		

		











Formula





When capacitors are connected in series, the total or equivalent capacitance (Ctotal​) is less than any individual capacitor’s capacitance in the circuit. 





The formula to calculate the total capacitance of n capacitors connected in series is given by the reciprocal of the sum of the reciprocals of their individual capacitances:





1/Ctotal​ = 1/C1​​+ 1/C2​ ​+ ⋯ +Cn​​





Or for two capacitors in series, it simplifies to:





1/Ctotal​ = 1/C1​​+ 1/C2​ ​​





And Ctotal can be found by taking the reciprocal of the sum:





Ctotal =  C1C2/(C1+C2)





Example Calculation





Two capacitors with values 1 µF and 3 µF in series gives a total series capacitance value of 0.75 µF.





👉 Try the parallel capacitor calculator





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