The Series Circuit Calculator helps determine the total resistance of resistors connected in a series circuit. In a series connection, the current remains constant through all components, while the total resistance equals the sum of all individual resistances, following the formula Rt=R1+R2+R3+R4R_t = R_1 + R_2 + R_3 + R_4Rt​=R1​+R2​+R3​+R4​. By entering the values of each resistor, this calculator instantly computes the overall resistance of the circuit. It is an essential tool for physics students, electricians, and electronics learners to understand how multiple resistors behave in a series configuration and how they affect current flow and voltage distribution in an electrical circuit.