total current calculator
Quickly calculate the total current in series or parallel circuits using voltage, resistance, and Ohm’s Law. Supports single-phase and three-phase systems.

amps in circuit, total amps calculator
Total current in the series is found by dividing total voltage of the circuit by total resistance. In parallel circuits, it is the addition of all the branch currents.
Formula & Table Summary:
Series: \( I_{\text{total}} = \frac{V}{R_{\text{total}}} \)
Parallel: \( I_{\text{total}} = I_1 + I_2 + \dots + I_n \)
sum of current calculator
The overall current moves by dividing the overall voltage by the total resistance in series circuits. In parallel circuits, it is the amount of current in all the branch circuits.Parallels circuits are used to calculate the amount of current in all the branch circuits.This will be applicable in both the AC and DC systems where engineers, electricians, and students can simply calculate the capacity of loads in a circuit and the effective conductors sizes to use. Knowing the total current will provide safe operation and help avoid overheating as well as it can be used to optimize system performance. This calculator delivers an immediate and secure solution regardless of the project you are working on whether on household wiring, industrial system or electronic projects.
parallel current calculator
Circuit Type | Voltage (V) | Resistance(s) (Ω) | Branch Currents (A) | Total Current (A) |
---|---|---|---|---|
Series | 24 | 12 | — | 2 |
Series | 120 | 40 | — | 3 |
Parallel | — | — | 2, 3 | 5 |
Parallel | — | — | 5, 5 | 10 |
Parallel | — | — | 1.5, 2.5, 3 | 7 |
Frequently Asked Questions - total current calculator:
What is total current?
It’s the total amount of electrical current flowing through a circuit.
How do you calculate total current in series?
Use I=V/Rtotal, where V is voltage and Rtotal is the sum of all resistances.
How do you calculate total current in parallel?
Add all branch currents together.
Does total current differ in series and parallel?
Yes, in series it’s the same in all components, in parallel it splits and then sums.
What units measure total current?
Amperes (A).
Can total current exceed branch current?
Yes, in parallel circuits total current is the sum of branch currents.
Is total current the same as supply current?
Yes, in most cases they are the same.
Does voltage affect total current?
Yes, higher voltage increases current if resistance stays the same.
Can this calculator work for AC?
Yes, it supports both AC and DC systems.
Why calculate total current?
It ensures safe load limits and helps size electrical components.
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