current calculator
Easily calculate electrical current using Ohm’s Law:𝐼= 𝑉/R, with instant results for amps from voltage, resistance, or power.
voltage to current calculator
The passage of electric charge in a circuit is called electrical current. Current may be calculated by dividing voltage by resistance, or power by voltage using Ohm's Law.
Formula & Table Summary:
\( I = \frac{V}{R} \) or \( I = \frac{P}{V} \)
Where: I = current (A), V = voltage (V), R = resistance (Ω), P = power (W)
power to the current calculator
Current Calculator calculates the electrical current (in amps) based upon voltage, resistance, or power, using Ohm's law to quickly find accurate answers. Current is a metric defined in amperes (A) and is vital in designing, fault-finding, and tuning of electrical systems. The calculator is not limited to any electric current system since it can be used in both AC and DC circuitry. This is important as an electrician, engineer, or student can figure out the safe load capacity, the size of wires, and thus avoid overloading of equipment. In the case of electrical safety, efficiency, and extended device life spans, you can accurately determine the current and therefore use it to achieve better results.
AC current calculator
| Voltage (V) | Resistance (Ω) | Power (W) | Current (A) |
|---|---|---|---|
| 12 | 6 | — | 2 |
| 24 | 12 | — | 2 |
| 120 | — | 240 | 2 |
| 230 | 46 | — | 5 |
| 48 | — | 960 | 20 |
Frequently Asked Questions - current calculator:
What is electrical current?
It’s the flow of electric charge measured in amperes (A).
How to calculate current?
Use I=V/R if you know voltage and resistance, or I=P/V if you know power and voltage.
What units are used for current?
Current is measured in amperes (A).
Can this calculator work for AC and DC?
Yes, it works for both AC and DC circuits.
Why is calculating current important?
It helps in selecting proper wire sizes, fuses, and ensuring safety.
What if I have power and resistance?
You can use I=√(P/R) to find current.
Does higher voltage mean higher current?
Only if resistance stays the same.
Is this formula from Ohm’s Law?
Yes, I=V/R comes directly from Ohm’s Law.
Can current be negative?
Yes, in AC analysis, negative current indicates direction change.
Is current the same as voltage?
No, voltage is potential difference, current is the flow of charge.
