Ampere to Volt Calculator – Free Online Tool
Quick Answer
Calculate voltage from current and resistance with this free Ampere to Volt calculator from Toolscal. Enter current and resistance values using Ohm's Law without signup or downloads.
Calculate voltage from current and resistance. Free Ampere to Volt calculator by Toolscal.
Amperes (A) measure current and volts (V) measure voltage. They are related by Ohm\'s Law: V = I × R (voltage = current × resistance). This free calculator by Toolscal helps you calculate voltage when you know current and resistance.
Enter a numeric value to convert
Conversion Formula
To calculate voltage, multiply current (amperes) by resistance (ohms).
Example: 5 A × 10 Ω = 50 V
Example Conversions
Conversion Table
| Amperes (Current) | Volts (Voltage) |
|---|---|
| 1 A @ 1 Ω | 1 V |
| 1 A @ 10 Ω | 10 V |
| 2 A @ 12 Ω | 24 V |
| 5 A @ 10 Ω | 50 V |
| 5 A @ 24 Ω | 120 V |
| 10 A @ 12 Ω | 120 V |
| 10 A @ 24 Ω | 240 V |
| 15 A @ 16 Ω | 240 V |
| 20 A @ 12 Ω | 240 V |
| 100 A @ 1 Ω | 100 V |
Frequently Asked Questions
How do I convert amperes to volts?
Use Ohm's Law: V = I × R. Multiply current (amperes) by resistance (ohms) to get voltage (volts). Use Toolscal's free calculator.
What is Ohm's Law?
Ohm's Law states that voltage (V) equals current (I) multiplied by resistance (R): V = I × R. It's fundamental in electrical calculations.
Can I directly convert amperes to volts?
No, you need to know the resistance. Amperes and volts measure different things (current vs voltage) and require resistance to relate them.