Amp to Volt Calculator
Convert current in amperes (Amps) to voltage in volts (Volts).
Ampere to Volt Converter
Common Amp to Volt Conversions
Click on these links to see instant conversions with common values:
Understanding Amp to Volt Conversion
Converting amperes (Amps) to voltage (Volts) primarily relies on Ohm's Law, which describes the relationship between voltage, current, and resistance in an electrical circuit.
Conversion Formula
Where:
• V = Voltage in Volts
• I = Current in Amperes
• R = Resistance in Ohms
Key Concepts
- Ampere (A): The unit of electric current, representing the flow of electric charge.
- Volt (V): The unit of electric potential difference, representing the electrical pressure that drives the current.
- Ohm (Ω): The unit of electrical resistance, representing the opposition to the flow of electric current.
- Ohm's Law: A fundamental law in electrical engineering stating that the current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them.
Typical Current and Resistance Values
| Component/Circuit | Current (A) | Resistance (Ω) | Approx. Voltage (V) |
|---|---|---|---|
| LED (small) | 0.02 | 100 | 2 |
| Resistor (common) | 0.1 | 220 | 22 |
| Small Motor | 2 | 6 | 12 |
| Heating Element | 10 | 24 | 240 |
| Speaker (8 Ohm) | 5 | 8 | 40 |
Frequently Asked Questions
Can I convert amps to volts without resistance?
No, you cannot directly convert amps to volts without knowing either the resistance (using Ohm's Law) or the power (using the power formula, where Volts = Watts / Amps). Voltage, current, and resistance are interconnected.
What is Ohm's Law?
Ohm's Law states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them. It is expressed as V = I × R.