The volt (V) is the SI unit of electric potential difference, the "push" that drives current through a circuit.
Volts to Watts
Convert Volt (V) to Watt (W) instantly with an exact formula, conversion table, and FAQ.
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Convert volts (V) to watts (W) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
The watt (W) is the SI unit of power, equal to one joule of energy transferred per second.
W = V × 1
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Formula
W = V × 1
V = W × 1
Conversion table
| 1 V | 1 W |
| 5 V | 5 W |
| 10 V | 10 W |
| 20 V | 20 W |
| 50 V | 50 W |
| 100 V | 100 W |
| 500 V | 500 W |
| 1000 V | 1000 W |
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How the formula works
Both volt and watt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in volts by 1 to get watts. To reverse the conversion, multiply a watt value by 1 to get back to volts.
Frequently asked questions
What is Volt (V)?
The volt (V) is the SI unit of electric potential difference, the "push" that drives current through a circuit.
What is Watt (W)?
The watt (W) is the SI unit of power, equal to one joule of energy transferred per second.
How do I convert volts to watts?
Multiply the volt value by 1 to get the equivalent in watts. For example, 5 V × 1 = 5 W.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1 is an exact, non-rounded value.
Can I convert watts back to volts?
Yes. Divide the watt value by 1, or multiply it by 1, to get volts.
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About converting volts to watts
The volt (V) is the SI unit of electric potential difference, the "push" that drives current through a circuit. The watt (W) is the SI unit of power, equal to one joule of energy transferred per second.
Use this calculator to move between volts and watts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.