🔌 Amps to Watts Converter
What is an Amps to Watts Converter?
An amps to watts converter is a tool that calculates electrical power by multiplying current (A) with voltage (V). The result is expressed in watts (W), which shows how much power a device consumes or delivers.
Whether you search for an amp to watt calculator, an A → W converter, or current-to-power tool, the formula remains the same:
Watts (W) = Amps (A) × Volts (V)
Why Use an Amp to Watt Converter?
Instantly estimate power usage of appliances and devices.
Compare electrical loads across different voltages (12V, 24V, 48V, 120V, 230V, 240V, etc.).
Essential for solar systems, batteries, inverters, car electronics, and generators.
Helps electricians, engineers, and DIY users plan circuits and energy needs.
Many people search “amp to watt calculator,” “A to W formula,” or “wattage from amps” — but all mean the same calculation.
Equivalent Amps and Watts Measurements
The following table shows how amps convert into watts at different voltages. Remember, the formula is always:
Watts (W) = Amps (A) × Volts (V)
| Amps (A) | Volts (V) | Watts (W) |
|---|---|---|
| 1A | 12V | 12W |
| 2A | 12V | 24W |
| 5A | 12V | 60W |
| 10A | 12V | 120W |
| 1A | 24V | 24W |
| 5A | 24V | 120W |
| 10A | 24V | 240W |
| 20A | 24V | 480W |
| 1A | 48V | 48W |
| 5A | 48V | 240W |
| 10A | 48V | 480W |
| 20A | 48V | 960W |
| 1A | 120V | 120W |
| 5A | 120V | 600W |
| 10A | 120V | 1200W |
| 20A | 120V | 2400W |
| 1A | 230V | 230W |
| 5A | 230V | 1150W |
| 10A | 230V | 2300W |
| 20A | 230V | 4600W |
| 1A | 240V | 240W |
| 5A | 240V | 1200W |
| 10A | 240V | 2400W |
| 20A | 240V | 4800W |
How to Use an Amp to Watt Calculator
Enter the current in amps (A).
Enter the system voltage (V).
The tool instantly calculates the power in watts (W).
✅ Examples:
5A × 12V = 60W
10A × 230V = 2300W
20A × 120V = 2400W
FAQs
🔹 Is Amps to Watts the same as A → W conversion?
Yes. Some people say amp to watt calculator while others call it A to W tool — both mean the same.
🔹 Can I calculate watts without volts?
No. You need at least voltage (V) or resistance (Ω).
Formulas:
W=A×VW = A \times V
W=A2×RW = A^2 \times R
🔹 How many watts is 10A at 120V?
10A × 120V = 1200W.
🔹 How much is 15A at 230V?
15A × 230V = 3450W.
🔹 How many watts does a 12V 10A device use?
12V × 10A = 120W.
🔹 Is higher amps always more power?
Not always. Power depends on both amps and volts. Example:
10A at 12V = 120W
10A at 240V = 2400W
Try Our Free Amps to Watts Converter Tool
Looking for fast and accurate results? Use our interactive A → W calculator below 👇
Final Thoughts
Whether you’re searching for an amp to watt calculator, A → W tool, or current-to-power conversion, the math is simple:
Watts = Amps × Volts
This formula works for everything from small electronics to large solar and electrical systems. Try the tool above to save time and avoid manual calculations.