DC DC Amps AC 1φ AC 3φ (L-L)AC 3φ (L-N)kV to MW MW to Amps DC to AC

DC Amps to Watts

Convert electrical current or amperage in amps to power in watts and milliwatts (mW). Supports DC, single-phase, and three-phase AC circuits.

Current (Amps)

Voltage (Volts )

Calculated Power Output

0Watts

= 0 mW

Formula: P = I × V

DC Quick Reference (120V)

Current (Amps)	Voltage (Volts)	Power (MW)
4.16 mA (500mW)	120 V	0.00 kW
1 A	120 V	0.12 kW
10 A	120 V	0.0012 MW
20 A	120 V	0.0024 MW
30 A	120 V	0.0036 MW
50 A	120 V	0.0060 MW
100 A	120 V	0.0120 MW

Industrial & High Voltage Benchmarks (11kV, 33kV, 4000A)

System / Label	Voltage	Current	Power (MW)
11 kV System	11 kV	100 A	1.52 MW
11 kV System	11 kV	500 A	7.62 MW
33 kV System	33 kV	100 A	4.57 MW
33 kV System	33 kV	500 A	22.86 MW
High Current	0 kV	4000 A	2.30 MW

* Industrial calculations assume 3-Phase L-L system with PF=0.8.

DC Power Calculation

P(W) = I(A) × V(V)

To get Milliwatts (mW): P(mW) = P(W) × 1000

For Direct Current (DC) circuits, power is simply the product of current and voltage.

Example: 2A × 120V = 240W

Amperage & DC Power FAQ

What is DC amperage?

DC amperage refers to the strength of a direct current (DC) electrical flow, measured in Amperes (Amps). It represents the rate at which electric charge flows through a conductor in a single, constant direction, typically from batteries or solar panels.

How to calculate DC amps?

To calculate DC amps (amperage), you use the formula: Amps = Watts / Volts. For instance, a 120-watt light bulb running on a 12-volt DC battery draws 10 amps of current.

Is amperage the same as current?

Yes, in practical terms, they refer to the same thing. 'Current' is the flow of electric charge, and 'amperage' is the measure of that flow in Amperes. It's like the difference between 'distance' and 'mileage'.