Lineto line voltage calculation P (W) =√3 x PF x I(A) x V L-L (V), which means that the power in watts is equal to the square root of three multiplied by the power factor by the phase current in amperes times the line to line voltage of RMS in volts (V) Line to neutral voltage calculation P (W) = 3 x PF x I (A) x V L-N (V), which means that Ifyou want to know the power consumption in watts for an appliance with a current of 3 amps and a voltage of 110, your calculation would be: Amps ⨯ volts = watts. 3 ⨯ 110 = 330 watts. 2. Single-Phase AC Amps to Watts. If you need calculations for single phase devices, then real power in watts will be given in terms of a power factor (PF 8Amps to Watts Conversion. As can be concluded from the formulas, in order to convert the units the voltage must be known, too. Supposed the PF is 0.5, and assumed the voltage is 110 V, we obtain these result: DC: P = 8 A × 110 V = 880 W. AC, Single Phase: P = 8 A × 0.5 × 110 V AC2= 440 W. AC, Three Phase, Line to Line Voltage: AC2P = 8 A 63 Amps to Watts Conversion. As can be concluded from the formulas, in order to convert the units the voltage must be known, too. Supposed the PF is 0.5, and assumed the voltage is 110 V, we obtain these result: AC, Three Phase, Line to Line Voltage: AC2P = 6.3 A × √ 3 × 0.5 × 110 V = 600.16 W. Answer To find the power (watts) when you know the voltage (volts) and current (amps), use the formula: Watts (W) = Volts (V) × Current (I) With a voltage of 220V and the current, you can calculate the power in watts. Watts to Volts Converter: Effortlessly Convert Between Watts and Volts with a Handy Metric Conversion Table. AC Three Phase, Line to Line Voltage: AC2P = 5.7 A × √ 3 × 0.5 × 110 V = 543 W. AC, Three Phase, Line to Neutral Voltage: P = 5.7 A × 3 × 0.5 × 110 V = 940.5 W. In place of employing the formulas, utilize our amps to watts converter. Enter, for instance, 5.7 for the current in amps, and note that in any case your voltage in volts is Ampsto Watts Formula. The following equation can be used to convert the total number of amps into the total number of watts. In other words the total current to total power. P = I * V P = I ∗ V. Where P is power in watts. I is the current in amps. V is the voltage in volts. Thereal power in watts is the power that performs work or generates heat. Power in watts is the rate at which energy is consumed (or generated). One watt is one joule (energy) per second (1 W = 1 YD4U.