- #Amp to volt conversion calculator how to#
- #Amp to volt conversion calculator full#
- #Amp to volt conversion calculator portable#
This is the total watts being used if all your devices were running at peak power simultaneously.įor instance, let's say you plan to run a 200 watt fridge and a 75 watt fan off your inverter. If you know the wattage of all your devices, you can sum them together to get your system's total power draw. Knowing the wattage of your devices helps you do three main things when it comes to DIY solar power: During a cooling cycle, a fridge is using much more energy than when it's simply insulating. Fridges, for instance, enter a cooling cycle when the internal temperature gets too high. In other words, the device may not be always using that much current. It's important to know that the current rating listed on a device is usually its max current rating. So, in this example, your 12 volt fridge uses a max of 60 watts.
To estimate its max power consumption in watts, you multiply its voltage by its amperage. You look at its product specifications and see that it has a max current of 5 amps.
#Amp to volt conversion calculator portable#
Knowing a devices wattage is necessary for estimating how much power it's using at a given moment, as well as how much energy it consumes overall.įor example, let's say you have this portable 12 volt fridge. It turns out your panel is a 100 watt solar panel.
#Amp to volt conversion calculator full#
To calculate the watts produced by the panel in full sun, you would multiply volts times amps. Let's assume you have own the following solar panel that is rated at 18.6 volts and 5.38 amps.
#Amp to volt conversion calculator how to#
Here's a simple example illustrating how to convert volts to watts. The conversion formula remains the same.Īlternate abbreviation: P = V × I Example Occasionally, you may also see watts abbreviated as P instead of W and amps abbreviated as I instead of A. To convert volts to watts, simply multiply volts times amps. 5 Volts to Watts Volts (V)Ĭonverting volts to watts is easy - you just need to know the current in amps. So 10 amps corresponds to a 2200 watt (2.2 KW) device.īecause a home's main service is 240 volts, the math looks like this: 240 volts x 100 amps = 24,000 watts.Here are some tables converting common AC and DC voltages to watts at various levels of current. The current is mostly the power divided by the voltage = P/220 in amps. You cannot specify both current and voltage at the same time. With a better understanding of your RV's electrical system and some simple electrical formulas you can live comfortably on 30 amps with little to no problems. The key to living on 30 amps is to not exceed the amperage of an individual circuit, and to not exceed a total of 30 amps at any given time. A 50 amp plug has four prongs – two 120 volt hot wires, a neutral wire and a ground wire – that supply two separate 50 amp, 120 volt feeds.Ī 30-amp outlet supplies 3,600 watts (30 amps multiplied by 120 volts). Where P is the power in Watts, I is the current in Amps and V is the voltage in Volts.Įquivalent Volts and Amps Measurements for Various Power Ratingsġ2 Volt, you have a 12 Volt power supply that delivers 1 Amp of current.Ī 30 amp plug has three prongs – a 120 volt hot wire, a neutral wire and a ground wire – and is generally used on RVs with lower load requirements. For example, if you have a power of 10W running at 5V, the current is 10W / 5V = 2A. The current I in amps (A) is equal to the voltage V in volts (V) divided by the resistance R in ohms (Ω): The current I in amps (A) is equal to the power P in watts (W) divided by the voltage V in volts (V): The voltage V in volts (V) is equal to the square root of the power P in watts (W) times the resistance R in ohms (Ω): To calculate amps, divide the voltage by the resistance in ohms. Ohm’s Law provides an alternate formula to find volts if amps and the electrical resistance is known. You can calculate Current from Voltage either providing the Power, or Resistance values.
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