Watts is a unit of energy that measures power conversion. If you can calculate the "watts per square foot," it will permit you to estimate the average electric power usage for things such as lighting, air-conditioning and other electric equipment in a building or a room. It's also a way...
To calculate amps to watts, you can use the formula: watts = amps x volts. How many amps are in 20 amps? At 120V, 20 amps is equivalent to 2400 watts. At 240V, it would be equivalent to 4800 watts. The wattage will vary depending on the voltage of the circuit. The basic formula ...
How to calculate the load current of any device.We start with knowing wattage (W) and voltage (V), and we’ll be able to calculate how many amps (A) does such a device needs to run. If you can calculate the amp draw (or load current), you can use the Battery Life Calculator. B...
watt-hours, considers the light source's total power output. Lux-hours, however, describes perceived luminous intensity, in terms of how much light the human eye observes. Many calculations specify a direct correlation between the two, assuming light's wavelength to ...
So, if you have a 60W bulb and you’re trying to calculate how many watts your bulb uses in 24 hours, your equation would read 60 watts x 24 hours = 1440 watt-hours. Or, to use the abbreviated measurement, the answer would be 1440Wh. ...
To calculate the power required for LED strip lights, you need to know the wattage per meter of your LED strip. Multiply the W/m value by the length of the LED strip light to get the total theoretical wattage. You can also use online calculators to determine the LED wattage for LED str...
If you know the voltage and amperage of a device, you can calculate ohms using the formula: Resistance (Ω) = Voltage (V) / Current (I) Here’s the fridge example: 240V / 5A = 48Ω If you’re feeling adventurous and have a device’s wattage and amperage, you can alsocalculate the...
You can calculate your estimated annual solar energy production by multiplying your solar panel's wattage by your production ratio. This means a 400-watt panel in California will produce about 600 kWh in a year, or about 1.6 kWh daily. That's enough energy to power some small appliances with...
To find the amperage of a current based on the number of millivolts, you will need to know the number of watts produced by the current. Once you know the number of millivolts and watts, you can use the basic power conversion formula "Watts = Volts x Amps
Would you like to learn how to calculate lighting? If so, here’s an A to Z guide on everything you need to know about how lighting is calculated.