Wire is sized by the amperage that it is allowed to legally carry. To answer this question the amperage that you need at the garage must be stated. Also the distance to the garage must be stated. With this information the calculation can be made.
You need to know amps to answer this... Amps x Volts=watts
A "square foot" is a unit of area measurement equal to a square measuring one foot on each side. 1 Square Foot = 0.0929 square meters. Abbrev.: ft2, sq.ft, SqFt. To calculate the answer you need to know the exact length and width of your garage. Square footage of gargares vares. The garage for my home(2 car garage is is 21' long X 21'wide house was built 1956.
At what voltage? When you know the voltage then, to get the amps those kilovolt-amps contain, you simply divide the kilovolt-amps by the voltage.
The number of automotive amps a 30-foot strand of copper wire can carry depends on the gauge (thickness) of the wire. For example, a 30-foot strand of 10-gauge copper wire can typically carry up to 40-50 amps for automotive use, while a 30-foot strand of 12-gauge wire might be limited to around 25-30 amps. It's important to consult wire ampacity tables and consider factors like temperature and voltage drop to ensure safe and effective performance.
Need to know the voltage. Watts = Amps x Volts
To calculate the number of amps, you need to know the voltage of the circuit. Using the formula Amps = Watts / Volts, if the voltage is 120V, then 9.8kW at 120V would be approximately 81.67 amps.
Amps are related to voltage in the following equation: Watts = Volts * Amps; so in order to answer your question, one would need to know the wattage.
You need to mention the wattage of the fan to know the current.
They are not the same you need to know the voltage as well.
Amps are not directly convertible to horse power, which is a measure of power. Power is current times voltage. Therefore on a 240 v supply, 40 amps equals 9600 watts. One horse power is 746 watts.
To convert amps to watts, you need to know the voltage of the circuit. The formula to calculate watts is: Watts = Amps x Volts. Multiply the current in amps by the voltage in volts to get the power in watts.
You would also need to know the current in amps. The formula you need is this: P = I V Power (in watts) = current (in amps) x voltage (in volts)