Amps to Horsepower?

A unit of horsepower is defined as 745.7 watts or 33,000 foot-pounds per minute.

So a toaster oven or spot curing device could be said (for a small business permit or power bill, let's say) to have more than 1/2 horsepower if it runs at 14 Amps? In other words an appliance that does not have a motor can still be considered to be running at X amount of horsepower?

My toaster actually does have a motor.

I don't think you need to worry about horsepower for a spot curing device. Voltage , yes...horsepower , no.

The power expended by 14 amps at the US standard 110 volts =

14A(110V) = 1540 watts

Now, 1 horsepower = 550 foot-pounds per second. Let's convert this to watts. We convert feet to meters and pounds to Newtons to get this in metric units.

1 ft = 12 in = 12 in multiplied by 2.54 cm per in = 30.48 cm = .3048 m.

An object weighing one pound (English units) has a mass of 0.4536 kg.
The Earth pulls on this with a force of F = mg = .4536 Kg(9.807 m/s^2) = 4.448 N.

So, 1 hp = 550 fp/s = 550 fp/s (.3048 m/ft) (4.448 N/lb) = 745.7 N-m/s.

But a Newton-meter per second is a watt. Therefore, the device in question expends 1540 watts / 745.7 watts per horsepower = 2.07 horsepower.

Sure. One horsepower is simply a unit of power like a watt.