The Power calculator computes the power based on the change in(ΔE) and the time duration (Δt).
INSTRUCTIONS: Choose units and enter the following:
Power (P): The calculator returns the power in watts (W). However, this can be converted to compatible units via the pull-down menu.
The Math / Science
The formula for Power is:
P = ΔE / ΔT
Power is most commonly measured in watts (W). One watt is equal to one joule per second (1 W = 1 J / 1 s). Power is also measured in horsepower (hp) where 1 horsepower equals 745.7 watts. Power is also measured in heat energy transfer as BTUs per hour (BTU/h).