Use this classical-physics calculation for a transparent first-pass result when the variables, reference frame, signs, and SI units match the stated ideal model.

Work (J)

Work in joules.

Time (s)

Elapsed time in seconds; must be greater than zero.

Compute average power as work done divided by elapsed time (P = W/t). The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Power (W)

The resulting power returned as a number.

• Point masses, constant acceleration, rigid bodies, uniform fields, negligible drag, and lossless transfers are common simplifying assumptions. Relativistic, quantum, rotational, dissipative, and uncertainty effects may require a fuller model.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Draw a free-body or energy diagram, check dimensions and limiting cases, retain signs and vectors, and compare consequential results with measurement or simulation.

• Average Speed Calculator

  Calculate average speed from total distance and elapsed time.

• Impulse Calculator

  Compute impulse as constant force multiplied by the elapsed time interval (J = F·Δt).

• Centripetal Force Calculator

  Compute centripetal force as mass times squared speed divided by the circular path radius (F = m·v²/r).