Calculate Power, Force, Distance and Time

Online calculator and formulas for calculating power, force, distance and time

Power Calculator

Calculate mechanical power

Calculates the relationship between Power (P), Force (F), Distance (s) and Time (t). Mechanical power is work per unit time.

Unit Seconds
Result
Power:
Force:
Distance:
Time:

Example Calculation

Example: Crane lifts load
Problem:

A crane lifts a load of 1000 kg (equivalent to 9810 N) over a height of 10 m in 20 seconds. What mechanical power is required?

Given:
  • Force F = 9810 N (weight force of the load)
  • Distance s = 10 m (lifting height)
  • Time t = 20 s
  • Find: Power P
Solution:
\[P = \frac{F \times s}{t}\]
\[P = \frac{9810 \text{ N} \times 10 \text{ m}}{20 \text{ s}}\]
\[P = \frac{98100 \text{ Nm}}{20 \text{ s}} = 4905 \text{ W} = 4.905 \text{ kW}\]
Practical Applications
Mechanical engineering: Cranes, elevators, conveyor belts, presses
Automotive engineering: Engine power, acceleration, hill climbing
Sports science: Training power, energy consumption
Time Input Tips
Flexible time input:
  • 2:14'10 → 2 h, 14 min, 10 s
  • 2:0 → 2 h
  • 2:14 → 2 h, 14 min
  • 2:00'18 → 2 h, 18 s
  • 2'18 → 2 min, 18 s
  • 45 → 45 s

Formulas for power, force, distance and time

The mechanical power describes how fast work is performed. The units of measurement are Newton (N) for force, Watt (W) for power, Meter (m) for distance and Seconds (s) for time.

Calculate power

Basic formula for mechanical power from force, distance and time.

\[\displaystyle P = \frac{F \cdot s}{t}\]
Power = Work per time
Calculate force

Rearrangement to calculate the required force.

\[\displaystyle F = \frac{P \cdot t}{s}\]
For given power and speed
Calculate distance

Rearrangement to calculate the distance traveled.

\[\displaystyle s = \frac{P \cdot t}{F}\]
Distance with constant force and power
Calculate time

Rearrangement to calculate the required time.

\[\displaystyle t = \frac{F \cdot s}{P}\]
Duration for a specific work
Important Notes
  • Mechanical power is work per unit time: P = W/t
  • Work is the product of force and distance: W = F × s
  • 1 Watt = 1 Joule/second = 1 Nm/s
  • Time can be entered in various formats (s, min:s, h:min's)

Detailed description of mechanical power

Physical Fundamentals

This function calculates the relationship between power, force, distance and time. Mechanical power describes how fast mechanical work is performed.

Usage Instructions

To calculate, select which value should be calculated using the radio buttons. Then enter the required values and click the 'Calculate' button. Time can be flexibly entered in various formats.

Application Areas

Mechanical Engineering

Cranes, elevators, conveyor belts, presses, hydraulic systems. Dimensioning of drives and motors.

Automotive Engineering

Engine power, acceleration capability, hill climbing performance. Calculation of driving performance and energy consumption.

Sports Science

Training power, energy consumption, performance diagnostics. Analysis of athletic performance and endurance.

Understanding Power Comparisons

Mechanical power is present everywhere in everyday life. Here are some practical comparisons:

Human

Continuous power: ~75 W
Peak power: ~400 W
Climbing stairs: ~200 W

Vehicles

E-bike motor: ~250 W
Small car: ~50 kW
Truck: ~300 kW

Machines

Home elevator: ~3 kW
Construction crane: ~50 kW
Ship crane: ~1000 kW

Insight: The required power increases significantly with the mass to be moved and the desired speed!


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