Power Converter
Convert horsepower, kilowatts, megawatts, BTU/hr, and more. Compare real-world power scales dynamically.
Power Calculator
Converted Result
13.410221 hp
Real-World Scale Comparisons
Wondering what 10 kW is equivalent to? Here is how that energy compares in everyday life:
Smartphone Chargers
Equivalent running smartphone fast-chargers (15W each)
Household Hairdryers
Equivalent running professional hairdryers (1,500W each)
Standard Car Engines
Equivalent family sedan engines (approx. 150kW / 201hp each)
Household Power Consumption
Equivalent homes powered at typical peak draw (5kW each)
Equivalents Table
Watt (W)
10,000 W
Kilowatt (kW)
10 kW
Megawatt (MW)
0.01 MW
Mechanical Horsepower (hp)
13.410221 hp
Metric Horsepower (ps / ch)
13.596216 ps
BTU/hour (BTU/hr)
34,121.416351 BTU
Calorie per second (cal/s)
2,390.057361 cal_s
Foot-pound per second (ft-lb/s)
7,375.621495 ft_lb_s
What is power and how is it calculated?
In physics, power is defined as the rate at which work is done or energy is transferred over time. While energy tells us how much total work can be done, power tells us how fast that work gets completed. The standard equation is P = W/t (Power = Work / Time). In practical terms, a high-power machine can perform the same action as a low-power machine, but in a fraction of the time.
Understanding the metric and imperial scales
The standard SI unit of power is the Watt (W), named in honor of James Watt. One watt equals one Joule of energy expended per second. For electric grids and home appliances, we regularly use Kilowatts (kW) or Megawatts (MW). When we look at engines, we often talk about Horsepower (hp). However, there are two common definitions: mechanical horsepower (mostly used in the US and UK, about 745.7 watts) and metric horsepower (used in Continental Europe, about 735.5 watts). These two scales emerged from slightly different ways of measuring how much force a horse could lift over a set duration.
Thermodynamic power: BTU and Calories
When you purchase an air conditioner or a heater, you will notice the output rating is written in BTU/hr (British Thermal Units per hour). This measures how much thermal energy the appliance can move. Similarly, Calories per second (cal/s) measures thermal power in metric terms. Converting between these units allows you to compare the mechanical performance of an engine, the electrical draw of a heater, and the raw thermal capacity of a cooling unit side-by-side.