To find the engine horsepower of a vehicle please use our Engine Horsepower Calculator. This calculator will help you estimate the potential of an engine. Buy online or Call 800-BUY-MYHP Calculators. Horsepower is a way to measure the power output of an engine or motor. Click on "Horsepower", enter the torque and rpm, click on "Calculate" and the answer is 361.77 horsepower. Boost Required for "X" Horsepower Calculator Horsepower is related to airflow and airflow is limited by the pumping capacity of a given engine displacement . Given a certain engine displacement and certain other factors you can calculate how much boost will be required to achieve a stated level of horsepower. Estimating engine power. You can also multiply cubic inches by 0.016387 to get the displacement in liters. Roll your pointer to the left of the table to see typical values. You might also be interested in our engine horsepower and engine torque calculators. Horsepower Calculator. Horsepower is a measurement of power, or the rate at which work is done. This 1/4 mile calculator uses the rear wheel horsepower instead of flywheel horsepower to determine the times and speed of the run. You can practice using this calculator with these examples: 1) What is the horsepower when an engine is producing 475 foot pounds of torque at 4,000 rpm? Learn more about how horsepower affects performance, or explore hundreds of other calculators addressing topics such as math, finance, health, fitness, and more. There are different formulas to figure out the amount of horsepower your engine is making. Convert kW to kVA, kVA to kW, voltage, kW to HP, and more to assist with generator sizing and electrical specifications required for your genset. Power Calculators for quick electrical generator power consumption, sizing, and unit conversion. Anywhere, anytime, any stage of life From education solutions to high-end professional tools, count on HP Calculators. Shop Online. To get the displacement in liters, use a cubic inches to liters conversion calculator. From education solutions to high-end professional tools check out the scientific, graphic and financial HP Calculators. Introducing HP Prime Graphing Calculator. This calculator can be used to compute horsepower according to its definition and to convert between different power units. This free engine horsepower calculator estimates vehicle engine horsepower using two different methods, the elapsed time method and the trap-speed method. For this calculator, you have the option to use the Elapsed Time Method, the Trap Speed Method, or the RPM & Torque Method . 2) An engine producing 320 horsepower at 5,000 rpm is producing how much torque? Estimate horsepower output from any engine type (4-stroke, 2-stroke, any fuel type, turbo, blower, Wankel, etc.).