Simple horsepower calculator Engine Horsepower Calculator Overview This advanced calculator helps automotive engineers, mechanics, and enthusiasts accurately determine engine horsepower using multiple calculation methods. -lbs. You can calculate a PWR in four simple steps: May 29, 2025 · Calculate horsepower or torque instantly with our powerful HP TQ calculator. Imagine a horse pulling coal out of a mine. But the benefits of the Quartermile Calculator don’t stop there. Input weight and quarter-mile performance to assess power output. Fast, simple, and accurate. A horse exerting 1 horsepower can raise: 330 lbs. HP is at Flywheel A Horsepower Calculator is a powerful tool for measuring engine performance across different industries. Online Pump Calculator - Imperial units The calculator below can used to calculate the hydraulic and shaft power of a pump using Imperial units: Need help with engine math? Use our Horsepower Calculator. Calculate your engine's horsepower using quarter mile time, trap speed, or RPM and torque with our free calculator. Apr 29, 2022 · Learn about the English unit of measurement horsepower (hp), including its origins, how it's calculated and converted into wattage, and applications. Apr 7, 2023 · Engine horsepower calculator @ flywheel using acceleration time, weight, coast down time & the gear ratio. It also accounts for drivetrain losses and altitude so you can compare crank vs wheel horsepower with realistic correction factors. It is at a Use our Motor Torque Calculator to quickly determine torque for DC, AC, and 3-phase motors. Disclaimer: The calculators and tables provided in this section are intended for reference They use the accepted formulas used by most engine builders. Simply input the engine specifications to get an estimated horsepower value. Compression Calculator Get accurate compression without the guesswork! Get your engine's optimal compression ratio and total displacement in no time flat! Just complete your engine setup, click calculate, and you’re on your way to maximum performance. Find exact power equivalents for engines and machinery in seconds. What is Horsepower Calculator At Horsepower Calculator, we provide accurate and intuitive tools to measure engine power and performance. To use the calculator, input the following details: Engine RPMs: The speed at which your engine is running, measured in revolutions per minute. In simple words, it can be You no longer need expensive and overly-complicated software to calculate your engine's peak horsepower. Free electric motor calculator for AC and DC motors. *Note: Assuming a 20% drive train loss. Oct 12, 2024 · Convert horsepower to current using the HP to Amps Calculator. of work in 1 minute. Oct 4, 2025 · Welcome to the Horsepower Percentage Calculator! This tool helps you measure changes and ratios in horsepower quickly and accurately. Oct 28, 2025 · Convert horsepower to watts quickly with our simple HP to W calculator. Need quick and accurate hydraulic calculations? Use our fluid power calculators to simplify your projects. If we at GoFastMath. Purpose: It is used in electrical engineering to determine the apparent power requirements for motors and equipment based on their horsepower This calculator estimates your quarter mile elapsed time (ET) when given the weight of the car and flywheel or wheel horsepower. Use this free calculator to see what your engine is capable of. A Horsepower Calculator is a simple online tool that helps you quickly estimate the engine power output using torque and engine speed (RPM). Works for DC, AC, 12V, 115V, and 240V systems. No dyno required! *Note: Assuming a 20% drive train loss. 0-60 MPH Time Calculator By AssassinRacing. Torque: The engine’s torque measured in pound-feet (lb-ft). The most common method involves simple formulas that relate torque, RPM (revolutions per minute), and constants. The Horsepower Calculator turns torque, RPM, vehicle weight, and quarter-mile ET into horsepower estimates. Currently this calculator works for naturally aspirated engines (no turbos, no superchargers, no nitrous) running on pump gas. Understanding the Formula The Horsepower Per Dollar Calculator is based on two simple Calculate the compression ratio of an engine using our calculator. Importance of Quarter-Mile Calculation Calculating quarter-mile performance is crucial for: Drag Racing: Predicting race outcomes and optimizing vehicle Tractive Effort is a measure of the force that a locomotive can apply to the train it is pulling. Great for cars, bikes, and tuning. com Calculate the theoretical 0-60 Time for a given application based on the Vehicle Horsepower (at the flywheel), Vehicle Weight (in pounds), Drive Type, and Transmission Type. It will also allow you to calculate the engine displacement in Liters and Cubic Inches. ). See Below for explanations of the fields required. We would like to show you a description here but the site won’t allow us. Fast, accurate, and simple for students, professionals, and everyone. The Horsepower Calculator is an easy-to-use tool designed to help users calculate engine power output based on force, distance, and time. Drag Race Dyno ~ This calculator will allow you to figure out your horsepower based on your ET times in either the 1/4 mile or 1/8 mile. For steam locomotives, Tractive Effort was usually the limitting factor in the size of the train it could pull. This guide explains the steps to effectively calculate engine horsepower. With an Engine Horsepower Calculator, you can accurately compute the power output of an engine using simple input parameters like torque and RPM. NEXT Compression 261122 Instant power-to-weight ratio calculator. This calculator helps you calculate the horsepower based on torque and speed values. Calculate horsepower, torque, and engine displacement instantly with our easy-to-use engine calculator. Unleash the horsepower within your pumps with the Pump Horsepower Calculator! Calculate the muscle needed to move fluids like a pro! Oct 12, 2024 · Quickly find pump horsepower with our Pump Horsepower Calculator using flow rate and pressure. Please note that these horsepower calculations are based on a standard reciprocating compressor. The Horsepower to Amps Calculator is a straightforward tool designed to make these calculations simple and accessible. -OR- 33 lbs. Mobile friendly. Unlike Static Understanding your engine’s power is crucial for vehicle performance, tuning, and maintenance. Tractive Effort is a quantity determined almost entirely from the locomotive's geometry. Oct 4, 2025 · All you need to do is enter the total horsepower and the total cost of the vehicle or modification. Free online horsepower calculator with multiple methods to determine engine power - torque and RPM, 0-60 time, or wheel horsepower from dyno testing. Use our free online Horsepower Calculator to estimate engine power using torque and RPM. Power to weight ratio is the primary factor, but it Oct 19, 2025 · Easily estimate horsepower gains with this boost horsepower calculator. Plus, learn the formula to convert real power to apparent power. Use our free Horsepower (HP) Calculator to easily compute engine power and performance. An 11% driveline loss is assumed for Wheel HP. in 1 minute. Historical Background Convert horsepower to kVA using our HP to kVA calculator. Easy, accurate, and perfect for tuners, engineers, and car enthusiasts. Calculate motor power, current, efficiency, torque, and performance characteristics. This calculator will calculate both Static and Dynamic compression ratio Compression Ratio is the ratio of an engine's cylinder volume vs. p. com see a demand for this horsepower calculator to also work for boosted engines Estimate horsepower output from any engine type (4-stroke, 2-stroke, any fuel type, turbo, blower, Wankel, etc. Horsepower Calculator is a free online tool that displays the horsepower for the given speed and torque. Transform your torque and RPM data into horsepower estimates using our easy-to-use Horsepower Calculator today. Pump Horsepower Calculator MEPBase Tool Convert pump flow and head into kW and horsepower (HP). It supports multiple unit conversions, making it ideal for automobile enthusiasts, engineers, mechanics, and students who need quick and accurate horsepower measurements. You can start using it right away or keep reading to learn about the formulas, parameters, and a step-by-step example. This simple yet powerful tool helps enthusiasts, mechanics, and professionals make informed decisions about vehicle performance. Use the horsepower calculator to estimate the current engine horsepower of your car. Convert volts to HP with simple formulas. Enter horsepower and vehicle weight in lb or kg and get hp per lb or hp per kg. The 1/4 Mile Calculator is perfect for drag racers looking to remain competitive and improve their vehicle’s performance. Calculate amps, hp and kVA for electrical motors. The horsepower calculator is a simple yet powerful tool that allows you to determine the power output of an engine based on different input parameters. Definition and Description Horsepower (hp) is a unit of measurement that expresses the rate at which work is done. Cylinder Stroke: The Easy Volts to Horsepower Calculator. Simple and precise. Whether you are a car enthusiast, a mechanic, or an engineer, you can use this calculator to analyze engine performance and compare different vehicles. Estimate horsepower output from any engine type (4-stroke, 2-stroke, any fuel type, turbo, blower, Wankel, etc. This simple Horsepower calculator lets you easily determine the HP of air conditioner that you need. Enter key details and get accurate results. Oct 3, 2024 · Find More Calculator ☟ Pump power, expressed in horsepower (HP), is a crucial metric for evaluating the performance and efficiency of pump systems in transferring fluids across various distances and elevations. In this comprehensive guide, we will explore the importance of engine horsepower, the formulas used for calculation, and how an Engine Horsepower Calculator can help you optimize performance. Calculate engine horsepower easily with Toolerz's free Horsepower Calculator. Use this horsepower calculator to calculate peak engine horsepower and peak power RPM. Calculate bore size, velocity and power. See how different boost pressures affect the engine’s power and compare setups. A 17% driveline loss is assumed for flywheel HP. 1/4 ET/SPEED/HP/KW Calculator Weight is as the car sits on the line: driver and gas in it. Basic Formula for Horsepower Calculation Use the basic formula Simple HP calculations for you to estimate your Vette's HP Convert power to hp and weight to lb Calculate the ET and final speed using Hale's, Huntington's, and Fox's formulas Select the desired units for ET and final speed, then view the results 3. Relevant to fields like mechanical and automotive engineering, it also touches upon real-world applications and the historical contributors to this concept. Cylinder Bore: The diameter of the cylinders in inches. Calculate horsepower, watts, and kilowatts using torque, torque unit, and engine speed (RPM) with this Horsepower Calculator. It's based on the Track Length, Finish Speed and Vehicle Weight. Compression Ratio and Displacement Calculator This simple tool allows you to calculate the STATIC compression ratio of an engine. Calculate the horsepower of an engine using one of three different methods, plus see the formulas and learn to do the calculations yourself. 1 This app shows power, weight and power to weight ratio Overview Updates (1) Reviews (24) Version History This super simple app will show you power in PS and horsepower, vehicle weight, and power to weight ratio Works poorly with electric vehicles :с thanks for the help - NS Calculate horsepower easily from watts, torque, or RPM using our online Horsepower Calculator. It was originally defined to allow the output of steam engines to be measured and compared with the power output of draft horses. Horsepower (hp or HP) is the name of several non-SI units of power (watt). Calculate horsepower with our Free Online calculator. This tool provides you with results in horsepower units as well as in watts and other power units. Mar 17, 2020 · The equation to calculate horsepower is simple. What Is Horsepower? When it comes to horsepower definition, it can be defined as a unit that is used for the measurement of power. This tutorial explains the concept of engine horsepower in the field of physics, how it's calculated, and the associated formulas. Fast, clear, and accurate. 5 for metric: HP = watts / 745. Check hydraulic power, motor input power and minimum motor size for chilled water, booster, transfer and fire pumps. [Math Processing Error] P is the mean effective pressure in pounds per square inch (psi). Calculate Engine Horsepower with our Free Online tool. Fast, accurate, and simple tool for students, professionals, and everyone. Use this simple science hydraulic pumps horsepower calculator to calculate horsepower. HiPo Parts is not responsible for errors made based on the use of these calculators. Horsepower Calculator Horsepower is a measurement of power, or the rate at which work is done. With multiple input options, precise calculations, and user-friendly features, it offers a reliable way to estimate horsepower quickly. These values are estimated only and are based on 0. 1 hp represents the amount of power it takes to perform 33,000 ft. com. Assumptions: This calculator has been designed around statistical averages based largely on sample data from Edmunds. Figure out the correct power output for any motor quickly. [Math Processing Error] L is the length of the stroke in feet (ft). Oct 3, 2024 · This calculator simplifies the complex calculations of horsepower, making it easier for automotive enthusiasts, engineers, and students to estimate the power output of vehicles and engines. Plus, learn the formulas to find the compression ratio. Click here to start. Calculate motor power and wattage with simple formulas for accurate results. It delves into the importance of vehicle weight and speed in these calculations. Although its original purpose was to compare the output of steam engines with the power of horses (hence its name), it has since been adopted as a unit of measurement for all sorts of engines used to power things such as vehicles, lawn mowers, boats, chainsaws, and This power-to-weight ratio calculator provides a quick and easy way to determine the power-to-weight ratio (PWR) of any vehicle. Whether you're evaluating vehicle specifications, comparing motor outputs, or designing mechanical systems, our calculator delivers instant horsepower conversions and calculations without complex equations. Whether you’re comparing before-and-after tuning results or checking drivetrain efficiency, this calculator makes performance evaluation simple. Go to Horsepower to Torque Calculator Use our horsepower calculator to estimate engine power from torque, speed, and other inputs. Our calculator works on the principles of horsepower formula and to convert between different units. Static Compression Ratio numbers are the ones you hear thrown around the most ("10:1 compression"), and it takes into consideration the full sweep volume of the cylinder in regard to its range of crankshaft stroke. Aug 31, 2022 · Simple power, weight, ratio 1. Engine Horsepower Estimator: Estimate Engine Horsepower Estimate the horsepower of an engine based on its bore, stroke, number of cylinders, and RPM with this Engine Horsepower Estimator. The calculator is simple to use—just input your vehicle’s weight and horsepower and estimate your vehicle’s ET and trap speed. Simple electrical calculator helps to calculate the horsepower for dc (direct current) motor. Use Horsepower Calculator to estimate engine power based on torque and RPM, helping you evaluate vehicle performance and mechanical efficiency. Helps automotive enthusiasts and professionals understand and compare engine performance. How is it What is the Horsepower to kVA Calculator? Definition: This calculator converts real power in horsepower (HP) to apparent power in kilovolt-amps (kVA), accounting for motor efficiency and power factor. Engine HP Estimator Calculator This calculator estimates the horsepower of an engine based on several parameters. This saves you time from lengthy manual calculations by providing instant results as you input your values. This calculator can be used to compute horsepower according to its definition and to convert between different power units. Mar 8, 2021 · Online hydraulic pumps horsepower calculation. 7 for mechanical or 735. Please consult NEXT Compression for screw compressor power calculations. Convert amps to horsepower using an easy calculator and learn the formulas to convert electrical power in horsepower yourself. The calculators below can be used to calculate electric motor amps, horsepower and 3-phase kVa. You can use our horsepower calculator to try it out yourself. With our Horsepower Calculator, you can easily calculate the horsepower of any engine by entering two key values: torque and RPM (revolutions per minute). m. . Back to Custom Performance Racing Compression Calculator Calculate HP from Trap Speed Vehicle weight in pounds (including driver) lbs Trap speed at end of 1/4 mi in m. The data provided is only as reliable and the inputs used. of coal 1,000 ft. Ideal for car enthusiasts and mechanics! This horsepower calculator will use different horsepower calculation methods to estimate how much power your vehicle is producing. Screw compressor values will be higher with higher compression ratios. Get instant results with multiple measurement units supported. Therefore, Tractive Effort was more important than HorsePower for steam locomotives. Designed for automotive enthusiasts, engineers, and watts = force * distance / time To get the watts in horsepower divide it by 745. its combustion chamber size. To find the engine horsepower of a vehicle, please use our Engine Horsepower Calculator. Horsepower (HP) is a unit of measurement that indicates the power output of an engine and is critical for understanding vehicle performance characteristics. Aug 24, 2022 · Use this pump horsepower calculator to determine any pump's hydraulic and shaft power. It provides insights into the energy requirements for operating the pump under specific conditions. There are two simple horsepower formulas that can estimate the on-the-pavement horsepower for a given car. 1/4 & 1/8 Mile Elapsed Time CalculatorThis calculator estimates your 60 foot, eighth and quarter mile elapsed times and trap speed when given the weight of the car and flywheel or wheel horsepower. 7 While this formula is simple enough to calculate, I made this horsepower calculator to make it easier to get horsepower in various representations based on different known force units. Whether you’re evaluating a car engine, an industrial motor, or a marine engine, understanding horsepower helps in making informed decisions. See my Free Android Drag Racing Calculator App in the Google Play Store Use this horsepower calculator to calculate peak engine horsepower and peak power RPM. This calculator takes into account the horsepower, voltage, efficiency, and power factor of the system, providing users with the amps needed for their electrical calculations. Vehicle's engine horsepower with our precise calculator. Input torque and RPM to determine your engine's power output. Convert between mechanical, electrical, and metric HP for accurate results. Perfect for automotive enthusiasts, engineers, and mechanics. The calculator instantly reveals how efficiently your money translates into performance. The Horsepower Calculator is an essential tool for anyone looking to understand and analyze engine power. of coal 100 ft. h. Use the Engine Horsepower Calculator to estimate the power of your vehicle's engine. Any calculations should be double checked before making any engine building and design decisions. Convert horsepower to amps using our electrical conversion calculator, and see the formulas used to convert electrical power to current. Essential for engineers and maintenance work. Choose to calculate horsepower or torque Horse Power Torque (ft·lbs) Enter the following values to calculate horsepower Torque in foot pounds (ft·lbs) Engine RPM Horsepower to Torque Calculator This calculator converts power in horsepower to torque in Newton meters, considering the angular velocity. Horsepower Calculator Horsepower is a unit of measurement of power developed by engineer James Watt in the late 18th century. 6 SG gas and 60ºF (15ºC) inlet temperature and 2500' (762m) above sea level. This free engine horsepower calculator estimates vehicle engine horsepower using two different methods: the elapsed time method and the trap-speed method. A quick, simple, and precise online tool. Easily calculate horsepower with accurate results for engine power and performance using our Horsepower Calculator. Etc. Indicated Horsepower Formula Indicated Horsepower (IHP): [Math Processing Error] I H P = P L A N n 33000 c Where: [Math Processing Error] I H P is the indicated horsepower in horsepower (hp). Provides a simple way to calculate engine horsepower using torque and RPM values. How to Calculate the Horsepower of an Engine Understanding the horsepower of an engine is crucial for gauging its efficiency and performance. rjjk irtnybc mqm kpshyd nvyhf gfiq ivs qpkug uomxjwjr exg juntg qsqkxnj nexun ccazs jtpws