10 Best Free Online Horsepower Calculator Websites

Here is a list of best free online horsepower calculator websites. Horsepower is a measurement of the rate at which work is done. Horsepower is mainly used to define the power of engines and motors. There are various variations of horsepower like metric horsepower, water horsepower, boiler horsepower, boiler horsepower, and more. Each horsepower variant requires different sets of input values to perform the calculation like Engine Horsepower requires Torque and Speed (RPM) as input, Water Horsepower requires Flow Rate and Total Head as input. If you also want to calculate different variations of horsepower, then check out these online horsepower calculator websites.

These websites allow users to quickly calculate the horsepower of engines and pumps. To do that, users just need to enter the required input values. According to the requirement, users can also specify the SI unit of both input parameters and output horsepower (HP, KWH, etc.). Most of these websites also show the horsepower calculation formula that they use to perform the calculation. To help out novice users, I have also included the steps of HP calculation in the description of each website.

These websites also offer additional tools like Flow Rate Calculator, Mean Depth Calculator, Physics Calculator, and more. Go through the list to know more about these websites.

My Favorite Online Horsepower Calculator Website:

calculator.net is my favorite website as it can calculate both Horsepower and Engine Horsepower with ease. Plus, it is quite simple to use.

You can also check out lists of best free Online Dot Pitch Calculator, Online Inflation Calculator, and Online Watt Calculator websites.

calculator.net

calculator.net is a free online horsepower calculator website. Using this website, users can calculate horsepower using Force (newton, kilonewton, and pound), Distance (meter, kilometer, mile), and Time (second, minute, hour, and day) parameters. After performing the calculation, it shows the horsepower in the watts unit. Now, follow the below steps to calculate horsepower online using this website.

How to calculate horsepower online using calculator.net:

Visit this website and open up the Horsepower Calculator.
After that, input the Force, Distance, and Time values and specify their SI units.
Next, hit the Calculate button to view the calculated horsepower in the watts unit.

Additional Features:

Engine Horsepower Calculator: This calculator uses Vehicle Weight and Time to finish quarter-mile values to find out the engine horsepower of a vehicle.
Calculators: This website also offers calculators associated with Finance, Math, and Fitness fields.

Final Thoughts:

It is an excellent online horsepower calculator website that can calculate the standard horsepower along with the engine horsepower of a vehicle.

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byjus.com

byjus.com is another free online horsepower calculator website. Through this website, users can calculate the Horse Power or HP using Torque and Speed (N) revolution per minute values. It also shows the formula that it uses to perform the calculation. It also shows steps to perform the HP calculation. Now, check out the below steps.

How to calculate horsepower of a vehicle online using byjus.com:

Start this website and enter the value of Torque.
Now, enter the Speed value in the form of revolution per minute.
Next, enter x in the Power/hp field.
Lastly, click on the Calculate ‘x’ button to start the calculation process.

Additional Features:

Free Online Calculators: This section offers multiple online calculators that users can use for free such as Chi-Square Calculator, Profit Calculator, Het Transfer Calculator, Cube Root Calculator, Profit Calculator, and more.

Final Thoughts:

It is another good online horsepower calculator website that uses the Torque and Speed values to calculate the horsepower of a vehicle.

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spicerparts.com

spicerparts.com is another free online horsepower calculator website. Through this website, users can calculate both the Horse Power and Torque of engines. To calculate the horsepower, users need to enter the Torque and Engine RPM values. On the other hand, it needs Horsepower and Engine RPM values to calculate the Torque of a vehicle. Now, follow the below steps.

How to calculate the horsepower of an engine online using specerparts.com:

Go to this website using the given link.
After that, choose the Calculate HorsePower option.
Now, enter the engine torque value in ft-lbs and Engine RPM values.
Lastly, click on the Calculate Results button to view the engine horsepower value.

Additional Features:

On this website, users can also gather information related to automotive parts such as Ring, Pinion, Steering Components, Spicer Ring, Semi Float Axles, and more.

Final Thoughts:

It is another good online horsepower calculator website that helps users find out the horsepower of an engine.

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omnicalculator.com

omnicalculator.com is a free online horsepower calculator website. This website offers many online calculators one of which is the Torque to HP calculator. This calculator is designed to find out the horsepower of a moving object or vehicle. To perform the calculation, it uses Torque and Speed (RPM of an engine) values. It can also show the calculated horsepower in multiple units such as mechanical horsepower, metric horsepower, electric horsepower, air horsepower, and boiler horsepower. Besides horsepower, it can also calculate power (in milliwatts, watts, kilowatts, etc., units). Now, follow the below steps.

How to calculate horsepower of a vehicle online using omicalculator.com:

Visit this website using the provided link.
After that, enter the Torque and Speed (RPM) values of an engine.
As soon as you enter the input parameter values, it calculates and shows the Power and Horse Power values.

Additional Features:

This website also offers online calculators associated with Ecology, Finance, Health, Maths, Physics, etc., fields.

Final Thoughts:

It is another good online horsepower calculator website that anyone can use to calculate both Power and Horsepower calculations.

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powertestdyno.com

powertestdyno.com is another free online horsepower calculator website. This website offers a simple horsepower calculator that uses the Engine Torque and Engine Speed (RPM) to calculate the horsepower. Unlike other similar websites, it offers Torque and Speed sliders that users need to move to specify their values. It also shows the formula that it uses to perform the calculation. According to the specified values, this calculator shows the final horsepower value.

How to calculate engine horsepower online using powertestdyno.com:

Visit this website using the given link.
After that, move the Torque and Speed sliders to specify their values.
Lastly, view the calculated horsepower under the Horsepower title.

Additional Features:

This website also offers multiple automotive and industrial machine measurement products such as engine dynamometers, hydraulic test stands, valve body dyno, and more.

Final Thoughts:

It is another capable yet simple to use online horsepower calculator website that anyone can use without much hassle.

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easycalculation.com

easycalculation.com is yet another free online horsepower calculator website. This website offers a Horsepower calculator tool that can find out the rotating horsepower of an engine. To find out the horsepower, users need to input Torque and Speed values. It also shows the horsepower calculation formula (HP= Torque*(Speed/5252)) that it uses to perform the calculation. Now, follow the below steps.

How to calculate engine horsepower online using easycalculation.com:

Visit this website and access the Horsepower Calculator.
Now, enter the Torque and Speed (RPM) values.
Next, hit the Calculate button to start the conversion process.

Additional Features:

This website comes with many additional online calculators, converters, formulas, charts, and currency converters.

Final Thoughts:

It is a simple online horsepower calculator website that helps users find out the rotating horsepower of an engine without much hassle.

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meracalculator.com

meracalculator.com is a free online calculator website that offers multiple Maths, Physics, Chemistry, and Graphics calculator. Under its Physics section, it offers a water horsepower calculator that helps users find out the exact horsepower they need to maintain a specific water discharge rate. Now, follow the below steps.

How to calculate water horsepower online using meracalculator.com:

Go to this website and open up the Water Horsepower calculator.
After that, enter the Flow Rate (gpm) and Total Head (H) values.
Lastly, click on the Calculate button to view the calculated horsepower.

Additional Features:

As mentioned earlier, it comes with multiple online calculators such as Mean Depth Calculator, Euler Numbers Calculator, Flow Rat Calculator, and more.

Final Thoughts:

It is another excellent online tool through which users can find out the water horsepower they need to maintain a certain water flow rate.

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calculaor.swifttutors.com

calculaor.swifttutors.com is a free online horsepower calculator website. Through this website, users can calculate the brake horsepower of an engine. The Brake Horsepower unit is used to measure the work done by engines. It also determines how fast it can propel a vehicle. To find out the brake horsepower, users need to enter the Torque and RPM values of an engine. It also highlights the formula that it uses to calculate the brake horsepower. Now, follow the below steps.

How to calculate brake horsepower online using calculator.swifttutors.com:

Visit this website and access the brake horsepower calculator.
Now, enter the Torque and RPM values of an engine.
Lastly, click on the Calculate button to view the calculated engine brake horsepower.

Additional Features:

This website also offers tools to calculate the Pump Efficiency, Linear Momentum, Electric Current, Horizontal Distance, Air Resistance, and more.

Final Thoughts:

It is a simple online break horsepower website that anyone can use to calculate the engine break horsepower.

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allmath.com

allmath.com is the next free online horsepower calculator website. Through this website, users can calculate the Water Horsepower, Pump Efficiency, Flow Rate, and Total Head values. This website basically helps users find out the horsepower they need to maintain a specific water flow. It also shows the formula that it uses to calculate the water horsepower. Now, check out the below steps.

How to calculate water horsepower online using allmath.com:

Visit this website and choose Water Horsepower from I want to Calculate menu.
After that, enter the Flow Rate, Total Head, and Pump Efficiency values.
Next, hit the Calculate button to start the calculation process.

Additional Features:

According to its name, this website contains multiple maths calculators such as Antilog Calculator, Arc length Converter, Average Velocity Calculator, Average Calculator, and more.

Final Thoughts:

It is another good and easy-to-use online horsepower calculator that anyone can use to calculate water horsepower.

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getcalc.com

getcalc.com is the last free online horsepower calculator website. Using this website, users can calculate the Mechanical Horsepower. To do that, it can either use the engine torque & speed or belt velocity & tension. It also keeps track of previous calculations that users can go through and repeat. Now, follow the below steps.

How to calculate mechanical horsepower online using getcalc.com:

Start this website using the provided link.
After that, choose Torque and RPM or Belt Velocity and Tension parameters.
Next, enter the values of selected parameters.
Lastly, click on the Enter button to view the calculated mechanical horsepower.

Additional Features:

On this website, users also get additional tools such as Basic Calculator, Scientific Calculator, Digital Numbers, Finance Calculators, Math Formulas, and more.