Two figures in, a clear answer out. The torque to hp calculator uses speed and torque to produce horse power and power, applying the standard relationship for this problem in the order the calculation actually needs it.
What Is the Torque to Hp Calculator?
The torque to hp calculator converts speed and torque between the units you need, so you do not have to hunt for a factor and work it out longhand.
Conversion factors are where unit mistakes happen, and a mistake here tends to propagate silently into everything calculated from it afterwards.
How the Torque to Hp Conversion Works
Each conversion uses the exact factor defined for the unit, so the answer is right to the precision you would normally quote.
Convert at one end rather than at several. Converting to a common unit first and then back again introduces rounding that you then have to carry through the rest of the calculation.
Getting the Units Right
Check that the unit you are converting from is the unit you actually measured in. Similar-looking units, particularly gallons and litres or ounces and grams, are the usual source of a factor-of-ten error.
Write down both the value and its unit. A number without a unit is not a measurement, it is a guess.
A Worked Example
Working through an example, with speed set to 10, torque set to 5, the calculator returns power of 5.23626, and horse power of 5.23626. Substitute your own figures and the same steps produce the same kind of answer.
Frequently Asked Questions
What do I need to work out horse power?
Enter speed and torque. The calculator then works through the relationship and reports horse power and power.
What does the torque to hp actually calculate?
It takes speed and torque and converts them into horse power and power using the standard relationship for this problem. Each step is applied in turn, so every output is traceable back to the numbers you typed in.
How should I enter speed?
Use the value you actually have, in the unit shown next to the field. Enter every value in the same unit system. The calculator assumes the figures you supply are consistent, so it cannot correct a mistake that happens before the calculation starts.
Why does a small change in one value move the answer so much?
That happens when an output depends on a ratio, because dividing by a small number magnifies any change in it. Check the units first, then check whether the value you entered is in the range the relationship was designed for.
Is the answer exact?
It is as exact as the formula and the inputs allow. The method itself is the standard one for this problem, so the only sources of error are the figures you enter and the precision you ask for.