Power to Weight Ratio Calculator

Formula

The formula to calculate the Power to Weight Ratio (PTW) is:

\[ PTW = \frac{P}{W} \]

Where:

\( PTW \) is the power to weight ratio
\( P \) is the power, typically expressed in horsepower or kW
\( W \) is the weight, typically expressed in lbs or kgs

What is Power to Weight Ratio?

Power to weight ratio is a measure of how much power a vehicle or machine has in relation to its weight. It helps determine the overall performance and efficiency of the vehicle or machine by indicating how much power is available for each unit of weight. A higher power-to-weight ratio generally indicates better performance, particularly in terms of acceleration and handling.

Example Calculation

Let's assume the following values:

Power (P) = 300 horsepower
Weight (W) = 3500 lbs

Using the formula to calculate the Power to Weight Ratio:

\[ PTW = \frac{300}{3500} = 0.0857 \text{ hp/lb} \]

The Power to Weight Ratio is 0.0857 hp/lb.