Quarter Mile (Drag Racing) Calculator

Use this calculator to estimate your vehicle's quarter mile time based on weight and horsepower. Ideal for car enthusiasts and racers looking to optimize performance.

Calculator

Vehicle Weight (lbs) *

Horsepower *

Results

Estimated Quarter Mile Time: N/A

Data Source and Methodology

All calculations are based on established automotive performance formulas.

The Formula Explained

This calculator uses the formula: ET = 5.825 × (Weight / Horsepower)^(1/3)

Glossary of Terms

Vehicle Weight:: The total weight of the vehicle including driver and fuel.
Horsepower:: The engine's power output.
Estimated Time (ET):: The calculated time to complete a quarter mile.

How It Works: A Step-by-Step Example

Example: A vehicle weighing 3,000 lbs with 400 HP will have an estimated ET of 12.3 seconds.

Frequently Asked Questions (FAQ)

What is a quarter mile?

A quarter mile is a standard distance used in drag racing, measuring 1,320 feet.

Why is vehicle weight important?

Weight affects acceleration; lighter vehicles generally perform better over a quarter mile.