Quarter Mile ET & Trap Speed Calculator (0-400m Drag Racing)
Estimate your vehicle's 1/4 mile Elapsed Time (ET in seconds) and trap speed (mph & km/h) based on flywheel horsepower, total curb weight with driver, and drivetrain configuration.
1/4 Mile Elapsed Time (ET)
Calculator Inputs
1/4 Mile Elapsed Time (ET)
Finish Line Trap Speed (km/h)
Estimated 0-100 km/h (0-60 mph) Time
Trap Speed mph
Finish Line Trap Speed Metrics (km/h vs mph)
Uses Patrick Hale and Roger Morrison drag racing empirical equations. Assumes good traction and clean launch.
This calculator is designed for educational and informational purposes based on publicly declared statutory frameworks. The outputs do not constitute binding financial, tax, or legal advice. We assume no liability for decisions made based on these estimates. Always verify with the relevant official authorities or a certified professional advisor.
Calculation Methodology
Weight (lbs) = Weight (kg) * 2.20462. ET (seconds) = 5.825 * ((Weight lbs / HP) ^ 0.333). Trap Speed (mph) = 234 * ((HP / Weight lbs) ^ 0.333). km/h = mph * 1.60934.
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