🇮🇳 Performance Calculator
Quarter Mile Calculator
Estimate your car's quarter mile (402m) elapsed time (ET) and trap speed using the industry-standard Hale/Fox formula from power (PS) and vehicle weight (kg).
Vehicle Specs
Disclaimer: Mathematical estimate only. Real quarter mile times depend on launch technique, traction, altitude, temperature, tyre compound, and many other variables. ±1-2 second margin is typical.
Quarter Mile ET
elapsed time (402m)
Trap Speed
130 km/h
Power-to-Weight
9.7 kg/PS
Est. 0-100 km/h
6.4s
Class
Street
ET Reference Chart
The quarter mile formula.
Trap Speed = 288 × (Power[PS] / Weight[kg])^(1/3) km/h
AWD bonus: ET × 0.93
FWD penalty: ET × 1.05
Frequently asked questions.
What is a quarter mile time?
It is the elapsed time (ET) a car takes to cover a quarter mile (402 metres) from a standing start, along with the trap speed at the finish line - the classic drag-racing measure of straight-line performance. It is a US-origin motorsport unit, but still a recognised way to benchmark performance.
What is a fast quarter mile time?
An average Indian sedan runs 18-20 seconds, hot hatches and turbo-petrol SUVs 15-17, and performance EVs and modified cars 11-13. Anything under 11 seconds usually requires serious modification or a dedicated race car.
How is quarter mile time estimated?
It is estimated from the car's power-to-weight ratio (kg per PS) using formulas like Roger Huntington's. Real-world times also depend on traction, tyres, gearing, launch technique, and driver skill.