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0-60 Calculator
Estimate a car’s 0-60 mph time from weight and horsepower.
0–60 mph
—
Estimated time.
| Power-to-weight | — |
|---|---|
| Weight | — |
| Horsepower | — |
| — |
Show our math
Enter your figures above to see the step-by-step working.
Rough estimate — traction variesEverything computed client-side — nothing leaves this page
How the 0-60 Calculator Works
A car’s 0-60 time is driven mostly by its power-to-weight ratio. This uses a well-known empirical estimate: about 0.8 times the weight-to-power ratio raised to the three-quarters power. A 3,500-pound car with 300 horsepower comes out near 5 seconds — close to what such a car actually runs.
It’s an estimate, not a dyno. Real acceleration also depends on traction, gearing, drivetrain (all-wheel drive launches harder), transmission and aerodynamics, so treat the number as a ballpark for comparing cars.
0-60 ≈ 0.8 × (weight ÷ horsepower)0.75
Frequently Asked Questions
How is 0-60 time estimated?
From the power-to-weight ratio — roughly 0.8 times (weight ÷ horsepower) to the 0.75 power. More power or less weight means a quicker time.
Why is my real 0-60 different?
Traction, gearing, drivetrain, transmission and aerodynamics all matter. All-wheel-drive cars especially launch faster than this estimate suggests.
Does weight or power matter more?
Both matter through their ratio. Cutting weight and adding power both improve acceleration; it’s the pounds-per-horsepower that counts.
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