Engine Horsepower Calculator

Estimate engine horsepower using quarter-mile trap speed, elapsed time, dyno correction factors, or fuel consumption (BSFC).

Method

Uses quarter-mile trap speed to estimate peak horsepower. Formula: HP = Weight × (Trap Speed / 234)³

Estimated Horsepower
234.14 HP
174.6 kW

Results Summary

MethodHPkW
Trap Speed234.14174.6
Elapsed Time382.25285.04
Dyno (corrected)1,096.33817.53
BSFC6044.74

HP → kW Reference

HPkW
10074.57
150111.86
200149.14
250186.43
300223.71
350261
400298.28
500372.85
600447.42
700521.99
800596.56
1000745.7