This single-file solution provides a high-performance, responsive tool for engine performance calculations, utilizing a modern, glassmorphic UI design. ```html Free Horsepower to Torque Calculator & RPM Converter
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Engine Performance Calc

Calculate HP, Torque, and RPM instantly.

Calculated Torque

0.00

How it works

The calculation uses the industry-standard constant 5252.

Formula: Torque = (HP × 5252) / RPM

Formula: HP = (Torque × RPM) / 5252

At 5252 RPM, Horsepower and Torque figures will always be equal.