---
title: "Engine Performance Calculators | XTRAW Tools"
description: "Engine performance calculators for RPM, gear ratio, torque to horsepower, horsepower to torque, engine displacement, tire diameter, and speed formulas."
url: "https://xtraw.com/tools/calculators/automotive-calculators/engine-performance-calculators/by,ordering"
date: "2026-08-20T18:59:54+00:00"
language: "en-GB"
---

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 # Engine Performance Calculators

#### Latest Tools

 [ ![Engine Displacement Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-engine-displacement-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/automotive-calculators/engine-performance-calculators/engine-displacement-calculator "Engine Displacement Calculator")  new

## [Engine Displacement Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2507&virtuemart_category_id=292&Itemid=173)

 Calculate total engine displacement from bore, stroke, and ...

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 [ ![Horsepower to Torque Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-horsepower-to-torque-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/automotive-calculators/engine-performance-calculators/horsepower-to-torque-calculator "Horsepower to Torque Calculator")  new

## [Horsepower to Torque Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2506&virtuemart_category_id=292&Itemid=173)

 Convert horsepower and RPM to engine torque. Use this free ...

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 [ ![Torque to Horsepower Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-torque-to-horsepower-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/automotive-calculators/engine-performance-calculators/torque-to-horsepower-calculator "Torque to Horsepower Calculator")  new

## [Torque to Horsepower Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2505&virtuemart_category_id=292&Itemid=173)

 Convert engine torque and RPM to horsepower. Use this free ...

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#### Products

 [ ![RPM Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-rpm-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/automotive-calculators/engine-performance-calculators/rpm-calculator "RPM Calculator")  new

## [RPM Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2504&virtuemart_category_id=292&Itemid=173)

 Calculate engine RPM from vehicle speed, gear ratio, and ...

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