EngineCalc

EngineCalc

Engine Builder's Calculator

4 ratings
6 reviews
$0.99

Details

Released
June 29, 2010
Updated
September 24, 2026

Features

EngineCalc screenshot #1 for iPhone
EngineCalc screenshot #2 for iPhone
EngineCalc screenshot #3 for iPhone
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EngineCalc screenshot #5 for iPhone
EngineCalc screenshot #6 for iPhone
EngineCalc screenshot #7 for iPhone
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About

This utility app provides a collection of essential formulas and calculators for powersports and engine tuning. It allows users to perform complex calculations directly on their iPhone, eliminating the need for a laptop or desktop computer.

✓Powersports formulas
✓Engine tuning calculators
✓Actual Volume Flow
✓Air Density
✓Compression Ratio
✓Cylinder Displacement
✓Volumetric Efficiency
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What's New in EngineCalc

2.0

September 24, 2026

EngineCalc 2.0: search your calculators instantly, share results in one tap, usage-sorted unit conversions, and an on-demand help guide. Dozens of bug fixes and stability improvements under the hood.

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User reviews

Nice

Looks like all the old bugs have been fixed and the new conversions are pretty helpful.

Needs to be updated

This could be a really good app. It is laid out very well easy to use and switches between Eng/Metric without loosing data.

Biggest issue is the app crashes when entering data as you move around the app. Then you are always starting over, I was never able to test the power calculations to see how accurate they are. Disappointed to say the least.

I will be looking for updates, hopefully soon.

This was test on IOS 12.4.1 September 2019
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Keeps Crashing

I tap on various parameters to fill them in and it just keeps crashing. So hasn't proved usable. Also there doesn't seem to be any way to save or share the information so once you leave the app you lose your work. Annoying. iPhone 6s.

Great but easily could be better

Love this ap in terms of concept and ease of use. It's an engine designers dream to have this in their hands. I only wish there was a way to work with metric units. Inches seem to be the only option.

Great App

For someone who tunes/tricks cars all day this app is very useful if you are interested in the numbers. It delivers the accurate calculations and my customers want the specs! Great job and much needed for this platform.

Developer apps

FAQ

What is EngineCalc used for?

EngineCalc is a collection of formulas and calculators specifically designed for powersports and engine tuning. It helps users perform calculations like compression ratio, cylinder displacement, and horsepower directly on their iPhone.

How much does EngineCalc cost?

EngineCalc is a paid application priced at $0.99. This one-time purchase grants you access to all the included calculators and formulas.

What devices does EngineCalc support?

EngineCalc is designed for Apple devices, specifically supporting the iPhone and iPod. It is not currently available for Android or other platforms.

When was EngineCalc last updated?

The latest version of EngineCalc, 1.5.1, was released on February 17, 2014. The app was originally released on June 29, 2010.

What is the age rating for EngineCalc?

EngineCalc has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

Does EngineCalc have ads?

No, EngineCalc does not contain advertisements. As a paid application, it offers an ad-free experience for its users.

What are some of the calculators available in EngineCalc?

EngineCalc includes a variety of calculators such as Actual Volume Flow, Air Density, BHP Loss, Compression Height, Compression Ratio, Cylinder Displacement, Horsepower, and Volumetric Efficiency, among others.

What do users think of EngineCalc?

Based on the available data, EngineCalc has received 3 ratings with an average of 2.3 stars. This suggests a mixed user reception.