# Horsepower Trap Speed Calc — Torque/Engine & CNC G Codes

> Vehicle horsepower, torque, and CNC code calculator with unit converters. (iPhone/iPad app by Verosocial Studio.)

- Source: https://appshunter.io/ios/app/horsepower-trap-speed-calc/id414455060 (this page in markdown: same URL + `.md`)
- Developer: [Verosocial Studio](https://appshunter.io/developer/354566841)
- Category: Business, Reference
- Price: $0.99
- Rating: 3.25/5 from 4 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.3 · 5 MB
- Languages: English
- Released: 2011-01-18
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/horsepower-trap-speed-calc/id414455060/reviews.md

## What is Horsepower Trap Speed Calc?

The Horsepower calculator gives an estimate of vehicle(car, truck, motorcycle) engine horsepower, torque and other engine computations. Additionally supplied are five helpful converters for US/Imperial and Metric units.

Also, you are buying a reference for common CNC Programming G-Codes and M-Codes. It is useful to machinists, engineers, programmers, teachers and students.

Horsepower Calculators

- Trap Speed
- Estimated Time
- Torque/Engine Speed

The Trap Speed method uses the gross weight of the car, including the driver, and the speed at which the car completed the quarter-mile run, which is 1330 feet or 0.405 kilometers.

The Estimated Time method uses the gross weight of the car, including the driver, and the time it took that car to travel the quarter-mile run, which is 1330 feet or 0.405 kilometers.

The Torque speed method uses the torque in foot-pounds times the engine speed in revolutions per minute, RPM, divided by 5,252 to get the horsepower.

Converters

- Tire Diameter
- Power/Weight Ratio
- Horsepower and Kilowatts 
- Fuel Flow
- Temperature Conversion

Area Converters

• Square Inches and Shorter Conversion
• Square Feet & Yards & Meters Conversion

Distance Converters

• Inches & Centimeters & Millimeters Conversion
• Feet & Yards & Meters Conversion
• Miles & Kilometers Conversion

Volume Converters

• US/Imperial to Metric Units Conversion
• Metric to US/Imperial Units Conversion
• Inches & Centimeters Volume Conversion
• Feet, Yards, & Meters Volume Conversion 

This app features: 

• Send your calculations or conversions by email 
• Universal App (iPhone, iPod Touch, and iPad)
• Latest version of iOS is supported
• All iPhone screens are supported
• Retina Display graphics 
• Fast app switching 
• Automatically Saves Your Inputs 

No network connectivity required.

Note: All information in this app is for informational purposes only.

## Key features

- Horsepower and torque estimation
- Trap speed calculation
- Estimated time calculation
- Torque/engine speed calculation
- US/Imperial and Metric unit converters
- CNC G-Code and M-Code reference

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/horsepower-trap-speed-calc/id414455060/reviews.md

### 5/5 — Great app for cars and engines

*2018-07-25, version 7.4*

Results are quick

### 1/5 — Too complicated!

*2018-05-05, version 7.3*

This app is way to complicated, and not accurate at all in my experience.

### 5/5 — Awesome Full Featured Resource!

*2014-06-06, version 7.0*

I've had this app since it was two separate sections relating to ET speed and estimated HP. The developer has continually added new, abstract, unusual and very useful information modules. The newest update seems to include programming info for computerized CNC machines.

### 1/5 — NOT an accurate RWHP calc!

*2013-06-30, version 5.0*

Put in all the figures from my actual car & it was like 20% off from the dyno :(

### 5/5 — Very good

*2012-08-26, version 4.3*

This is a pretty a accurate app in every section of calculation if you enter the information correctly

## Frequently asked questions about Horsepower Trap Speed Calc

### What is the price of Horsepower Trap Speed Calc?

Horsepower Trap Speed Calc is a paid app priced at $0.99. This one-time purchase grants access to all its features without ongoing costs.

### What devices is Horsepower Trap Speed Calc compatible with?

Horsepower Trap Speed Calc is a universal app designed for iPhone, iPod Touch, and iPad. It supports all iPhone screens and the latest versions of iOS.

### How often is Horsepower Trap Speed Calc updated?

The app was last updated on July 25, 2018, to version 7.4. While it has not received recent updates, it is designed to support the latest iOS versions.

### Does Horsepower Trap Speed Calc have ads?

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

### What is the age rating for Horsepower Trap Speed Calc?

Horsepower Trap Speed Calc has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions.

### Can I send my calculations from Horsepower Trap Speed Calc?

Yes, you can send your calculations or conversions via email directly from the Horsepower Trap Speed Calc app. This feature allows for easy sharing of results.

### Does Horsepower Trap Speed Calc require an internet connection?

No, Horsepower Trap Speed Calc does not require network connectivity to function. All calculations and conversions can be performed offline.

### What do users think of Horsepower Trap Speed Calc?

Based on the available data, Horsepower Trap Speed Calc has an average rating of 3.3 stars from 4 ratings. This suggests a mixed user reception.

## Version history (last 5 releases)

### 7.4 — 2018-07-25

This app has been updated by Apple to display the Apple Watch app icon.

Bug fixes to prevent crashing

### 7.3 — 2015-03-03

Updated for iOS 8
Support for iPhone 6 and 6+ screen sizes

### 7.2 — 2014-09-15

Bug Fixes

### 7.1 — 2014-06-14

Bug Fixes

### 7.0 — 2014-06-05

Added G-Codes reference list

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## More apps by Verosocial Studio

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- [Gas Oil Mixture Ratio](https://appshunter.io/ios/app/gas-oil-mixture-ratio/id380750809)

All apps by Verosocial Studio: https://appshunter.io/developer/354566841

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*