# Crash Calc — Crash Reconstruction Formulas

> Mobile application for traffic accident reconstruction formulas and calculations. (iPhone/iPad app by Coastal Crash Consultants, LLC.)

- Source: https://appshunter.io/ios/app/crash-calc/id1459449142 (this page in markdown: same URL + `.md`)
- Developer: [Coastal Crash Consultants, LLC](https://appshunter.io/developer/1459449141)
- Category: Productivity, Business
- Price: Free with in-app purchases
- Rating: 3.67/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.1 · 29 MB
- Languages: English
- Released: 2019-05-08
- Data updated: 2026-06-01
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/crash-calc/id1459449142/reviews.md

## What is Crash Calc?

Crash Calc is a subscription based application that contains a collection of the most commonly used formulas for traffic accident reconstruction.  Available in both US (Imperial) and Metric measurements.  Easily calculate your results and save them for your files, all done right on your phone.  Never have to wait to get back to the office again. 

With your monthly or yearly subscription you will find Crash Calc is broken down into seven logical categories of formulas.

•	Drag Factors – Calculate your drag factors by several different ways then adjust for braking, slope and super-elevation.
•	Speed – Includes speed conversation to velocity, speed formulas and then momentum of both in-line crashes as well as angular crashes.
•	Time-Distance-Velocity – Explore the relationship between the three variables.
•	Kinetic Energy – Calculate the energy present during a crash and force required to produce damage.  Includes KE formulas, Vector Sum Analysis and Crush formulas.
•	Center-of-Mass, Radius, Critical Speed and Roll-Over – Grouped together to easily move from one formula to the next.
•	Airborne – Calculate speed required to travel from takeoff to landing
•	Miscellaneous section includes a Pedestrian formula, Motorcycle formulas and Swerve to Avoid formula
•	Slope Indicator – Use this feature to easily find the slope of the roadway in question.  Simply place your phone down on the roadway (or takeoff angle) in the direction of travel and instantly read the slope on your phone.

Subscription Details:
- Crash Calc is a subscription based app that provides all of the most commonly used formulas in crash reconstruction.
- It is available for $3.99/Monthly or $39.99/Annually
- You can cancel online anytime - there is no cancellation fee.
- Payment will be charged to iTunes Account at confirmation of purchase.
- You can use the subscription on any device registered with your Apple account.
- Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.
- Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal.
- Cancellation will not go into effect until the end of the monthly or annually billing cycle.
- Subscription may be managed by the user and turned off by going to the user's Account Settings after purchase.
- Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription.
- Privacy Policy: https://crashcalc.com/privacy-policy.html
- Terms of Service: https://crashcalc.com/terms-and-conditions.html

* This fee reflects USA subscription cost.
Fees can vary depending on User's country.

We’d love to hear from you.  Please visit us at crashcalc.com or drop us a line at support@crashcalc.com

## Key features

- Traffic accident reconstruction formulas
- US (Imperial) and Metric measurements
- Drag factor calculations
- Speed and momentum calculations
- Kinetic energy and force calculations
- Slope indicator for roadways
- Save results on phone

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Crash Calc (Monthly) | $3.99 | per month |
| Crash Calc (Yearly) | $39.99 | per year |
| Crash_Calc_Monthly | $3.99 | per month |
| Crash Calc Yearly | $39.99 | per year |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/crash-calc/id1459449142/reviews.md

### 1/5 — £40 a year for an every now and again use

*2021-03-02*

I thought the £3.99 price for the app was fine but that was for a month .

I’ll get my pen out first

## Frequently asked questions about Crash Calc

### What is Crash Calc?

Crash Calc is a subscription-based mobile application designed to provide users with commonly used formulas for traffic accident reconstruction. It allows for calculations in both US (Imperial) and Metric measurements directly on a smartphone or tablet.

### How much does Crash Calc cost?

Crash Calc offers two subscription plans: $3.99 per month or $39.99 per year. Both plans include a 14-day free trial period. Pricing may vary by country.

### Can I cancel my Crash Calc subscription?

Yes, you can cancel your subscription online at any time without any cancellation fees. The cancellation will take effect at the end of your current monthly or annual billing cycle.

### What types of formulas are included in Crash Calc?

Crash Calc includes formulas for Drag Factors, Speed, Time-Distance-Velocity, Kinetic Energy, Center-of-Mass, Radius, Critical Speed, Roll-Over, Airborne calculations, and a Miscellaneous section with Pedestrian, Motorcycle, and Swerve to Avoid formulas.

### Does Crash Calc have a slope indicator feature?

Yes, Crash Calc features a Slope Indicator that allows users to place their phone on the roadway in the direction of travel to instantly read the slope.

### On which devices can I use Crash Calc?

Crash Calc is available for use on iPhones, iPads, and iPods. Your subscription can be used on any device registered with your Apple account.

### How often is Crash Calc updated?

The latest version of Crash Calc is 2.1, which was last updated on March 6, 2021. Information on update frequency beyond this is not provided.

### What is the age rating for Crash Calc?

Crash Calc has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 5 releases)

### 2.1 — 2021-03-06

Updates minor issues with formula pages in a few imperial and metric formulas.  Makes it compatible with newer version of Apple operating systems and iPads

### 2.0 — 2021-02-26

Fix's minor issues with one drag formula page and several metric formulas

### 1.7 — 2019-12-03

This version fixes issue with In-Line Momentum Calculations for Metric Users

### 1.2.10 — 2019-11-07

This version fixes issue with In-Line Momentum Calculations for Metric Users

### 1.2.9 — 2019-06-28

New lower rate to make Crash Calc more affordable so anybody that requires crash formulas can have them available on their phones anytime.  Enhanced results with inclusion of all math required to complete formula.

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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 2026-06-01.*