# C5LR Calculator

> A specialized calculator for aircraft weight and balance calculations. (iPhone/iPad app by Brandon Esten.)

- Source: https://appshunter.io/ios/app/c5lr-calculator/id1445218560 (this page in markdown: same URL + `.md`)
- Developer: [Brandon Esten](https://appshunter.io/developer/1445218559)
- Category: Productivity, Reference
- Price: Free
- Rating: 5.00/5 from 9 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 0 MB
- Languages: English
- Released: 2018-12-02
- Data updated: 2026-08-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/c5lr-calculator/id1445218560/reviews.md

## What is C5LR Calculator?

It's cumbersome to calculate bag counts and adjust for child credits, crew bags or additional crew members... When you're under the gun to push from the gate on time, use this CLR calculator to make your job easier and focus on the things that matter more than performing basic math routines.

Enter the figures off the paper CLR into the app scratchpad using the keypad (oriented like the FMS interface); then line select that value using the appropriate L1 through L7 key. The app enters that value into the center column and then automatically calculates the corresponding weights in the right-side column. A running tally is kept in the 'subtotal' and 'final' lines.

If you enter a figure into the scratchpad in error, use the 'C' key at bottom-right to clear it out; when you have finished all of your calculations, use the 'RST' button at bottom-left to configure the form back to default values.

I hope this program is useful to you, please send me any suggestions for future updates. Version updates planned include better iPad compatibility. If you find this app useful, take time to make a small donation to some charity you deem worthy.

## Key features

- Automatic weight calculations
- Input figures from paper CLR
- Running subtotal and final tally
- Clear entry errors
- Reset to default values
- iPad compatibility planned

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/c5lr-calculator/id1445218560/reviews.md

### 5/5 — Time saver !!

*2019-11-09*

It works great makes cargo calculations much easier. Thanks

### 5/5 — Great little app!

*2019-10-14*

Easy and useful

### 5/5 — Awesome app!

*2019-04-27*

Thanks Brandon for the great app!

### 5/5 — Thank you, very useful.

*2018-12-05*

Easy to use, and lets me focus on more important tasks.

## Frequently asked questions about C5LR Calculator

### What is C5LR Calculator used for?

C5LR Calculator is designed to help flight crews quickly and accurately calculate aircraft weight and balance, simplifying the process of preparing for gate push.

### How does C5LR Calculator work?

You enter figures from a paper CLR into the app's scratchpad, select the corresponding line key, and the app automatically calculates the weights in the center and right columns, maintaining a running tally.

### Can I correct mistakes in C5LR Calculator?

Yes, you can use the 'C' key to clear individual entries made in error. The 'RST' button resets the entire form to its default values.

### What devices is C5LR Calculator available on?

Currently, C5LR Calculator is supported on iPads. Future updates are planned to improve iPad compatibility.

### How often is C5LR Calculator updated?

The app was last updated on July 3, 2021, with version 3.0. Future updates are planned, including enhanced iPad compatibility.

### What is the user rating for C5LR Calculator?

C5LR Calculator has a perfect rating of 5.0 stars based on 9 user ratings, indicating high user satisfaction.

### Does C5LR Calculator have ads?

No, C5LR Calculator does not contain advertisements. It is a free application without any ads.

### Is C5LR Calculator suitable for all ages?

C5LR Calculator has an age rating of 4+, making it suitable for users of all ages who require its specific calculation functions.

## Version history (last 3 of 3)

### 3.0 — 2021-07-03

Updated weights for 2021; landscape and portrait views.

### 2.0 — 2019-02-24

Layout for landscape view only, new adjustment line and added instructions.

### 1.0 — 2018-12-02

No release notes.

## Apps similar to C5LR Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [InspectNow](https://appshunter.io/ios/app/inspectnow/id1444473799) | — | Free | Productivity |
| [Calc Thingy - Calculate your lists](https://appshunter.io/ios/app/calc-thingy-calculate-your-lists/id980736771) | 5.0 (5) | Free | Productivity |
| [Marine Survey](https://appshunter.io/ios/app/marine-survey/id1140523701) | 4.6 (8) | Free | Productivity |
| [Veryon Tracking](https://appshunter.io/ios/app/veryon-tracking/id1091303649) | 4.6 (11) | Free | Productivity |
| [CrewBid2](https://appshunter.io/ios/app/crewbid2/id1620490378) | 2.9 (19) | Free | Productivity |
| [CMT Resources](https://appshunter.io/ios/app/cmt-resources/id1559844362) | 5.0 (21) | Free | Productivity |

## More apps by Brandon Esten

- [EMB-145 Bleed System Simulator](https://appshunter.io/ios/app/emb-145-bleed-system-simulator/id1490608566)
- [FMS/ACARS](https://appshunter.io/ios/app/fmsacars/id1501036447)
- [E Tenebris](https://appshunter.io/ios/app/e-tenebris/id1623033728)

All apps by Brandon Esten: https://appshunter.io/developer/1445218559

---

*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 2026-08-25.*