# Iron Calculator - Lbs/Kg Calc — Calculate PR & Weight - Lbs/Kg

> Fitness weight converter and personal record tracker. (iPhone/iPad app by Chi Zhang.)

- Source: https://appshunter.io/ios/app/iron-calculator-lbskg-calc/id6755076408 (this page in markdown: same URL + `.md`)
- Developer: [Chi Zhang](https://appshunter.io/developer/1802283849)
- Category: Health & Fitness, Sports
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.6 · 2 MB
- Languages: Chinese (Simplified, China)
- Released: 2025-11-10
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/iron-calculator-lbskg-calc/id6755076408/reviews.md

## What is Iron Calculator?

Easy go-to kg/lbs converter.
1RM calculator.
Record & trace your PR(personal record) in one tap!

## Key features

- Kilogram/pound conversion
- 1RM calculator
- Personal record tracking
- Weight logging
- Easy to use interface


## Frequently asked questions about Iron Calculator

### How does Iron Calculator convert weights?

Iron Calculator allows for quick conversion between kilograms (kg) and pounds (lbs). This feature is essential for users who train in different regions or use equipment marked in different units.

### What is the 1RM calculator feature in Iron Calculator?

The 1RM calculator helps you estimate your one-rep maximum, which is the maximum weight you can lift for a single repetition. This is a key metric for strength training progress.

### Can I track my personal records with Iron Calculator?

Yes, Iron Calculator enables you to record and trace your personal records (PRs) with a single tap. This makes it easy to monitor your strength gains over time.

### What devices does Iron Calculator support?

Iron Calculator is currently supported on iPhones. It was released on November 10, 2025, with version 1.0.

### Is Iron Calculator free to use?

Yes, Iron Calculator is completely free to download and use. There are no costs associated with its core functionality.

### Does Iron Calculator have ads?

No, Iron Calculator does not contain advertisements. It is a completely ad-free experience for users.

### What is the age rating for Iron Calculator?

Iron Calculator has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger individuals interested in fitness.

### How often is Iron Calculator updated?

The application was last updated on November 10, 2025, with version 1.0. Future updates will be released by the developer, Chi Zhang.

## Version history (last 1 release)

### 1.0 — 2025-11-10

No release notes.

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## More apps by Chi Zhang

- [AikiCard](https://appshunter.io/ios/app/aikicard/id6747163240)

All apps by Chi Zhang: https://appshunter.io/developer/1802283849

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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.*