# Fast Molality Calculator — fast concentration calculation

> fast concentration calculation (iPhone/iPad app by JIN-HYUNG KIM.)

- Source: https://appshunter.io/ios/app/fast-molality-calculator/id6451112827 (this page in markdown: same URL + `.md`)
- Developer: [JIN-HYUNG KIM](https://appshunter.io/developer/1692050199)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 30 MB
- Languages: English, Korean
- Released: 2023-07-14
- Data updated: 2026-06-20
- User reviews in markdown: https://appshunter.io/ios/app/fast-molality-calculator/id6451112827/reviews.md

## What is Fast Molality Calculator?

Lab Calculator is a lightweight science calculator for common solution concentration work in class, lab preparation, and research routines.

Switch between percent concentration, molarity, dilution, and ppm/ppb tools. Enter the known values, choose units, and calculate the missing value without setting up a spreadsheet.

Key features

- Percent concentration: calculate %, solute mass, or solution volume
- Molar concentration: calculate concentration, molecular weight, mass, or volume
- Dilution calculator: based on C1 x V1 = C2 x V2
- ppm/ppb calculator: trace concentration using mg/L
- Unit selection: g, mg, μg, L, ml, μl, M, mM, μM, and more
- Quick reset: clear inputs and start a new calculation
- Compact layout: designed for fast use on small screens

Useful for

- Students preparing chemistry experiments
- Researchers working with stock and working solutions
- Users who often check percent concentration, dilution, or ppm values
- Anyone who wants a simple calculator instead of a spreadsheet

No account is required. Values entered for calculation are not sent to a server.


## Version history (last 2 releases)

### 3.3.2 — 2026-06-01

Refreshed design with new dilution and ppm calculators.

### 1.0 — 2023-07-14

No release notes.

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All apps by JIN-HYUNG KIM: https://appshunter.io/developer/1692050199

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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 2026-06-20.*