# Convert Units Calculator — Fast unit conversions

> Fast unit conversions (iPhone/iPad app by Nelson Lai.)

- Source: https://appshunter.io/ios/app/convert-units-calculator/id6758808738 (this page in markdown: same URL + `.md`)
- Developer: [Nelson Lai](https://appshunter.io/developer/1477911199)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 49 MB
- Languages: English
- Released: 2026-02-09
- Data updated: 2026-06-28
- User reviews in markdown: https://appshunter.io/ios/app/convert-units-calculator/id6758808738/reviews.md

## What is Convert Units Calculator?

Convert Units Calculator is a clean, lightweight unit conversion app designed for everyday use.

Convert values instantly across 10 categories:
- **Length** (mm, cm, m, km, in, ft, yd, miles, nautical miles)
- **Weight** (mg, g, kg, metric tons, oz, lb, stone)
- **Temperature** (°C, °F, K)
- **Volume** (mL, L, m³, tsp, tbsp, fl oz, cups, pints, quarts, gallons)
- **Area** (mm², cm², m², hectares, km², in², ft², yd², acres, mi²)
- **Speed** (m/s, km/h, mph, ft/s, knots)
- **Time** (ms, s, min, h, days, weeks)
- **Data** (bit, B, KB, MB, GB, TB)
- **Energy** (J, kJ, cal, kcal, Wh, kWh, BTU)
- **Pressure** (Pa, kPa, bar, psi, atm, mmHg)

**FEATURES**
- Fast results as you type
- Quick swap between "from" and "to" units
- Tap a result to copy it to the clipboard
- Works offline
- Simple, modern UI


## Version history (last 2 releases)

### 1.0.3 — 2026-06-28

removed duplicate header text

### 1.0.0 — 2026-02-09

No release notes.

## More apps by Nelson Lai

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- [Personal LLM](https://appshunter.io/ios/app/personal-llm/id6754661513)

All apps by Nelson Lai: https://appshunter.io/developer/1477911199

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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 2026-06-28.*