Unit Converter - Henkankun
Takumi Kinjo Utilities iPhoneiPadiPod touch
Unit Converter - Henkankun is a free Utilities app for iPhone and iPad by Takumi Kinjo. Requires iOS 13.0. Updated July 7, 2026.
- Price
- Free
- on the App Store
- Size
- 46 MB
- Age 4+
- Updated
- Jul 7
- 2026 · v1.5.0
Screenshots
About Unit Converter - Henkankun
Henkankun - Your Ultimate Unit Converter "How many kilometers is 1 mile?" "What's 98°F in Celsius?" Get instant, accurate answers with this powerful unit conversion app. KEY FEATURES 18 Categories, 100+ Units • Length (m, km, in, ft, mi...) • Mass (g, kg, lb, oz...) • Temperature (°C, °F, K) • Area, Volume, Speed, Time • Pressure, Energy, Power • Concentration, Fuel Economy, Angle, Frequency • Flow Rate, Torque, Rotation • Currency (USD, EUR, JPY + 14 more) Real-Time Conversion See multiple conversion results instantly as you type. Compare units at a glance. One-Tap Swap Quickly switch between source and target units. Reverse calculations in a flash. Favorites & History Save frequently used conversions. Access your conversion history anytime. High-Precision Engine Powered by Decimal-based calculations for accurate, error-free results. PERFECT FOR • Cooking: cups & oz → mL & g • Travel: miles → km, °F → °C • DIY & Crafts: inches → cm • Work: PSI → Pa, gallons → L •Study & Research: Quick unit system conversions DESIGNED FOR SIMPLICITY • Clean, intuitive interface • Dark mode support • English & Japanese languages • Customizable decimal places & rounding • Non-intrusive ads for a smooth experience FULLY OFFLINE No internet required. Use it anywhere, anytime — even while traveling abroad with no data worries! From daily life to professional work, Henkankun handles all your unit conversion needs.
What’s new
Version 1.5.0 · Updated July 7, 2026
We have implemented the “Data Capacity and Data Transfer Speed” category, “Shakkanho Units,” and “Calculation Formula Input.”
App privacy
The developer, Takumi Kinjo, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
Used for: Third-Party Advertising
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Unit Converter - Henkankun | – | Free | July 7, 2026 | |
| ConvertCalc | 5.0 / 5 (2) | Free | Jan 19, 2026 | Compare |
| RepeatMe Timer for Watch | 2.4 / 5 (5) | 0.99 USD | Nov 18, 2023 | Compare |
| Image Compressor Studio | – | Free | Jan 10, 2026 | Compare |
| Unit Converter-EasyUnit | – | Free | Nov 15, 2025 | Compare |
| ASAGAO POWER | – | Free | Oct 21, 2025 | Compare |
| Slope Calculator & Tools | 5.0 / 5 (2) | Free | Jun 28, 2026 | Compare |