ConvertBox: Unit Converter

10+
Downloads
Content rating
Everyone
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About this app

ConvertBox is a fast, accurate, and easy-to-use offline unit converter app.
Convert units instantly across multiple categories — no internet connection required.

Designed for students, professionals, and everyday users, ConvertBox makes unit conversion simple and reliable.
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🔢 Supported Conversions

• 📏 Length
• ⚖️ Mass
• 🌡 Temperature
• 🧪 Volume
• 🚀 Speed
• 🧱 Pressure
• ⚡ Energy
• 📐 Area
• 🧮 Density
• 🔌 Power
• ⏱ Time
• 💾 Data Size
• 📐 Angle
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⚙️ Key Features

• Works completely offline
• Fast and accurate unit conversions
• Swap units instantly ⇆
• Conversion history (stored locally)
• Copy results with one tap 📋
• Clean, modern, and lightweight design
• No login, no ads, no tracking
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🔐 Privacy Friendly

ConvertBox stores all data locally on your device.
No accounts, no cloud sync, no internet access required.
Your usage stays private and offline.
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🎯 Perfect For

• Students & teachers
• Engineers & professionals
• Daily calculations & measurements
• Anyone needing a reliable offline unit converter
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📥 Download Now

Download ConvertBox and enjoy fast, accurate, and offline unit conversion anytime, anywhere.
Updated on
Jan 25, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection