Unit Converter

Convert units quickly and accurately—offline.
• Core categories: Length, Weight, Area, Volume, Speed, Time, Angle, Temperature, Data, Data Rate, Pressure, Energy, Power, Force, Fuel Economy
• Smart input: negative numbers and scientific notation (e.g., -40, 1e6)
• Quick swap From↔To and ⭐ favorite pairs (m↔ft, kg↔lb, °C↔°F)
• Unit search in the picker
• Affine units (factor + offset), including temperature scales
• Recent results chips for 1-tap reuse
• Copy or share: “123 m = 403.54 ft”
• Precision control: 0/2/3/4 decimals; number format: Locale or US (1,000.00)
• Manage units: add/edit your own (linear/affine/temperature)
• Manage categories: add/rename; protect defaults; hide/show; sorting
• Backup & Restore all categories and units to JSON; reset to defaults
No sign-in required. Works offline.