Unit converter vs Precision Metric

UnitFlow is a smart, professional unit converter designed for fast and accurate results. Convert across 14 categories: Pressure, Length, Power, Flow, Area, Energy, Speed, Volume, Density, Acceleration, Force, Mass, Temperature, and Angle Why users choose UnitFlow: - Real-time conversion as you type - Smart input detection (for example: 10 km, 5 bar) - Scientific notation support for technical values - Adjustable precision (2-10 decimals) plus precision mode - Quick unit search and easy unit swap - Save favorite conversion pairs - Local conversion history (last 20 entries) - View all conversions mode from one input - Locale-aware number formatting - Light, dark, or system theme - Optional screen rotation lock - Works fully offline, with no account required Built for engineering tasks and everyday use, UnitFlow helps you convert units quickly and confidently wherever you are.

Convert any unit with precision you can trust. Precision Metric is a fast, accurate unit converter with 234 units across 30 categories. Every calculation uses NIST-verified conversion factors with up to 50-digit internal precision. No ads. No tracking. Works completely offline. FEATURES: • 30 categories: Length, Mass, Temperature, Volume, Time, Area, Speed, Pressure, Energy, Force, Torque, Frequency, and more • Compound unit input — enter values as 5ft 3in or 2lb 8oz • Batch convert — convert dozens of values at once and share as CSV • Significant figures mode with dp/sf toggle • Conversion audit trail — see the exact factor, source, and math • Industry quick sheets for Cooking, Construction, Engineering, Science, and Medical • Real-time conversion as you type • Pair search — type "miles to km" and go straight to converting • Save favorite conversion pairs • Haptic feedback on key actions FREE TO USE: • 7 everyday categories with common units • Up to 4 decimal precision • 5 saved conversions, 10 history entries • All features except Pro units and extended precision UPGRADE TO PRO (one-time purchase): • All 30 categories and 234 units • Up to 15 decimal precision and sig figs • Unlimited saves and history • Batch conversion and CSV export • Conversion audit trail with NIST sources • Pay once, yours forever — no subscriptions BUILT FOR PROFESSIONALS: • NIST and SI verified conversion factors • Arbitrary-precision math — no floating-point errors • Compound units: feet+inches, pounds+ounces, hours+minutes+seconds • Temperature: Celsius, Fahrenheit, Kelvin, and Rankine • Every factor traceable to international reference standards Works offline. No data collected. No ads. No tracking. Your conversions stay on your device.