Unit Converter

Unit Converter Pro is a fast, accurate, and completely offline unit converter. No internet, no accounts, no ads, and no permissions — it just works, instantly, anywhere.

Whether you're cooking, studying, working on a DIY project, traveling, or doing your job, convert between 150+ units across 16 categories in a clean, modern interface built for speed.

── 16 CATEGORIES, 150+ UNITS ──
• Length — mm, cm, m, km, inch, foot, yard, mile, and more
• Weight & Mass — mg, g, kg, tonne, ounce, pound, stone
• Temperature — Celsius, Fahrenheit, Kelvin
• Area — sq m, sq ft, acre, hectare, and more
• Volume — ml, litre, gallon, cup, pint, fluid ounce
• Speed — km/h, mph, m/s, knots
• Time — ms, seconds, minutes, hours, days, weeks, years
• Data Storage — bytes to petabytes (binary and decimal)
• Pressure — pascal, bar, psi, atm
• Energy — joule, calorie, kWh, BTU
• Power — watt, kilowatt, horsepower
• Angle — degree, radian, gradian
• Fuel Economy — L/100km, mpg (US & UK), km/L
• Cooking — cups, tablespoons, teaspoons, millilitres
• Frequency — Hz, kHz, MHz, GHz
• Currency — 20+ currencies with your own editable rates

── BUILT FOR SPEED ──
• Live conversion as you type
• One-tap swap between "from" and "to" units
• See your value converted to every unit in a category at once
• Long-press any result for full precision
• Copy or share results instantly

── MADE YOUR WAY ──
• Star your most-used conversions as favorites for one-tap access
• Search across every unit and category
• Automatic history of your recent conversions
• Adjustable decimal precision (2–10 places)
• Beautiful Material Design with full dark mode

── 100% OFFLINE & PRIVATE ──
• Works with zero internet connection
• Requests NO permissions whatsoever
• No ads, no tracking, no sign-up
• Tiny download, lightning fast

A note on currency: exchange rates are manual by design, so the app stays fully offline. Set your own rates once and edit them anytime — perfect for quick travel budgeting without a data connection.

Fast, precise, private, and free. Download Unit Converter Pro and convert anything, anywhere.