Units - Conversion Calculator

57 categories, built-in calculators, size charts, live currency rates & 7 languages. No ads, no tracking, all your data stays on your device. Convert anything, instantly.

Convert any unit, instantly.

Units - Conversion Calculator is a fast, intuitive, and beautifully designed conversion tool with 57 categories covering everything you need from everyday measurements to specialized engineering and scientific units.

What you can convert:

▸ Length, Mass, Temperature, Speed, Time, Area, Volume, Pressure, Energy, Power, Force, and many more ▸ Data Storage, Data Transfer, Frequency, Fuel Economy ▸ Cooking units, Numeral Systems, Color Codes, Typography ▸ AWG Wire Gauge, Torque, Luminance, Sound Level

Built-in Calculators:

▸ Currency Converter with live exchange rates ▸ Date Calculator — days between dates, add/subtract time ▸ BMI, Body Fat, Calorie Calculator ▸ Tip Calculator, Discount & Tax, Loan & Mortgage ▸ Percentage, Aspect Ratio, Ohm's Law, Power-Voltage-Current ▸ Hex/RGB/HSL Color Converter ▸ Roman Numerals, Fuel Cost, Speed-Distance-Time

Size Lookup Tables:

▸ Shoes (Men & Women), Tops, Pants, Ring Sizes ▸ Children's Clothing (Boys & Girls) ▸ Bra Sizes, Screw & Bolt Sizes

Why you'll love it:

◆ 100% offline — no internet required (except live currency rates) ◆ Conversion history — never lose a result ◆ Favorites — quick access to the categories you use most ◆ 7 languages — English, Deutsch, Español, Français, Italiano, Português, Nederlands ◆ Dark theme — easy on the eyes ◆ No ads. No tracking. No account needed. ◆ All your data stays on your device.

Whether you're a student, engineer, chef, traveler, or just need a quick conversion — Units - Conversion Calculator has you covered.

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