Unit Now - Unit Converter

Unit Now — the fast, precise unit converter and currency converter trusted for everyday life. Convert length, weight, volume, area, temperature, speed, pressure, data, and 30+ world currencies instantly.

108 units across 9 categories: cm, m, km, inch, foot, yard, mile, gram, kilogram, pound, ounce, liter, gallon, cup, Celsius, Fahrenheit, Kelvin, km/h, mph, knot, Mach, hPa, psi, atm, GB, TB, USD, EUR, JPY, GBP, and many more.

Why millions love Unit Now

- INSTANT CONVERSION — type a number and see every unit update in real time
- CURRENCY CONVERTER — 30 world currencies with live ECB exchange rates (PRO)
- BUILT-IN CALCULATOR — add, subtract, multiply, and divide right in the input field
- HIGH PRECISION — decimal math with configurable rounding, no unexpected results
- WORKS OFFLINE — convert units anywhere, no internet required
- DRAG TO REORDER — arrange units in your preferred order
- CONVERSION HISTORY — quickly reuse past calculations
- BILINGUAL — full English and Japanese support
- PRIVACY FIRST — no account, no tracking, minimal permissions
- LIGHTNING FAST — lightweight app that launches in under a second

Built for real tasks

Cooking and Baking — cups to mL, ounces to grams, Fahrenheit to Celsius
DIY and Woodworking — inches to cm, feet to meters, square feet to square meters
Fitness and Health — pounds to kilograms, stones to kg
Travel and Currency — miles to km, USD to EUR, JPY to GBP, gallons to liters
Science and Study — Kelvin, Pascal, Mach, nanometer, microgram
Tech and Networking — gigabytes to terabytes, megabits to megabytes
International Business — convert 30 currencies with daily-updated exchange rates

9 conversion categories

Length — km, m, cm, mm, inch, foot, yard, mile, nanometer, micrometer
Area — km2, m2, cm2, hectare, acre, square foot, square yard, square mile
Volume — liter, mL, gallon, quart, pint, cup, fluid ounce, cubic meter
Weight — kg, g, mg, pound, ounce, stone, tonne, carat, grain
Temperature — Celsius, Fahrenheit, Kelvin, Rankine, Reaumur, Delisle, Newton, Romer
Speed — m/s, km/h, mph, ft/s, knot, Mach (PRO)
Pressure — Pa, hPa, kPa, MPa, bar, atm, psi, mmHg, Torr (PRO)
Data — bit, byte, KB, MB, GB, TB, PB, Kbit, Mbit, Gbit (PRO)
Currency — USD, EUR, JPY, GBP, AUD, CAD, CHF, CNY, KRW, and 21 more (PRO)

Unit Now PRO

Upgrade to PRO to unlock Currency conversion with live exchange rates, plus Speed, Pressure, and Data categories — and remove all ads for a completely clean experience.

Languages: English, Japanese
Compatibility: iPhone, iPad

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Download Unit Now — convert 108 units and 30 currencies across 9 categories. Fast, precise, offline-ready.