Instant Converter & Calc

Convert any unit instantly. Just type - results appear as you type. Offline.

Type a value with any unit - get every relevant conversion instantly. No menus, no dropdowns, no extra taps.

Instant Converter is the fastest way to convert between units. Just start typing - "25 kg", "72 F", "5.5 miles" - and see all related conversions appear in real time. The app recognizes abbreviations, full unit names, and common shorthand, so you never need to browse through categories or pick units from a list.

INSTANT RESULTS Start typing and results appear immediately. No loading screens, no "Convert" button - just instant answers grouped by category for easy scanning.

16 CONVERSION CATEGORIES

• Length - km, miles, feet, inches, meters, yards, and more
• Weight - kg, pounds, ounces, grams, tonnes, stones
• Temperature - Celsius, Fahrenheit, Kelvin
• Volume - liters, gallons, cups, fluid ounces, tablespoons
• Area - m², ft², acres, hectares
• Speed - km/h, mph, m/s, knots
• Time - seconds, minutes, hours, days, weeks, years
• Pressure - Pa, bar, psi, atm, mmHg
• Energy - joules, calories, kWh, BTU
• Power - watts, horsepower, BTU/h
• Data Storage - bytes, KB, MB, GB, TB (SI and IEC)
• Fuel Efficiency - L/100km, mpg (US/UK), km/L
• EV Efficiency - kWh/100km, miles/kWh, km/kWh
• Torque - N·m, ft·lb, kgf·m
• Force - newtons, pounds-force, dynes, kgf
• Currency - 30+ currencies with daily rates from the European Central Bank

LIVE CURRENCY RATES Exchange rates are fetched daily from the European Central Bank via frankfurter.dev. No API key needed, no account required. Cached locally so you always have recent rates even when offline.

BUILT-IN CALCULATOR Need to calculate before converting? There's a full calculator with memory functions (M+, M-, MR, MC), history of your last 30 calculations, and a one-tap button to send the result straight to the converter.

FAVORITES & RECENTS Star your most-used conversions for quick access. Your last 10 conversions are saved automatically so you can pick up right where you left off.

LIGHT & DARK THEMES Choose between a clean light theme with blue accents or a dark theme with warm orange accents. Or let the app follow your system setting.

PRIVACY FIRST

• No ads - ever
• No tracking or analytics
• No data collection
• No account required
• No subscription - one-time purchase, everything included

All your data stays on your device. The only network request the app ever makes is fetching currency rates - and even that sends zero personal information.

WORKS EVERYWHERE Available on iPhone, iPad, Mac, and web. Same fast experience across all your devices.

FULLY OFFLINE Every conversion except currency works without an internet connection. Currency rates are cached locally, so even those work offline with the last fetched rates.

Whether you're cooking, traveling, studying, shopping abroad, or working on a project - just type what you need and get the answer. No clutter, no confusion, no unnecessary steps.

Instant Converter - type once, see every result.