Metrix: Unit Converter

You're packing a suitcase and need to know if 23 kg is over the limit. You're halving a recipe and 350 g of flour means nothing in cups. You're pricing something abroad and want it in dollars without three taps.

Metrix converts as you type. No buttons. No waiting. Every row updates with every digit.

14 categories. 80+ units. 80+ currencies refreshed daily.

International sizes, instantly convert shoe, clothing, ring and bra sizes between US, EU, UK and Japan. No more guessing your size when shopping abroad.

Common conversions, instantly: kg to lbs, cm to inches, celsius to fahrenheit, kilometers to miles, meters to feet, grams to ounces, grams to cups, liters to ml, mm to inches, EUR to USD, GBP to USD. Type the number, every related unit updates the moment you do.

Free, always
• Length: cm, inches, feet, meters, miles, yards, nautical miles
• Weight: kg, grams, pounds, ounces, stone, milligrams
• Temperature: Fahrenheit, Celsius, Kelvin
• Time: seconds, minutes, hours, days, weeks, months, years

• Currency: 80+ currencies, refreshed daily, works offline
• Sizes: shoe, clothing, ring and bra (US, EU, UK, Japan)
• Volume: liters, milliliters, gallons, pints, quarts
• Cooking: cups, tbsp, tsp. Real fractions: see 1 ¾ cups, not 1.7500
• Area: square feet, square meters, acres, hectares
• Speed: mph, km/h, knots, m/s
• Torque: newton-meters, foot-pounds, inch-pounds, kgf·m
• Energy: joules, kJ, calories, kWh, BTU
• Pressure: Pascal, kPa, bar, PSI, atm, mmHg
• Digital Storage: bytes, KB, MB, GB, TB
• Favorites: pin the conversions you use every day
• History: every result saved, tap any row to restore

What makes it different

Type a calculation in any cell. 4.5 × 3.2 right where you'd type the number, see the answer in square feet instantly. No separate calculator app.

Smart paste. Copy "5 feet" or "72.5 kg" from anywhere. Tap Paste. Metrix sets the unit AND the value in one move.

Compound formats. See height as "5 ft 10 in" or weight as "7 lb 3 oz" alongside the decimal. The way people actually read measurements.

Currency that knows where you are. Open Currency anywhere in the world and your home currency is at the top. House icon marks it. Tap any other to set a new home.

Customize everything. Reorder categories. Hide ones you'll never use. Reorder units inside any category. Make Metrix yours in 30 seconds.

Locale-aware. Type 2,5 in Germany or 2.5 in the US, Metrix understands both. Numbers render in your local format (1.234,56 vs 1,234.56).

iPhone and iPad. Native iPad layout with sidebar + always-on calculator-style numpad. iPhone uses the system keyboard with paste + operators above it.

One purchase. No subscription. No ads. No tracking. No accounts. Works fully offline (currency uses cached rates when disconnected).

Who it's for
• Travelers checking luggage, prices, and clothing sizes abroad
• Cooks scaling recipes between metric and imperial
• Engineers, students, and runners who switch systems all day
• Anyone tired of asking Google "how many feet in a meter" for the hundredth time