UnitFlowPro

UnitFlow – Unit Converter

Say goodbye to Googling "how many feet in a kilometer" ever again.

UnitFlow is the fastest, cleanest unit converter on iOS. Type a number in any unit and watch every other unit update in real time — instantly, beautifully, and without a single extra tap.

Real-Time Conversions Just start typing. Every unit on screen updates live as you type — no "Convert" button, no waiting. It just works.

15+ Powerful Categories Everything you'll ever need in one place: • Length — mm, cm, m, km, in, ft, yd, mi • Weight — mg, g, kg, tonnes, oz, lb, st, tons • Temperature — Celsius, Fahrenheit, Kelvin • Volume — mL, L, m³, fl oz, cups, pints, quarts, gallons • Speed — m/s, km/h, mph, knots, ft/s • Area — mm², cm², m², hectares, km², ft², acres, mi² • Time — milliseconds all the way up to years • Pressure — Pa, kPa, bar, PSI, atm, mmHg • Energy — J, kJ, cal, kcal, Wh, kWh, BTU • Data — bits, bytes, KB, MB, GB, TB

Beautifully Designed A stunning dark interface with color-coded units — green for Metric, orange for Imperial — so you always know exactly what you're looking at. Clean, minimal, and distraction-free.

Smart Number Handling Handles decimals, negatives, tiny numbers, and enormous values with ease. No rounding surprises.

Ad-Free Option Love the app? Remove ads forever with a single one-time purchase. No subscriptions. Ever.

Whether you're a student, engineer, chef, traveler, or just someone who refuses to do math in their head — UnitFlow has you covered.

Download free. Convert everything.