Unit Converter Calculator App

Unit Converter & Calculator is an all-in-one unit converter, currency converter and scientific calculator. Convert length, weight, temperature, area, volume, speed, time, data and more in one tap, check live exchange rates, and solve math with a full scientific calculator, all in one fast, clean app.

Whether you are cooking, travelling, studying, working out or working on a project, get the answer in seconds.

CALCULATOR: STANDARD + SCIENTIFIC

Opens in a simple standard calculator, switch to scientific with one tap (your choice is remembered)
Standard: + − × ÷, percent, instant live result
Scientific adds powers, square root, factorial, brackets, π and e
Trigonometry: sin, cos, tan and their inverses, with DEG / RAD switch
Logarithms (ln, log)
Copy the answer with one tap
UNIT CONVERTER

Instant results as you type
One-tap swap between units
Remembers your last selected units for every category
Core conversions work offline
CURRENCY CONVERTER

Live exchange rates, updated daily
25+ major currencies: USD, EUR, GBP, INR, JPY, CAD, AUD, CNY, BRL, MXN, KRW, AED and more
Cached rates keep working when you are offline
POPULAR CONVERSIONS

km to miles, miles to km
lbs to kg, kg to lbs
Celsius to Fahrenheit, Fahrenheit to Celsius
cups to mL, gallons to liters
feet to meters, inches to cm
MB to GB, GB to TB
USD to INR, EUR to USD, GBP to USD
CATEGORIES

Calculator (Standard and Scientific)
Live Currency
Length
Weight
Temperature
Area
Volume
Speed
Time
Data
Energy
Angle
Power
Pressure
UNITS SUPPORTED

Length: mm, cm, m, km, in, ft, yd, mi
Weight: mg, g, kg, t, oz, lb, st
Temperature: °C, °F, K
Area: mm², cm², m², ha, km², in², ft², yd², ac, mi²
Volume: mL, L, cm³, m³, gal, qt, pt, cup, fl oz
Speed: m/s, km/h, mph, knots
Time: ms, s, min, hr, day, week
Data: bit, B, KB, MB, GB, TB
Energy: J, kJ, cal, kcal, Wh, kWh
Angle: deg, rad, grad
Power: W, kW, MW, hp
Pressure: Pa, kPa, bar, atm, psi, mmHg
MADE FOR EVERYONE

Students: homework, physics, chemistry and maths
Travellers: currency, distance and temperature
Home cooks: cups, ounces, millilitres and grams
Fitness users: weight, distance and speed
Engineers, developers and IT users: data, power, pressure and energy
Why choose Unit Converter & Calculator?

Three tools in one app: unit converter, currency converter and scientific calculator
Fast, lightweight and easy to read
Light and dark mode
Core tools work without internet
Download Unit Converter & Calculator today and convert, calculate and compare with confidence.

Recent changes:
NEW
- Calculator is now the first tab and opens in Standard mode.
- Switch to Scientific mode with one tap: trig with DEG/RAD, logarithms, powers, square root, factorial, and brackets.
- See a live result preview as you calculate.
- Check Live Currency rates and convert across 12 unit categories.
- Your calculator mode and selected units are remembered.
- Bug fixes and stability improvements.