Unit Converter Sci - UnitPro

UnitPro is a complete unit converter, currency converter and measuring toolkit — 25 categories, 171 units, 98 world currencies, Scientific Calculator and 18 cryptocurrencies in one offline-first app.

▪ EVERY UNIT YOU NEED
Length, weight, temperature, area, volume, speed, time, data storage, pressure, energy, power, angle, frequency, fuel economy, force, torque, electric current, voltage, resistance, illuminance, radiation, flow rate, density and typography. Enter a number once and watch every unit in the category convert at the same time.

▪ SOUTH ASIAN LAND & GOLD UNITS
Most converters leave these out. UnitPro has Marla, Kanal, Bigha, Guntha, Cent and Gaj (square yard) for land, plus Tola, Masha, Ratti, Pao, Seer and Maund (Mann) for weight — and a gold purity converter for 24K, 22K, 21K, 18K, 14K and 10K.

▪ LIVE CURRENCY & CRYPTO RATES
98 world currencies including PKR, INR, BDT, USD, EUR, GBP, SAR, AED and 18 cryptocurrencies — Bitcoin (BTC), Ethereum (ETH), Tether (USDT), BNB, Solana (SOL), XRP, Cardano (ADA) and Dogecoin (DOGE). Rates are cached on your phone, so conversions keep working with no internet. 7-day, 1-month and 1-year rate charts.

▪ SCIENTIFIC CALCULATOR
sin, cos, tan, ln, log, powers, roots, brackets, degrees and radians, plus a 2D function grapher and a full expression history.

▪ EVERYDAY CALCULATORS
Loan and EMI, discount with sales tax (GST / VAT), tip split, fuel cost per trip, BMI, and date & age duration.

▪ SMART MEASURING TOOLS
On-screen ruler in millimetres and inches with a full-screen mode, compass and bubble level, sound level meter in decibels, and a camera measuring tool.

▪ SCAN A LABEL WITH THE CAMERA
Point the camera at a recipe or a packet and UnitPro reads the printed measurement — "1.5 lbs", "350°F", "680 g" — then converts it for you.

▪ SEARCH IN PLAIN WORDS
Type or speak "10 km to miles", "72 f to c" or "5 marla in gaj" and get the answer straight away, without choosing a category first.

▪ HOME SCREEN WIDGET & QUICK SETTINGS TILE
Keep your currency pair on the home screen, or open the converter from the notification shade while you are in any other app.

▪ BUILT FOR EVERY PHONE
Dark mode, Material You colours, and a download under 5 MB that runs smoothly on low-end devices.

QUESTIONS PEOPLE ASK

Does UnitPro work offline?
Yes. Every unit conversion works with no internet. Currency and crypto use the last saved rates when you are offline.

How many units does it convert?
171 units across 25 categories.

Can it convert Marla to square feet or Kanal to Marla?
Yes. Marla, Kanal, Bigha, Guntha, Gaj and Cent are all built in, alongside acres, hectares and square metres.

Does it convert Tola to grams?
Yes — Tola, Masha, Ratti, Pao, Seer and Maund, plus a karat purity converter for gold.

Does it show Bitcoin and crypto prices?
Yes, 18 cryptocurrencies with 7-day, 1-month and 1-year charts.

Is there a scientific calculator?
Yes, with trigonometry, logarithms, powers, roots and a 2D grapher.

Looking for a unit converter pro version? Everything in UnitPro is free — no paid tier, no locked units, no ads in the way.

No account needed. Nothing you convert leaves your phone.