Free Online Unit and Currency Converter
Convert currencies and units quickly with ConvertX. Use it for USD to LKR, kilometers to miles, kilograms to pounds, Celsius to Fahrenheit, digital storage, fuel economy, and more.
Fuel Cost Calculator
Check today's Sri Lanka fuel prices instantly, estimate how many liters you can fill for your budget, and see how much a refill will cost, or estimate your vehicle's fuel economy from money spent and distance travelled.
Fuel tools for Sri Lanka
Explore our dedicated fuel pages for quick answers on petrol and diesel costs, liters for your budget, and travel distance estimates in Sri Lanka.
What ConvertX supports
ConvertX supports unit categories like length, weight, temperature, area, volume, speed, time, digital storage, pressure, energy, and currency conversion.
Popular conversions
Why use this tool?
ConvertX is designed for students, developers, travelers, engineers, and general users. It works on mobile, tablet, and desktop, and gives fast results with a clean interface.
How it works
Choose a category, enter a value, select the units you want to convert from and to, and get the result instantly. For currency conversion, the tool uses live exchange-rate data.