Unit Converters

The unit converters cover the everyday measurements you switch between most often: length, weight, temperature, area, volume, speed, fuel efficiency, data storage, pressure and currency. Each converter uses the ISO / NIST standard conversion factors so the numbers match those used by science and engineering references.

Currency conversions use indicative rates and are intended for quick estimates — for live FX-trade rates, check your bank or a real-time market source.

When to use these tools: Use these tools when shopping for goods listed in different units, travelling abroad, comparing apartment sizes in square feet versus square metres, or working through a science / engineering problem.

Tap any calculator below to load it in place. Every tool on this page is free, runs in your browser and does not need a sign-up.

Length Converter

Metres, kilometres, miles, feet, inches, yards and other length units.

Weight Converter

Kilograms, grams, pounds, ounces, tonnes and quintals.

Temperature Converter

Celsius, Fahrenheit, Kelvin and Rankine.

Area Converter

Square metres, square feet, acres, hectares, bigha, gunta and other land units.

Volume Converter

Litres, millilitres, cubic metres, gallons (US/UK), cups and fluid ounces.

Speed Converter

Kilometres per hour, miles per hour, metres per second, knots and feet per second.

Data Storage Converter

Bytes, KB, MB, GB, TB — both decimal (1000-based) and binary (1024-based) modes.

Currency Converter

Indicative currency conversions between INR, USD, EUR, GBP and other major currencies.

Fuel Efficiency Converter

km/L, mpg (US), mpg (UK) and L/100 km.

Pressure Converter

Pascal, kilopascal, bar, atm, psi and mmHg.

A note on accuracy

The numbers produced by these calculators are estimates based on the inputs you provide and the formulas shown in each tool's "How it is calculated" section. They are intended for planning, learning and quick checks — not as legal, medical, tax or investment advice. For decisions that have real financial, legal or health consequences, please consult a qualified professional. See our disclaimer for the full statement.