Free Converters Online
Convert lengths, weights, temperature, area, volume, speed, currency, colors, number bases, and timestamps. Most tools run in your browser; a few AI tools send the image to a third-party service.
Universal Unit Converter
Convert between length, weight, temperature, area, volume, speed, digital storage, and time.
Currency Converter & Exchange Calculator
Convert currencies between USD, EUR, GBP, INR, JPY, CAD, AUD, AED, SAR, BDT, PKR, and CNY.
Length & Distance Converter
Convert between meters, kilometers, centimeters, millimeters, miles, yards, feet, and inches.
Weight & Mass Converter
Convert between kilograms, grams, milligrams, pounds, ounces, tons, and stones.
Temperature Converter
Convert between Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine (°R).
Area & Land Converter
Convert between square meters, square feet, acres, hectares, square yards, and bigha.
Volume & Capacity Converter
Convert between liters, milliliters, gallons, cubic meters, cups, and fluid ounces.
Speed & Velocity Converter
Convert between km/h, mph, meters/second, knots, and feet/second.
Data Storage Converter
Convert between Bytes, KB, MB, GB, TB, PB, KiB, MiB, and GiB.
Number Base & Radix Converter
Convert numbers between Binary (Base 2), Decimal (Base 10), Hexadecimal (Base 16), and Octal (Base 8).
Color Code Converter
Convert color codes between HEX, RGB, HSL, RGBA, and CMYK with live preview.
Unix Timestamp & Epoch Converter
Convert Unix epoch timestamps to human-readable UTC and local date formats.
Roman Numeral Converter
Convert Arabic numbers to Roman numerals and Roman numerals to numbers.