Converters
17 unit and data converters for length, weight, temperature, currency, time zones, cooking, shoe sizes, angles, and more.
Unit conversion is one of the most searched categories on the internet — from travelers converting miles to kilometers, to engineers switching between metric and imperial measurements, to students figuring out temperature scales for science homework.
Our converters give you instant, accurate results for length, weight, temperature, data sizes, speed, volume, area, time, number bases, energy, pressure, and fuel economy. Every conversion uses standard, well-established factors, and the tools work on any device with no installation needed.
Available Tools
Length Converter
Convert between metric and imperial length units.
Weight Converter
Convert kilograms, pounds, ounces, grams, and stones.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin.
Data Size Converter
Convert between bits, bytes, KB, MB, GB, and TB.
Speed Converter
Convert between mph, km/h, m/s, knots, and Mach.
Volume Converter
Convert between liters, gallons, cups, milliliters, and more.
Area Converter
Convert between square meters, acres, hectares, and more.
Time Converter
Convert between seconds, minutes, hours, days, and years.
Number Base Converter
Convert between binary, octal, decimal, and hexadecimal.
Energy Converter
Convert between joules, calories, kWh, and BTU.
Pressure Converter
Convert between PSI, bar, atm, Pascal, and mmHg.
Fuel Economy Converter
Convert between MPG, L/100km, and km/L.
Currency Converter
Convert between 27 major world currencies with reference rates.
Time Zone Converter
Convert dates and times between any two time zones.
Cooking Measurement Converter
Convert between cups, tablespoons, ounces, grams, and more.
Shoe Size Converter
Convert shoe sizes between US, EU, UK, and centimeters.
Angle Converter
Convert between degrees, radians, gradians, and more.
Who uses these tools?
- Travelers
- Engineers
- Students
- Programmers
- General users
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Check out our guides and comparisons for step-by-step tutorials, implementation choices, and workflow tradeoffs related to converters.
How to Convert Between Metric and Imperial Units
A practical guide to converting length, weight, temperature, and volume between metric and imperial systems with quick mental shortcuts.
How to Convert Celsius to Fahrenheit and Back
Convert temperatures correctly for weather, cooking, schoolwork, and travel with simple formulas and a faster browser tool workflow.
How to Convert Time Zones for Meetings and Travel
Plan meetings and trips across time zones without mistakes by checking offsets, daylight saving changes, and local date rollover.
Timezone Converter vs Time Converter
Convert meeting times across cities or change hours, minutes, and seconds within the same timezone. The correct tool depends on the kind of time problem you have.
Cooking Converter vs Weight Converter
Convert recipe units like cups and tablespoons or switch between grams, ounces, kilograms, and pounds for precise weight measurements.