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Instant, accurate conversions between any unit of measurement.
16 free tools - no signup required
Our most-used converters - start here
Convert between meters, feet, inches, kilometers, miles, and more.
Use free⚖️Convert between kilograms, pounds, ounces, grams, and tons.
Use free🌡️Convert between Celsius, Fahrenheit, and Kelvin instantly.
Use free🌍Convert times between timezones and see the current time worldwide.
Use freePick from 16 free converters below.
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Convert between meters, feet, inches, kilometers, miles, and more.
Convert between kilograms, pounds, ounces, grams, and tons.
Convert between square feet, square meters, acres, hectares, and more.
Convert between liters, gallons, cups, milliliters, and fluid ounces.
Convert between mph, km/h, knots, m/s, and other speed units.
Convert between PSI, bar, atm, pascal, and other pressure units.
Convert between seconds, minutes, hours, days, weeks, and years.
Convert times between timezones and see the current time worldwide.
Convert between cups, tablespoons, teaspoons, milliliters, and grams for recipes.
Convert numbers to their written word form in English and other languages.
Convert CSV data to JSON format instantly. Paste or upload CSV and get formatted JSON output.
Convert HTML to clean Markdown. Handles headings, links, images, lists, tables, and code blocks.
Convert between 150+ world currencies with real-time exchange rates updated hourly.
Learn how to get the most out of these tools
How to get the best exchange rates when traveling. Avoid airport kiosks, hidden fees, and tourist traps.
Read guideConvert times between time zones instantly. Find the best meeting time for your remote team.
Read guideConvert cups to grams, tablespoons to ml, and every other kitchen measurement. Free cooking converter.
Read guideHow big is a gigabyte? How many photos fit in 1 TB? Simple explanation of data storage units with real-world examples.
Read guideAll conversions use exact conversion factors from the International System of Units (SI). Results are shown to 6 decimal places for precision.
Yes. Our cooking converter handles cups, tablespoons, teaspoons, milliliters, fluid ounces, and more. Perfect for scaling recipes.
Yes. The timezone converter automatically accounts for DST based on the date you enter and the selected timezones.
Absolutely. Every converter supports both metric and imperial units. Convert miles to kilometers, pounds to kilograms, Fahrenheit to Celsius, and more.
Convert between units of measurement instantly. Length, weight, temperature, speed, volume, area, data storage, time, energy, pressure, and cooking measurements. All conversions use exact SI conversion factors.