Unit Converters
7 free tools to convert length, weight, speed, and more
Unit converters solve the everyday mismatch between measurement systems — converting a recipe from cups to milliliters, checking a speed limit in miles instead of kilometers, or turning a temperature from Celsius to Fahrenheit. Every converter below calculates instantly in your browser, with accurate, standard conversion factors.
🔄 All Unit Converters
Pick a tool below — every calculator opens instantly, no sign-up required.
Area Converter
Convert between square meters, square feet, acres, hectares, and more.
Open Tool →Length Converter
Convert between meters, feet, inches, miles, and other length units.
Open Tool →Speed Converter
Convert speeds between km/h, mph, m/s, and knots.
Open Tool →Temperature Converter
Convert temperatures between Celsius, Fahrenheit, and Kelvin.
Open Tool →Time Converter
Convert between seconds, minutes, hours, days, and weeks.
Open Tool →Volume Converter
Convert between liters, gallons, cups, milliliters, and more.
Open Tool →Weight & Mass Converter
Convert between kilograms, pounds, ounces, and other mass units.
Open Tool →No tools match your search. Try a different word.
Why Use Browser-Based Unit Converters?
Unit conversion is one of those tasks that's easy to get slightly wrong doing mental math, especially between metric and imperial systems. EverydayTools' converters give an exact answer in seconds, without needing to remember a formula.
Each converter runs locally using standard, well-established conversion factors, so results are consistent and nothing you enter is sent to a server. That makes these tools a reliable everyday reference for cooking, travel, fitness, and schoolwork alike.
Frequently Asked Questions
Yes, every converter in this hub is completely free, with no sign-up and no usage limits.
Yes, each converter uses standard, internationally recognized conversion factors for consistent, accurate results.
Yes, every converter supports both metric and imperial units, so you can convert freely between the two systems.
No. All conversions run locally in your browser, so nothing you enter is transmitted to a server.