Free Unit Converters
Convert between metric and imperial units. Every converter includes the exact conversion factor and a common-values table you can scan at a glance.
Convert temperatures between Celsius and Fahrenheit. Type in either box for an instant result, and check the table for everyday reference points.
Convert centimeters to inches and back. One inch is exactly 2.54 cm, so the conversion is precise — type in either box for an instant result.
Convert grams to ounces and back — handy for cooking, baking, and parcels. Type in either box for an instant result.
Convert kilograms to pounds and back. Type in either box for an instant result, and use the table for common values at a glance.
Convert liters to US gallons and back. Type in either box for an instant result. This tool uses US gallons — imperial gallons are larger.
Convert meters to feet and back. Type in either box for an instant result, and use the table for common heights and distances.
Convert miles to kilometers and back. Type in either box for an instant result, and check the table for common running and driving distances.
Convert millimeters to inches and back. One inch is exactly 25.4 mm, so the result is precise — type in either box for an instant answer.
Convert speed between miles per hour and kilometers per hour. Type in either box for an instant result, and scan the table for common speed limits.
Convert area between square meters and square feet — useful for floor plans, rooms, and real estate. Type in either box for an instant result.
Convert body weight between stones and kilograms. One stone is 14 pounds, or about 6.35 kg. Type in either box for an instant result.