Conversions
Convert between the units people actually search for — centimeters and inches, kilograms and pounds, Celsius and Fahrenheit, miles and kilometers — with the exact, cited factors shown and the regional convention (US vs UK gallon, US vs metric cup) stated plainly. No rounding surprises, no guessing which gallon you got.
- ConversionsLiveCM to Inches ConverterConvert centimeters to inches and back. 1 inch equals 2.54 cm exactly, so the converter divides centimeters by 2.54 to give inches.
- ConversionsLiveKG to Lbs ConverterConvert kilograms to pounds and pounds to kilograms. One kilogram is about 2.2046 pounds, based on the exact 1 lb = 0.45359237 kg definition.
- ConversionsLiveFeet to Meters ConverterConvert feet to meters and meters to feet. One foot is exactly 0.3048 meters, so the converter multiplies feet by 0.3048 to give meters.
- ConversionsLiveMiles to Kilometers ConverterConvert miles to kilometers and kilometers to miles. One mile is exactly 1.609344 km, so the converter multiplies miles by 1.609344.
- ConversionsLiveMM to Inches ConverterConvert millimeters to inches and inches to millimeters. One inch is exactly 25.4 mm, so the converter divides millimeters by 25.4.
- ConversionsLiveOunces to Grams ConverterConvert ounces to grams and grams to ounces. One avoirdupois ounce is about 28.35 grams, so the converter multiplies ounces by 28.35.
- ConversionsLiveYards to Meters ConverterConvert yards to meters and meters to yards. One yard is exactly 0.9144 meters, so the converter multiplies yards by 0.9144.
- ConversionsLivePounds to Stone ConverterConvert pounds to stone and stone to pounds. One stone is exactly 14 pounds, so the converter divides pounds by 14.
- ConversionsLiveLiters to Gallons ConverterConvert liters to US gallons and gallons to liters. One US gallon is about 3.785 liters. UK gallon users should note the imperial gallon is larger.
- ConversionsLiveML to Cups ConverterConvert milliliters to US customary cups and back. One US customary cup is about 236.6 mL; the legal and metric cups differ slightly.
- ConversionsLiveMPH to KM/H ConverterConvert miles per hour to kilometers per hour and back. One mph is about 1.609 km/h, the same ratio that converts miles to kilometers.
- ConversionsLiveSquare Feet to Square Meters ConverterConvert square feet to square meters and back. One square foot is about 0.0929 m², the square of the 0.3048 m foot.
- ConversionsLiveAcres to Square Feet ConverterConvert acres to square feet and back. One acre is exactly 43,560 square feet, so the converter multiplies acres by 43,560.
- ConversionsLiveTime Converter (Hours to Minutes)Convert hours to minutes and minutes to hours. One hour is exactly 60 minutes, so the converter multiplies hours by 60.
- ConversionsLiveData Storage Converter (GB to MB)Convert gigabytes to megabytes and back using the decimal (SI) convention, where 1 GB = 1000 MB. The binary 1024 interpretation is explained too.
- ConversionsLiveFahrenheit to Celsius ConverterConvert between Fahrenheit, Celsius, and Kelvin. °C = (°F − 32) × 5/9 and °F = °C × 9/5 + 32, with Kelvin as °C + 273.15.
- ConversionsLiveRoman Numeral ConverterConvert numbers to Roman numerals and Roman numerals to numbers, from 1 (I) to 3999 (MMMCMXCIX), using standard subtractive notation.
- ConversionsLiveMM to Inch Fraction ConverterConvert millimeters to inches as a tape-measure fraction. 1 inch is exactly 25.4 mm; results round to the nearest 1/16 inch with the exact decimal shown too.