Skip to content
Omnikalc

Conversions

Length, weight, volume, temperature, cups to grams, energy, data size, large numbers and more: two-way unit converters with exact formulas and printable conversion charts.

Length converter

Type a length in any unit and read it at once in inches, feet, yards, miles, millimeters, centimeters, meters, kilometers and nautical miles.

Weight and mass converter

Type a weight in any unit and read it at once in ounces, pounds, stones, short and long tons, micrograms, milligrams, grams, kilograms and metric tonnes.

Temperature converter

Type a temperature in degrees Fahrenheit, degrees Celsius or kelvins and read the other two scales instantly, including negative values.

Volume converter

Type a volume in any unit and read it at once in teaspoons, tablespoons, cups, fluid ounces, pints, quarts and gallons (US and imperial), milliliters, liters and cubic units.

Area converter

Type an area in any unit and read it at once in square inches, square feet, square yards, acres, square miles, square centimeters, square meters, ares, hectares and square kilometers.

Speed converter

Type a speed in miles per hour, kilometers per hour, knots, meters per second or feet per second and read the other units instantly.

Time converter

Type a duration in any unit and read it at once in milliseconds, seconds, minutes, hours, days, weeks, months and years.

Pressure converter

Type a pressure in any unit and read it at once in psi, bar, pascals, hectopascals, kilopascals, megapascals, atmospheres, mmHg, inches of mercury, torr and kg/cm².

Fuel economy converter

Type a fuel economy in US mpg, UK mpg, liters per 100 km or kilometers per liter and compare cars from any country instantly.

Energy converter

Type an energy in any unit and read it at once in joules, kilojoules, megajoules, calories, kilocalories, watt-hours, kilowatt-hours, BTU, therms, foot-pounds and electronvolts.

Power converter

Type a power in any unit and read it at once in watts, kilowatts, megawatts, horsepower, metric horsepower, BTU per hour, tons of refrigeration and kilocalories per hour.

Data storage converter

Type a file or disk size in any unit and read it at once in bits, bytes, kilobytes, megabytes, gigabytes, terabytes, petabytes and their binary counterparts KiB, MiB, GiB and TiB.

Data rate converter

Type an internet or transfer speed in any unit and read it at once in bits per second, kbps, Mbps, Gbps and in bytes per second, kB/s, MB/s and GB/s.

Large numbers converter

Type an amount in thousands, millions, billions, trillions, lakhs or crores and read it at once in all the others, including the Indian numbering system.

Flour converter

Type an amount of all-purpose flour in cups, tablespoons, teaspoons, grams, ounces, pounds or kilograms and read it at once in every other measure, based on 125 g per US cup.

Sugar converter

Type an amount of granulated white sugar in cups, tablespoons, teaspoons, grams, ounces, pounds or kilograms and read it at once in every other measure, based on 200 g per US cup.

Butter converter

Type an amount of butter in sticks, cups, tablespoons, teaspoons, grams, ounces, pounds or kilograms and read it at once in every other measure. One US stick is 113 g, or 8 tablespoons.