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Unit Conversions

The unit conversions section of The Calculator Site. Listed below are converters for acceleration, area, energy, fuel consumption, length & distance, liquid volume, mass & weight, power, temperature, time, velocity.

scales weight icon

Kilograms to stones and lbs

Use the kilograms, stones and pounds conversion tool (kg, st and lbs) to carry out weight conversions. Conversion tables are also available.

scales weight icon 2

Kilograms to pounds

Convert between kilograms and pounds and ounces (kg, lbs and oz) using this calculator tool and conversion tables.

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Centimeters to feet & inches

Convert between centimeters, feet and inches (cm, ft and in) for height measurements.

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Meters to feet & inches

Convert between meters, feet and inches (m, ft and in). Height conversion charts are also available

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Watts to amps

Convert watts to amps for both alternating current (AC) and direct current (DC) flows.

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Other Popular Individual Converters

Individual conversions for specific units include: grams to pounds, centimeters to inches, cubic feet to gallons, cubic yards to tons, gallons to ounces, gallons to pounds, hertz to seconds, inches to cm, liters to ounces, ounces to pounds, stone to pounds, square feet to cubic feet, square feet to cubic yards, square meters to square feet.

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Acceleration Converter

Conversions: Centimeters / Sec. / Sec., Decimeters / Sec. / Sec., Dekameters / Sec. / Sec., Feet / Sec. / Sec., Gals, Hectometers / Sec. / Sec., Inches / Sec. / Sec., Kilometers / Hour / Sec., Meters / Sec. / Sec., Miles / Hour / Sec.

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Area Converter

Conversions: Acres, Ares, Barns, Hectares, Square Angstroms, Square Astronomical Units, Square Centimeters, Square Decimeters, Square Dekameters, Square Fathoms, Square Feet, Square Hectometers, Square Inches, Square Kilometers, Square Lightyears, Square Meters, Square Micrometers, Square Microns and more.

Individual conversions: Cents to square feet, Cents to square meters, Acres to square feet, Square inches to square feet, Hectares to acres and many more.

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Cooking Converter

Conversions: Use this cooking conversion tool to convert between units of weight and volume commonly used in cooking (cups, ounces, grams, kilograms, teaspoons, tablespoons and more).

Individual conversions: Baking Conversions, Cups to Grams, Cups to mL, Cups to Ounces, Ounces to mL, Pounds to Cups, Quarts to Cups, Teaspoons to mL

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Data Storage Converter

Conversions: Bits, Bytes, Gibibits, Gibibytes, Gigabits, Gigabytes, Kibibits, Kibibytes, Kilobits, Kilobytes, Mebibits, Mebibytes, Megabits, Megabytes, Petabits, Petabytes, Terabits, Terabytes and more.

Individual conversions: Kilobytes to gigabytes (kB to GB), Kilobytes to megabytes (kB to MB), Terabytes to gigabytes (TB to GB) and many more.

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Data Transfer Rate Converter

Conversions: Bits per second (b/s), Gigabits per second (Gb/s), Kilobits per second (kb/s), Kilobytes per second (kB/s), Megabits per second (Mb/s), Terabits per second (Tb/s) and more.

Individual conversions: Megabits per second to bits per second (Mb/s to b/s) and more.

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Energy Converter

Conversions: British Thermal Units, Calories (nutrition), Calories (th), Electron Volt, Ergs, Foot Pounds, Gigajoules, Joules, Kilocalories (th), Kilojoules, Kilowatt-Hour, Megajoules, Millijoules

Individual conversions: Inch-pounds to ft-lb, Newton-meters to foot-pounds.

fuel consumption icon

Fuel Consumption Converter

Conversions: Kilometers / Liter, Liters / 100 km, Miles / Gallon (UK), Miles / Gallon (US), Miles / Liter

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Gold Weight Converter

Convert between different units of weight for your gold and find out how much a gold bar weighs

height converter icon

Height Converter

Convert between: Centimeters, Feet and Inches

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Length and Distance Converter

Conversions: Angstroms, Astronomical Units, Centimeters, Chains, Decimeters, Dekameters, Fathoms, Feet, Furlongs, Gigameters, Hands, Hectometers, Inches, Kilometers, Light years, Meters, Micrometers, Microns, Miles, Milli-inches, Millimeters, Millimicrons, Nanometers, Nautical Miles, Parsecs, Picas, Points, Statute Miles, Twips, Yards

Individual conversions: cm to inches, inches to cm, mm to inches, feet to inches, steps to miles, 30 cm to inches, 50 cm to inches.

liquid volume icon

Liquid Volume Converter

Conversions: Barrels (oil), Barrels (UK), Barrels (US), Centiliters, Cubic Centimeters, Cubic Decimeter, Cubic Feet, Cubic Inch, Cubic Meters, Cubic Yards, Cups (International), Cups (UK), Cups (US), Deciliters, Dekaliters, Dram, Fluid Ounces (UK), Fluid Ounces (US), Gallons (UK), Gallons (US), Gills (UK), Hectoliters and more.

Individual conversions: Gallons to ounces, Liters to gallons, Liters to ounces, Liters to tons.

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Mass and Weight Converter

Conversions: Carats (metric), Centigrams, Decigrams, Dekagrams, Grains, Grams, Kilograms, Micrograms, Milligrams, Newtons, Ounces Avoir, Ounces Troy, PennyWeights, Pounds Avoir, Pounds Troy, Slugs, Stone (UK), Stone (US), Tonnes (metric ton), Tons (UK long ton), Tons (US short ton)

Individual conversions: Micrograms to milligrams, Micrograms to grams, Milligrams to grams, Ounces to troy ounces.

power icon

Power Converter

Conversions: Exawatts, Foot Pounds Per Minute, Foot Pounds Per Second, Horsepower, Joules Per Second, Kilowatts, Megawatts, Milliwatts, Volt Amperes, Watts

pressure icon

Pressure Converter

Conversions: Bars, Exapascals, Gigapascals, Hectopascals, Kilopascals, Megapascals, Millibars, Newtons / Square Centimeter, Newtons / Square Meter, Pascals, Petapascals, Pounds Per Square Inch, Terapascals

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Speed & Velocity Converter

Conversions: Centimeters / Hour, Centimeters / Minute, Centimeters / Second, Feet / Hour, Feet / Minute, Feet / Second, Kilometers / Hour, Kilometers / Minute, Kilometers / Second, Knot (UK), Knots, Meters / Hour, Meters / Minute, Meters / Second, Miles / Hour

temperature icon

Temperature Converter

Conversions: Celsius or Centigrade, Fahrenheit, Kelvin, Rankine, Reamur

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Time Converter

Conversions: Attoseconds, Days, Femtoseconds, Hours, Microseconds, Milliseconds, Minutes, Months, Nanoseconds, Picoseconds, Seconds, Shakes, Weeks, Years

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Water Weight Calculator

Conversions: Gallons, liters, pints, tablespoons to pounds, ounces, grams and kilograms (for water)

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Weight Converter

Convert between: Kilograms, stone, pounds, ounces, grams and more.

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Weight to Volume Converter

Conversions: Liquids such as petrol, oil, milk, vegetable oil and more. Materials such sa coconut, coffee, granite, tobacco and more. Metals such as copper, brass, bronze, tin and stainless steel. Woods such as mahogany, oak, pine and willow.

Please feel free to suggest any extra units and measures for the imperial and metric unit converters. Though all suggestions will be considered, I do not guarantee that all suggested units and measures will be added. You can contact me here.

The History of the Calculator

From abacus to iPhones, learn how calculators developed over time.