# Unit Reference ### General Units {% tabs %} {% tab title="Time" %} | Name | Symbol | Definition | | ------------ | ------ | ----------------- | | Nanoseconds | ns | 1 second = 1G ns | | Microseconds | µs | 1 second = 1M µs | | Milliseconds | ms | 1 second = 1k ms | | Second | s, sec | Base unit of time | | Minute | min | 60 seconds | | Hour | h, hr | 60 minutes | | Day | day | 24 hours | | Week | wk | 7 days | | Month | mo | 30.436875 days | | Year | yr | 365.2425 days | | {% endtab %} | | | {% tab title="Length" %} **Metric** | Unit Name | Unit Symbol | Definition | | ----------- | ----------- | -------------------------------------------- | | Nanometers | nm | One billionth of a meter | | Micrometers | µm | One millionth of a meter | | Millimeters | mm | One thousandth of a meter | | Centimeters | cm | One hundredth of a meter | | Decimeters | dm | One tenth of a meter | | Meters | m | The base unit of length in the metric system | | Kilometers | km | 1000 meters | **Imperial** | Unit Name | Unit Symbol | Definition | | --------- | ----------- | --------------------- | | Furlongs | fur | 1 furlong = 220 yards | | Miles | mi | 1 mile = 1,760 yards | | Yards | yd | 1 yard = 3 feet | | Feet | ft or ' | 1 foot = 12 inches | | Inches | " | | **Space & Sea** | Unit Name | Unit Symbol | Definition | | -------------- | ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------ | | Fathoms | ftm | A unit of length equal to 6 feet (1.8288 meters), commonly used to measure the depth of water. | | Nautical Miles | NM | A unit of distance used in maritime and air navigation, equal to one minute of latitude or approximately 1.15078 miles (1.852 kilometers). | | Light Years | ly | A unit of astronomical distance equivalent to the distance that light travels in one year, about 5.88 trillion miles (9.46 trillion kilometers). | | {% endtab %} | | | {% tab title="Area" %} **Metric** | Unit Name | Unit Symbol | Definition | | ------------------ | -------------- | ---------------------------------------------- | | Square nanometers | nm², nm^2, nm2 | Area of a square with sides of one nanometer. | | Square micrometers | µm², µm^2, µm2 | Area of a square with sides of one micrometer. | | Square millimeters | mm², mm^2, mm2 | Area of a square with sides of one millimeter. | | Square centimeters | cm², cm^2, cm2 | Area of a square with sides of one centimeter. | | Square meters | m², m^2, m2 | Area of a square with sides of one meter. | | Square kilometers | km², km^2, km2 | Area of a square with sides of one kilometer. | **Imperial** | Unit Name | Unit Symbol | Definition | | ------------- | -------------------- | --------------------------------------------------------------- | | Square Inches | in², sqin, in^2, in2 | A unit of area equal to a square measuring 1 inch on each side. | | Square Feet | ft², sqft, ft^2, ft2 | A unit of area equal to a square measuring 1 foot on each side. | | Square Yard | yd², sqyd, yd^2, yd2 | A unit of area equal to a square measuring 1 yard on each side. | | Square Mile | mi², sqmi, mi^2, mi2 | A unit of area equal to a square measuring 1 mile on each side. | **Land** | Unit Name | Unit Symbol | Definition | | ------------ | ----------- | --------------------------------------------------------------------------- | | Ares | a | A metric unit of area equal to 100 square meters. | | Hectare | ha | A metric unit of area equal to 10,000 square meters. | | Acre | ac | A unit of area commonly used in the US and UK, equal to 43,560 square feet. | | {% endtab %} | | | {% tab title="Volume" %} **Metric** | Unit Name | Unit Symbol | Definition | | ----------------- | ----------- | ------------------------------------- | | Milliliters | mL | 1 mL = 1e-3 liters | | Liters | L | Base unit for measuring liquid volume | | Kiloliters | kL | 1 kL = 1e3 liters | | Megaliters | ML | 1 ML = 1e6 liters | | Cubic Micrometers | µm³ | 1 µm³ = 1e-18 cubic meters | | Cubic Millimeters | mm³ | 1 mm³ = 1e-9 cubic meters | | Cubic Centimeters | cm³ | 1 cm³ = 1e-6 cubic meters | | Cubic Kilometers | km³ | 1 km³ = 1e9 cubic meters | | Cubic Meters | m³ | Base unit for measuring volume | | Metric Cups | cup | 1 cup = 250 milliliters | **Imperial** | Unit Name | Unit Symbol | Definition | | ------------ | ----------------------- | ---------------------------------------------------------------- | | Cubic Inches | in³, in3, in^3 | A measure of volume equivalent to a cube with edges of one inch. | | Cubic Feet | ft³, cuft, ft3, ft^3 | A measure of volume equivalent to a cube with edges of one foot. | | Cubic Yards | yd³, cuyd, yd3, yd^3 | A measure of volume equivalent to a cube with edges of one yard. | | Cubic Miles | mi³, mi3, mi^3, miles^3 | A measure of volume equivalent to a cube with edges of one mile. | **US Customary** | Unit Name | Unit Symbol | Definition | | ------------ | ----------- | -------------------------------------------- | | Gallons | gal | A unit of liquid capacity equal to 4 quarts. | | Quarts | qt | A unit of liquid capacity equal to 2 pints. | | Tablespoons | tbsp | A unit of volume equal to 3 teaspoons. | | Teaspoons | tsp | A unit of volume often used in cooking. | | Cups | cup | A unit of volume equal to 8 fluid ounces. | | Pints | pint | A unit of volume equal to 16 fluid ounces. | | Fluid ounces | fl oz | A unit of volume used for liquid measures. | {% hint style="info" %} In Soulver's Region Settings you can choose whether US customary or imperial measurements are used for these volume units. Note that a "cup" is always the US customary cup. Use "metric cup" for the cup unit commonly used in Australia, NZ and Canada (250ml). {% endhint %} **Other** | Unit Name | Unit Symbol | Definition | | ------------ | ----------- | ---------------------------------------------------------------------------------------------------------------------------------------- | | Bushels | bsh | A unit of volume typically used for dry goods | | Acre feet | af | A volume unit, typically used for large-scale water resources, defined as the volume of one acre of surface area to a depth of one foot. | | {% endtab %} | | | {% tab title="Mass" %} **Metric** | Unit Name | Unit Symbol | Definition | | ----------- | ----------- | ---------------------------------------------------------------- | | Nanogram | ng | A unit of mass equal to one billionth of a gram. | | Microgram | mcg | A unit of mass equal to one millionth of a gram. | | Milligram | mg | A unit of mass equal to one thousandth of a gram. | | Gram | g | A unit of mass equal to one thousandth of a kilogram. | | Kilogram | kg | The base unit of mass in the International System of Units (SI). | | Metric Tons | t | A unit of mass equal to 1,000 kilograms. | **Imperial** | Unit Name | Unit Symbol | Definition | | ---------- | ----------- | ------------------------------------------------------------------------------ | | Ounces | oz | A unit of weight equal to 1/16th of a pound (lb). | | Pounds | lb | A unit of weight by which various items are measured, equal to 16 ounces (oz). | | Stones | st | A unit of weight equal to 14 pounds (lb). | | Short Tons | ton | A unit of weight equal to 2,000 pounds (lb). | **Precious Metals** | Unit Name | Unit Symbol | Definition | | ------------ | ----------- | ------------------------------------------------------------------------------------------ | | Ounces Troy | oz t | A unit of imperial measure used for weighing precious metals, equivalent to 31.1035 grams. | | Carats | ct | A unit of mass used for gemstones, equivalent to 200 milligrams or 0.2 grams. | | {% endtab %} | | | {% tab title="Speed" %} | Unit Name | Unit Symbol | Definition | | ------------------- | ----------- | --------------------------------------------------------------------------- | | Meters per second | m/s | A unit of speed describing the distance in meters traveled in one second. | | Miles per hour | mph | A unit of speed expressing the number of statute miles covered in one hour. | | Kilometers per hour | km/h | A unit of speed defining the number of kilometers traveled in one hour. | | Knots | kn | A unit of speed equal to one nautical mile per hour. | | {% endtab %} | | | | {% endtabs %} | | | ### Math & Science Units {% tabs %} {% tab title="Angle" %} | Unit Name | Unit Symbol | Definition | | --------- | ----------- | ---------------------------------------------------------------------------------------------------------- | | Radians | rad | The angle subtended at the center of a circle by an arc whose length is equal to the radius of the circle. | | Degrees | ° | A unit of angle measurement equal to 1/360 of a full rotation. | {% hint style="info" %} Note that trigonometric functions assume radians by default. sin (90) = 0.8939966636 sin (90 degrees) = 1 {% endhint %} {% endtab %} {% tab title="Temperature" %} | Unit Name | Unit Symbol | Definition | | ------------ | --------------------------- | ------------------------------------------------------------------------------- | | Fahrenheit | °F, ºF, F, degF, fahrenheit | A temperature scale where water freezes at 32 degrees and boils at 212 degrees. | | Celsius | °C, ºC, C, degC, celsius | A temperature scale where water freezes at 0 degrees and boils at 100 degrees. | | {% endtab %} | | | {% tab title="Frequency" %} | Unit Name | Unit Symbol | Definition | | ------------ | ----------- | ------------------------------------------------ | | Nanohertz | nHz | One billionth of a hertz, or 1/1,000,000,000 Hz. | | Microhertz | µHz | One millionth of a hertz, or 1/1,000,000 Hz. | | Millihertz | mHz | One thousandth of a hertz, or 1/1,000 Hz. | | Hertz | Hz | One cycle per second | | Kilohertz | kHz | One thousand hertz, or 1,000 Hz. | | Megahertz | MHz | One million hertz, or 1,000,000 Hz. | | Gigahertz | GHz | One billion hertz, or 1,000,000,000 Hz. | | Terahertz | THz | One trillion hertz, or 1,000,000,000,000 Hz. | | {% endtab %} | | | {% tab title="Energy" %} | Unit Name | Unit Symbol | Definition | | -------------- | ----------- | --------------------------------------------------------- | | Terawatt hours | TWh | Equal to 1 trillion watt hours or 10^12 watt hours. | | Gigawatt hours | GWh | Equal to 1 billion watt hours or 10^9 watt hours. | | Megawatt hours | MWh | Equal to 1 million watt hours or 10^6 watt hours. | | Kilowatt hours | kWh | Equal to 1,000 watt hours or 10^3 watt hours. | | Watt hours | Wh | A unit of energy equal to one watt of power for one hour. | | Watt minutes | W m | Equal to 60 watt seconds. | | Watt seconds | W s | Basic unit of energy, equal to 1 joule. | | Kilocalories | kCal | Approx. equal to 4.184 kilojoules. | | Calories | cal | Approx. equal to 4.184 joules. | | Gigajoules | GJ | Equal to 1 billion joules or 10^9 joules. | | Megajoules | MJ | Equal to 1 million joules or 10^6 joules. | | Kilojoules | kJ | Equal to 1,000 joules or 10^3 joules. | | Joules | J | The SI unit of work or energy | | {% endtab %} | | | {% tab title="Power" %} | Unit Name | Unit Symbol | Definition | | ------------- | ----------- | ---------------------------------------- | | Horsepower | hp | A unit of power equivalent to 746 W | | Milliwatts | mW | A unit of power equivalent to 0.001 W | | Watts | W | The base unit of power in the SI system. | | Kilowatts | kW | A unit of power equivalent to 10³ W | | Megawatts | MW | A unit of power equivalent to 10⁶ W | | Gigawatts | GW | A unit of power equivalent to 10⁹ W | | Terawatts | TW | A unit of power equivalent to 10¹² W | | {% endtab %} | | | | {% endtabs %} | | | ### Computer-related Units {% tabs %} {% tab title="Data Storage" %} {% hint style="info" %} Units like GB, MB, kB, etc are in base 10 (1 GB = 1000 MB) Units like GiB, MiB, KiB, etc are in base 2 (1 GiB = 1024 MiB) See [here](https://en.wikipedia.org/wiki/Gigabyte) for more information on the SI standard with regards to units of data storage. {% endhint %} * Bytes (B) * Bits (bit) * Yottabytes (YB) * Zettabytes (ZB) * Exabytes (EB) * Petabytes (PB) * Terabytes (TB) * Gigabytes (GB) * Megabytes (MB) * Kilobytes (kB) * Yottabits (Yb) * Zettabits (Zb) * Exabits (Eb) * Petabits (Pb) * Terabits (Tb) * Gigabits (Gb) * Megabits (Mb) * Kilobits (kb) * Yobibytes (YiB) * Zebibytes (ZiB) * Exbibytes (EiB) * Pebibytes (PiB) * Tebibytes (TiB) * Gibibytes (GiB) * Mebibytes (MiB) * Kibibytes (KiB) * Yobibits (Yib) * Zebibits (Zib) * Exbibits (Eib) * Pebibits (Pib) * Tebibits (Tib) * Gibibits (Gib) * Mebibits (Mib) * Kibibits (Kib) {% endtab %} {% tab title="Data Transfer" %} * Bytes per second (Bps) * Bits per second (bps) * Yottabytes per second (YBps) * Zettabytes per second (ZBps) * Exabytes per second (EBps) * Petabytes per second (PBps) * Terabytes per second (TBps) * Gigabytes per second (GBp) * Megabytes per second (MBp) * Kilobytes per second (KBp) * Yottabits per second (Ybps) * Zettabits per second (Zbps) * Exabits per second (Ebps) * Petabits per second (Pbp) * Terabits per second (Tbp) * Gigabits per second (Gbp) * Megabits per second (Mbp) * Kilobits per second (Kbp) * Yobibytes per second (YiBps) * Zebibytes per second (ZiBps) * Exbibytes per second (EiBps) * Pebibytes per second (PiBps) * Tebibytes per second (TiBps) * Gibibytes per second (GiBps) * Mebibytes per second (MiBps) * Kibibytes per second (KiBps) * Yobibits per second (Yibps) * Zebibits per second (Zibps) * Exbibits per second (Eibps) * Pebibits per second (Pibps) * Tebibits per second (Tibps) * Gibibits per second (Gibps) * Mebibits per second (Mibps) * Kibibits per second (Kibps) {% endtab %} {% tab title="CSS" %} * Pixel (px) - defined as 1⁄96 inch (0.26 mm) * Em * Pt {% hint style="info" %} Note that CSS units are units of length, so you can convert them to and from other units of length, like inches {% endhint %} {% endtab %} {% endtabs %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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