> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Units

## Using Units

Add units to a block input by typing in the unit abbreviation after the input value. This tells the input what unit you want and sets the input to that unit.

* Some units auto-populate when certain inputs are tied together. For example, In min and In max in the **Ramp** block always have the same units. Adding a unit for one input automatically sets the units for the other.
* Blocks only accept units that fit with their Output Types.

## Converting Units

Inputs auto-convert units when you type in a different unit of the same type.

**For example:** Type '5 m' into a Size input. The result converts the meters to millimeters, but shows 5 m in the input.

## Writing Units

* Use '^' to denote units with a superscript.
  * **For example:** mm^2 means mm<sup>2</sup>
* Use \* for multiplying units.
* Use / for dividing units.

## Accepted Base Units

Below is a list of accepted units for:

* <a href="#Length">Length</a>
* <a href="#Mass">Mass</a>
* <a href="#Time">Time</a>
* <a href="#Angle">Angle</a>
* <a href="#Temperature">Temperature</a>
* <a href="#Complex Units">Complex Units</a>

#### Length

| Name | Abbreviation | Unit System |
| - | - | - |
| Micrometers | um | SI |
| Millimeters | mm | SI |
| Centimeters | cm | SI |
| Meters | m | SI |
| Kilometers | km | SI |
| Inches | in | U.S. Customary |
| Feet | ft | U.S. Customary |
| Yards | yd | U.S. Customary |
| Miles | mi | U.S. Customary |

#### Mass

| Name | Abbreviation | Unit System |
| - | - | - |
| Grams | g | SI |
| Kilograms | kg | SI |
| Ounces | oz | U.S. Customary |
| Pounds | lbm | U.S. Customary |
| Metric Ton | tonne | Metric |
| Ton | ton | U.S. Customary |

#### Time

| Name | Abbreviation | Unit System |
| - | - | - |
| Milliseconds | ms | - |
| Seconds | s | SI |
| Minutes | min | - |
| Hours | hr | - |

#### Angle

| Name | Abbreviation | Unit System |
| - | - | - |
| Degrees | deg | - |
| Radians | rad | SI |

#### Temperature

Read more on using temperature units [here](https://support.ntopology.com/hc/en-us/articles/360060934274).

| Name | Abbreviation | Unit System |
| - | - | - |
| Delta Farenheit | dF | U.S. Customary |
| Delta Celcius | dC | SI |
| Farenheit | F | U.S. Customary |
| Celcius | C | SI |
| Kelvin | K | SI |

#### Complex Units

| Name | Abbreviation | Unit System |
| - | - | - |
| Newton | N | Metric |
| Kilonewton | kN | Metric |
| Pound Force | lbf | U.S. Customary |
| Pascal | Pa | Metric |
| Megapascal | MPA | Metric |
| Gigapascal | GPa | Metric |
| Pound Per Square Inch | psi | U.S. Customary |
| Kilopound Per Square Inch | ksi | U.S. Customary |
| Hertz | Hz | SI |
| British Thermal Unit | BTU | U.S. Customary |
| Watt | W | SI |
| Kilowatt | kW | SI |
| Megawatt | MW | SI |
| Joule | J | SI |


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.