# Celsius heat unit (IT) conversions

energy conversions » Celsius heat unit (IT) conversionsThe online converter calculator on this page allows you to select the energy measurement unit you want to convert to starting from Celsius heat units (IT) (CHU). To make a conversion starting from a unit of energy other than Celsius heat unit (IT), simply click on the "Reset" button.

## What is Celsius heat unit (IT)?

### Definition:

The Celsius heat unit (IT) is a unit of energy or work equal to 1,899.1005347 joules (1 CHU = 1,899.1005347 J), the SI derived unit of energy. It is also equal to 1.8991005347 kilojoules (kJ), or 453.895921 calories (thermochemical) (cal), or 0.453895921 kilocalories (thermochemical) (kcal), or 1.8 British thermal units (IT) (BTU), or 0.5275279 watt hours (Wh) or 0.0005275279 kilowatt hours (kWh).

The Celsius heat unit is the energy required to increase the temperature of one pound of water by one degree Celsius (or 1.8 degrees Fahrenheit) at a constant pressure of one atmosphere. One Celsius heat unit is equal to 1.8 British thermal units (1 CHU = 1.8 BTU).

The Celsius heat unit definition varies as follows:

- The Celsius heat unit (IT) (CHU) is equal to 1,899.100534716 joules (J)
- The Celsius heat unit (ISO) (CHU) is equal to 1,899.1008 joules (J)
- The Celsius heat unit (thermochemical) (CHU) is equal to about 1,897.830475992 joules (J)
- The Celsius heat unit (mean) (CHU) is equal to about 1,900.566 joules (J)
- The Celsius heat unit (39 °F) (CHU) is equal to about 1,907.406 joules (J)
- The Celsius heat unit (59 °F) (CHU) is equal to 1,898.6472 joules (J)
- The Celsius heat unit (60 °F) (CHU) is equal to about 1,898.424 joules (J)
- The Celsius heat unit (63 °F) (CHU) is equal to about 1,898.28 joules (J)

*Notes:*

(i) The SI is an abbreviation for the International System of Units

(ii) The IT is an abbreviation for the International [Steam] Table

(iii) The ISO is an abbreviation for the International Organization for Standardization

### Symbol:

CHU

### Plural:

Celsius heat units (IT)

### Also known as:

centigrade heat unit (plural: centigrade heat units)

Below you can find a comprehensive list with conversions from Celsius heat units (IT) to other (metric, imperial, or customary) energy measurement units.