What is a kilocalorie (IT)?

A kilocalorie (IT) is an energy unit equal to 1,000 international-table calories, with each calorie defined as 4.1868 joules, totaling 4,186.8 joules per kilocalorie (IT).

What is the US therm used for?

The US therm is used to measure heat energy commonly in natural gas billing, heating system sizing, and industrial fuel energy accounting.

Why are the conversion values so small?

Because the therm (US) is a much larger unit than kilocalorie (IT), conversions result in very small decimal numbers.

Convert Kilocalorie (IT) [kcal (IT)] to Therm (US) Online

Easily convert energy values from kilocalorie (IT) to therm (US) using our reliable online unit converter. Ideal for HVAC, natural gas billing, and thermodynamic calculations.

Kilocalorie (IT) [kcal (IT)]

Therm (US)

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Kilocalorie (IT) [kcal (IT)] to Therm (US) Conversion Table

Kilocalorie (IT) [kcal (IT)]	Therm (US)

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Kilocalorie (IT) [kcal (IT)] to Therm (US) Conversion Table
Kilocalorie (IT) [kcal (IT)]	Therm (US)

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What Is This Tool?

This tool lets you convert energy measurements from kilocalorie (IT), a unit based on the international-table calorie, to the US therm, a unit commonly used for heating energy and natural gas measurement in the United States.

How to Use This Tool?

Enter the energy value in kilocalorie (IT) you wish to convert.
Select kilocalorie (IT) as the input unit and therm (US) as the output unit.
Click the convert button to see the equivalent energy in therm (US).

Key Features

Simple and browser-based energy unit conversion from kcal (IT) to therm (US).
Accurate application of the standardized conversion rate between units.
Useful for engineers, researchers, and industry professionals working with heat energy values.

Examples

Convert 500 kcal (IT) to therm (US): 500 × 0.0000396927 = 0.01984635 therm (US).
Convert 10,000 kcal (IT) to therm (US): 10,000 × 0.0000396927 = 0.396927 therm (US).

Common Use Cases

Translating older thermodynamic and calorimetry data into US customary energy units.
Comparing heat values from historical data with natural gas bills or furnace energy ratings.
Energy accounting and emissions estimation in industrial processes using multiple unit systems.

Tips & Best Practices

Double-check which calorie definition is used in your data for accurate conversions.
Be mindful that therm (US) is a much larger unit than kilocalorie (IT), so results will be small decimals.
Use this tool primarily for converting data from older or specialized literature and engineering contexts.

Limitations

Kilocalorie (IT) is not a standard international unit and is mostly found in older or specific documents.
Due to the large size difference, conversions produce small decimal values requiring careful numeric handling.
Unit definition differences mean validation of source unit conventions is necessary for accuracy.

Frequently Asked Questions

What is a kilocalorie (IT)?: A kilocalorie (IT) is an energy unit equal to 1,000 international-table calories, with each calorie defined as 4.1868 joules, totaling 4,186.8 joules per kilocalorie (IT).
What is the US therm used for?: The US therm is used to measure heat energy commonly in natural gas billing, heating system sizing, and industrial fuel energy accounting.
Why are the conversion values so small?: Because the therm (US) is a much larger unit than kilocalorie (IT), conversions result in very small decimal numbers.

Key Terminology

Kilocalorie (IT): An energy unit equal to 1,000 international-table calories, each calorie being 4.1868 joules, total 4,186.8 joules per kcal (IT).
Therm (US): A non-SI heat energy unit equal to 100,000 British thermal units, widely used in the United States for natural gas and heating applications.
International-table calorie: A calorie unit defined precisely as 4.1868 joules, serving as the basis for the kilocalorie (IT).

Quick Knowledge Check

What is the relationship between kilocalorie (IT) and international-table calories?

One kilocalorie (IT) equals 100 international-table calories

One kilocalorie (IT) equals 1,000 international-table calories

One kilocalorie (IT) equals 10 international-table calories

Which industry commonly uses the US therm?

Pharmaceutical research

Natural gas distribution and heating

Automotive manufacturing

When converting from kilocalorie (IT) to therm (US), you should expect:

Large whole number results

Very small decimal results

No numerical change

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