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Calorie thermochemical to calorie international table

Convert calorie thermochemical (cal th) to calorie international table (cal IT) with adjustable precision, a worked example and a reference table.

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Converters workspace● Runs in your browser
01 Your input
02 Your result
YOUR RESULT
Ready when you are
Conversion formula(value × 4.184 + 0 − 0) ÷ 4.1868

Reference table

cal thcal IT
10.999331231489
54.99665615745
109.99331231489
2524.9832807872
5049.9665615745
10099.9331231489

How the conversion works

The input is converted into J using the source factor and offset, then into calorie international table. This keeps unit definitions consistent across the energy collection.

Definitions and sources

Factors are maintained in the versioned unit dataset. Output is rounded to your selected significant digits; calculation uses JavaScript double precision.

How to use this tool

  1. Enter a finite numeric value in calorie thermochemical.
  2. Choose the significant digits for your result.
  3. Copy or download the result, including its formula.

Try this example

10

Accuracy and scope

Calorie and BTU conventions are explicitly distinguished. Electronvolt uses the exact post-2019 SI elementary charge.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.