How to use this tool
- Select the source and destination units.
- Enter a value or one value per line for batch conversion.
- Choose precision and copy or download the result.
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.