Rev 7.1:

In the continuing quest to combat hackers, CALIB has been modified not to write any files on the server. This resulted in the format of the plot image being changed to SVG. Use Adobe Illustrator or the free software, Inkscape, to manipulate the downloaded file. If your web browser is Internet Explorer you'll simply get a png file when you download the image

Rev 7.0: What's changed from Rev 6.0

A new calibration curve for the conversion of radiocarbon ages to calibrated (cal) ages has been constructed and internationally ratified to replace IntCal09 which extended from 0-50 ka cal BP (Before Present, 0 cal BP = AD 1950). The new calibration dataset for terrestrial samples also extends from 0-50 ka cal BP.