Free Excel Holocene Era
Conversion Calculator

The calendar most commonly used today places year 1 CE at a point in time during the Roman Empire. That system labels earlier human accomplishment "before" or assigns negative numbers. 

Emiliani's HE calendar places year 1 HE much earlier, when humans were settling into agricultural communities (loosely matching the beginning of the geological Holocene Epoch).  Calling any point in time "year 1" is somewhat arbitrary. EMILIANI set 1 HE exactly 10,000 years before 1 CE. 

With this calculator, you can convert between the BCE or BC and

HE systems. 

Method 1:
Enter a number in a yellow cell for conversion
 

Method 2:
Scroll or Search (ctrl-F)
to find the conversion

 

Also... HE conversion extension for your browser

9 Jan Cavel screenshot and link.jpg
00001 facebook holocene means entirely recent with emiliani photo
00001 facebook holocene means entirely recent with emiliani photo

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04323 HE use our conversion calculator
04323 HE use our conversion calculator

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12021 then to now and into the future
12021 then to now and into the future

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00001 facebook holocene means entirely recent with emiliani photo
00001 facebook holocene means entirely recent with emiliani photo

press to zoom
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