How do you calculate BC and AD?
How do you calculate BC and AD?
Calculating Years Across B.C. and A.D. For example, if you need to work out how many years are between January 1, 200 B.C. to January 1, A.D. 700 you add the BC and AD numbers. The calculation is 700 + 200, which equals 900 years. However, you still have to adjust for the absence of year 0. Apr 26, 2018
