Chronology of computation of π


The table below is a brief chronology of computed numerical values of, or bounds on, the mathematical constant pi. For more detailed explanations for some of these calculations, see Approximations of.

Before 1400

1400–1949

With electronic computers (1949–)

The last 100 decimal digits of the latest world record computation are:
1151172718 2444229740 0412605840 3026105553 7774728936 : 49,999,999,999,950
8888086663 6658909667 9659924528 1042319124 0640849268 : 50,000,000,000,000