Historical data [1] shows 25GB annual growth, and currently the blockchain is around 50GB, so that gives us an expected 3 years.<p>Current max theoretical is ~50GB annual, if every block is the max 1MB. There is an ongoing debate about whether to increase the max block size.<p>[1] <a href="https:&#x2F;&#x2F;blockchain.info&#x2F;charts&#x2F;blocks-size?timespan=1year&amp;showDataPoints=false&amp;daysAverageString=1&amp;show_header=true&amp;scale=0&amp;address=" rel="nofollow">https:&#x2F;&#x2F;blockchain.info&#x2F;charts&#x2F;blocks-size?timespan=1year&amp;sh...</a>