SDG 4 is to: "Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all". Major progress has been made in access to education, specifically at the primary school level, for both boys and girls. The number of out-of-school children has almost halved from 112 million in 1997 to 60 million in 2014. In terms of the progress made, global participation in tertiary education reached 224 million in 2018, equivalent to a gross enrollment ratio of 38%.

SDG 4 has ten targets which are measured by 11 indicators. The seven "outcome-oriented targets" are: free primary and secondary education; equal access to quality pre-primary education; affordable technical, vocational and higher education; increased number of people with relevant skills for financial success; elimination of all discrimination in education; universal literacy and numeracy; and education for sustainable development and global citizenship. The three "means of achieving targets" are: build and upgrade inclusive and safe schools; expand higher education scholarships for developing countries; and increase the supply of qualified teachers in developing countries.