The Hubble constant (H0) is a key parameter in cosmology that sets the current expansion rate of the Universe. There is an intriguing tension between measurements of H0 from different methods. The tension could be due to errors in the measurements that are not yet accounted for. If this is ruled out, then new physics beyond the standard cosmological model would be needed to resolve the tension. Independent measurements of H0 are therefore crucial to assess the tension and the need for new physics. I will describe various methods for measuring the Hubble constant, with particular focus on the ones used in the ORIGINS Connector 4. I will also report on the ORIGINS workshop on H0 that took place in late September.