CEMEX UK has integrated a concrete calculator into its website, enabling architects, engineers and contractors to compute material volumes and consumption figures without manual calculation. The tool addresses a persistent inefficiency in construction planning: time spent on worksheets and phone calls to suppliers. Whether this represents genuine process optimisation or primarily serves commercial purposes—directing users toward Cemex products—remains an open question for the industry. Similar digital aids have emerged across the building materials sector in recent years, reflecting broader digitalisation efforts in traditionally analogue construction workflows. The platform's practical impact will depend on adoption rates and whether field teams actually shift from established calculation habits.