Ureolytic bacteria are microorganisms that can produce urease enzymes and precipitate calcium carbonate. Calcium carbonate is used as a self-healing concrete agent, concrete construction material and bioremediation. This study aims to determine calcium carbonate production from ureolytic bacteria, with isolate SP. 32, SP. 34, SP. 48, SP. 83, and SP. 84 based on growth phase and calcium car…