Normal human urine pH typically ranges from 4.5 to 8.0, with an average around 6.0. A pH of 6.0 represents slightly acidic urine, which is normal. The actual pH varies based on diet, health status, and metabolic needs. pH 2.0 is far too acidic (stomach acid level), while 7.5 and 8.0 are alkaline values that may indicate certain conditions or dietary influences.