The urine albumin to creatinine ratio (ACR) may be expressed in different units of measurement.
The ACR may be expressed as mg per g creatinine or as mg per mmol creatinine.
The molecular weight of creatinine is 113.12.
1 gram of creatinine is 0.00884 moles or 8.84 mmol.
1 mg per gram creatinine = 0.1131 mg per mmol creatinine
1 mg per mmol creatinine = 8.8417 mg per gram creatinine