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Urine & CSF

Phosphate (24-h urine): convert mmol/24 h to mg/24 h

mg/24 h = mmol/24 h × 30.97

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Enter a value in any unit and all other units fill in.

Conversion formulas

mmol/24 h → mg/24 hmg/24 h = mmol/24 h × 30.97
mg/24 h → mmol/24 hmmol/24 h = mg/24 h × 0.03229

Conversion table

Highlighted: values inside the adult reference range.

mmol/24 hmg/24 h
10309.7
20619.4
30929.1
401239
501548
601858
702168
802478
902787
1003097
1103407
1203716

Reference range

15 – 50 mmol/24 h = 464.5 – 1548 mg/24 h

Source: Newcastle Hospitals Laboratories: Phosphate, urine · Last reviewed: 2026-10-19

Frequently asked questions

How do I convert Phosphate (24-h urine) from mmol/24 h to mg/24 h?

mg/24 h = mmol/24 h × 30.97. For example, 30 mmol/24 h equals 929 mg/24 h.

How many mg/24 h are 30 mmol/24 h?

30 mmol/24 h equal 929 mg/24 h (Phosphate (24-h urine)).

How do I convert Phosphate (24-h urine) from mg/24 h back to mmol/24 h?

mmol/24 h = mg/24 h × 0.03229.

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