Phosphate: mg/dL to mmol/L

US labs print phosphate in mg/dL, most European labs in mmol/L. To convert, divide mg/dL by 3.0974; to go back, multiply mmol/L by 3.0974.

Value

mg/dL

Same value in1.13mmol/L

mmol/L = mg/dL ÷ 3.0974 · molar mass 30.974 g/mol

This converter changes units only. It doesn’t tell you whether a number is in or out of any range: that depends on the range printed by your own lab, and on your doctor. Soma does not diagnose and is not medical advice.

The formula

mg/dL → mmol/L: mmol/L = mg/dL ÷ 3.0974
mmol/L → mg/dL: mg/dL = mmol/L × 3.0974
Where 3.0974 comes from: mg/dL counts the weight of phosphate in a volume of blood, mmol/L the number of molecules. One mole of phosphorus: labs measure phosphate as phosphorus weighs 30.974 g; with that and the difference in volume, one mmol/L is 3.0974 mg/dL.

What the values mean

Typical ranges as the MedlinePlus Medical Encyclopedia gives them, in both units. They are for orientation only: your lab may use other ranges, and a result is read against the range printed on its own report.

Group	mg/dL	mmol/L
Adults	2.8–4.5	0.904–1.45
Children	4–7	1.29–2.26

Source: Phosphorus blood test, MedlinePlus Medical Encyclopedia (U.S. National Library of Medicine), “Normal Results”. The second unit is converted here and rounded.

Common values, converted

Straight conversions, rounded. The table doesn’t mark any value as normal or not; your lab’s report gives its own range.

mg/dL	mmol/L
2 mg/dL	0.65 mmol/L
2.5 mg/dL	0.81 mmol/L
3 mg/dL	0.97 mmol/L
3.5 mg/dL	1.13 mmol/L
4 mg/dL	1.29 mmol/L
4.5 mg/dL	1.45 mmol/L
5 mg/dL	1.61 mmol/L
5.5 mg/dL	1.78 mmol/L
6 mg/dL	1.94 mmol/L

mmol/L	mg/dL
0.6 mmol/L	1.86 mg/dL
0.8 mmol/L	2.48 mg/dL
1 mmol/L	3.1 mg/dL
1.2 mmol/L	3.72 mg/dL
1.4 mmol/L	4.34 mg/dL
1.6 mmol/L	4.96 mg/dL
1.8 mmol/L	5.58 mg/dL
2 mmol/L	6.19 mg/dL

Show all 91 values: 1–10 mg/dL in mmol/L

1 mg/dL = 0.32 mmol/L
1.1 mg/dL = 0.36 mmol/L
1.2 mg/dL = 0.39 mmol/L
1.3 mg/dL = 0.42 mmol/L
1.4 mg/dL = 0.45 mmol/L
1.5 mg/dL = 0.48 mmol/L
1.6 mg/dL = 0.52 mmol/L
1.7 mg/dL = 0.55 mmol/L
1.8 mg/dL = 0.58 mmol/L
1.9 mg/dL = 0.61 mmol/L
2 mg/dL = 0.65 mmol/L
2.1 mg/dL = 0.68 mmol/L
2.2 mg/dL = 0.71 mmol/L
2.3 mg/dL = 0.74 mmol/L
2.4 mg/dL = 0.77 mmol/L
2.5 mg/dL = 0.81 mmol/L
2.6 mg/dL = 0.84 mmol/L
2.7 mg/dL = 0.87 mmol/L
2.8 mg/dL = 0.9 mmol/L
2.9 mg/dL = 0.94 mmol/L
3 mg/dL = 0.97 mmol/L
3.1 mg/dL = 1 mmol/L
3.2 mg/dL = 1.03 mmol/L
3.3 mg/dL = 1.07 mmol/L
3.4 mg/dL = 1.1 mmol/L
3.5 mg/dL = 1.13 mmol/L
3.6 mg/dL = 1.16 mmol/L
3.7 mg/dL = 1.19 mmol/L
3.8 mg/dL = 1.23 mmol/L
3.9 mg/dL = 1.26 mmol/L
4 mg/dL = 1.29 mmol/L
4.1 mg/dL = 1.32 mmol/L
4.2 mg/dL = 1.36 mmol/L
4.3 mg/dL = 1.39 mmol/L
4.4 mg/dL = 1.42 mmol/L
4.5 mg/dL = 1.45 mmol/L
4.6 mg/dL = 1.49 mmol/L
4.7 mg/dL = 1.52 mmol/L
4.8 mg/dL = 1.55 mmol/L
4.9 mg/dL = 1.58 mmol/L
5 mg/dL = 1.61 mmol/L
5.1 mg/dL = 1.65 mmol/L
5.2 mg/dL = 1.68 mmol/L
5.3 mg/dL = 1.71 mmol/L
5.4 mg/dL = 1.74 mmol/L
5.5 mg/dL = 1.78 mmol/L
5.6 mg/dL = 1.81 mmol/L
5.7 mg/dL = 1.84 mmol/L
5.8 mg/dL = 1.87 mmol/L
5.9 mg/dL = 1.9 mmol/L
6 mg/dL = 1.94 mmol/L
6.1 mg/dL = 1.97 mmol/L
6.2 mg/dL = 2 mmol/L
6.3 mg/dL = 2.03 mmol/L
6.4 mg/dL = 2.07 mmol/L
6.5 mg/dL = 2.1 mmol/L
6.6 mg/dL = 2.13 mmol/L
6.7 mg/dL = 2.16 mmol/L
6.8 mg/dL = 2.2 mmol/L
6.9 mg/dL = 2.23 mmol/L
7 mg/dL = 2.26 mmol/L
7.1 mg/dL = 2.29 mmol/L
7.2 mg/dL = 2.32 mmol/L
7.3 mg/dL = 2.36 mmol/L
7.4 mg/dL = 2.39 mmol/L
7.5 mg/dL = 2.42 mmol/L
7.6 mg/dL = 2.45 mmol/L
7.7 mg/dL = 2.49 mmol/L
7.8 mg/dL = 2.52 mmol/L
7.9 mg/dL = 2.55 mmol/L
8 mg/dL = 2.58 mmol/L
8.1 mg/dL = 2.62 mmol/L
8.2 mg/dL = 2.65 mmol/L
8.3 mg/dL = 2.68 mmol/L
8.4 mg/dL = 2.71 mmol/L
8.5 mg/dL = 2.74 mmol/L
8.6 mg/dL = 2.78 mmol/L
8.7 mg/dL = 2.81 mmol/L
8.8 mg/dL = 2.84 mmol/L
8.9 mg/dL = 2.87 mmol/L
9 mg/dL = 2.91 mmol/L
9.1 mg/dL = 2.94 mmol/L
9.2 mg/dL = 2.97 mmol/L
9.3 mg/dL = 3 mmol/L
9.4 mg/dL = 3.03 mmol/L
9.5 mg/dL = 3.07 mmol/L
9.6 mg/dL = 3.1 mmol/L
9.7 mg/dL = 3.13 mmol/L
9.8 mg/dL = 3.16 mmol/L
9.9 mg/dL = 3.2 mmol/L
10 mg/dL = 3.23 mmol/L

Show all 291 values: 0.3–3.2 mmol/L in mg/dL

0.3 mmol/L = 0.93 mg/dL
0.31 mmol/L = 0.96 mg/dL
0.32 mmol/L = 0.99 mg/dL
0.33 mmol/L = 1.02 mg/dL
0.34 mmol/L = 1.05 mg/dL
0.35 mmol/L = 1.08 mg/dL
0.36 mmol/L = 1.12 mg/dL
0.37 mmol/L = 1.15 mg/dL
0.38 mmol/L = 1.18 mg/dL
0.39 mmol/L = 1.21 mg/dL
0.4 mmol/L = 1.24 mg/dL
0.41 mmol/L = 1.27 mg/dL
0.42 mmol/L = 1.3 mg/dL
0.43 mmol/L = 1.33 mg/dL
0.44 mmol/L = 1.36 mg/dL
0.45 mmol/L = 1.39 mg/dL
0.46 mmol/L = 1.42 mg/dL
0.47 mmol/L = 1.46 mg/dL
0.48 mmol/L = 1.49 mg/dL
0.49 mmol/L = 1.52 mg/dL
0.5 mmol/L = 1.55 mg/dL
0.51 mmol/L = 1.58 mg/dL
0.52 mmol/L = 1.61 mg/dL
0.53 mmol/L = 1.64 mg/dL
0.54 mmol/L = 1.67 mg/dL
0.55 mmol/L = 1.7 mg/dL
0.56 mmol/L = 1.73 mg/dL
0.57 mmol/L = 1.77 mg/dL
0.58 mmol/L = 1.8 mg/dL
0.59 mmol/L = 1.83 mg/dL
0.6 mmol/L = 1.86 mg/dL
0.61 mmol/L = 1.89 mg/dL
0.62 mmol/L = 1.92 mg/dL
0.63 mmol/L = 1.95 mg/dL
0.64 mmol/L = 1.98 mg/dL
0.65 mmol/L = 2.01 mg/dL
0.66 mmol/L = 2.04 mg/dL
0.67 mmol/L = 2.08 mg/dL
0.68 mmol/L = 2.11 mg/dL
0.69 mmol/L = 2.14 mg/dL
0.7 mmol/L = 2.17 mg/dL
0.71 mmol/L = 2.2 mg/dL
0.72 mmol/L = 2.23 mg/dL
0.73 mmol/L = 2.26 mg/dL
0.74 mmol/L = 2.29 mg/dL
0.75 mmol/L = 2.32 mg/dL
0.76 mmol/L = 2.35 mg/dL
0.77 mmol/L = 2.38 mg/dL
0.78 mmol/L = 2.42 mg/dL
0.79 mmol/L = 2.45 mg/dL
0.8 mmol/L = 2.48 mg/dL
0.81 mmol/L = 2.51 mg/dL
0.82 mmol/L = 2.54 mg/dL
0.83 mmol/L = 2.57 mg/dL
0.84 mmol/L = 2.6 mg/dL
0.85 mmol/L = 2.63 mg/dL
0.86 mmol/L = 2.66 mg/dL
0.87 mmol/L = 2.69 mg/dL
0.88 mmol/L = 2.73 mg/dL
0.89 mmol/L = 2.76 mg/dL
0.9 mmol/L = 2.79 mg/dL
0.91 mmol/L = 2.82 mg/dL
0.92 mmol/L = 2.85 mg/dL
0.93 mmol/L = 2.88 mg/dL
0.94 mmol/L = 2.91 mg/dL
0.95 mmol/L = 2.94 mg/dL
0.96 mmol/L = 2.97 mg/dL
0.97 mmol/L = 3 mg/dL
0.98 mmol/L = 3.04 mg/dL
0.99 mmol/L = 3.07 mg/dL
1 mmol/L = 3.1 mg/dL
1.01 mmol/L = 3.13 mg/dL
1.02 mmol/L = 3.16 mg/dL
1.03 mmol/L = 3.19 mg/dL
1.04 mmol/L = 3.22 mg/dL
1.05 mmol/L = 3.25 mg/dL
1.06 mmol/L = 3.28 mg/dL
1.07 mmol/L = 3.31 mg/dL
1.08 mmol/L = 3.35 mg/dL
1.09 mmol/L = 3.38 mg/dL
1.1 mmol/L = 3.41 mg/dL
1.11 mmol/L = 3.44 mg/dL
1.12 mmol/L = 3.47 mg/dL
1.13 mmol/L = 3.5 mg/dL
1.14 mmol/L = 3.53 mg/dL
1.15 mmol/L = 3.56 mg/dL
1.16 mmol/L = 3.59 mg/dL
1.17 mmol/L = 3.62 mg/dL
1.18 mmol/L = 3.65 mg/dL
1.19 mmol/L = 3.69 mg/dL
1.2 mmol/L = 3.72 mg/dL
1.21 mmol/L = 3.75 mg/dL
1.22 mmol/L = 3.78 mg/dL
1.23 mmol/L = 3.81 mg/dL
1.24 mmol/L = 3.84 mg/dL
1.25 mmol/L = 3.87 mg/dL
1.26 mmol/L = 3.9 mg/dL
1.27 mmol/L = 3.93 mg/dL
1.28 mmol/L = 3.96 mg/dL
1.29 mmol/L = 4 mg/dL
1.3 mmol/L = 4.03 mg/dL
1.31 mmol/L = 4.06 mg/dL
1.32 mmol/L = 4.09 mg/dL
1.33 mmol/L = 4.12 mg/dL
1.34 mmol/L = 4.15 mg/dL
1.35 mmol/L = 4.18 mg/dL
1.36 mmol/L = 4.21 mg/dL
1.37 mmol/L = 4.24 mg/dL
1.38 mmol/L = 4.27 mg/dL
1.39 mmol/L = 4.31 mg/dL
1.4 mmol/L = 4.34 mg/dL
1.41 mmol/L = 4.37 mg/dL
1.42 mmol/L = 4.4 mg/dL
1.43 mmol/L = 4.43 mg/dL
1.44 mmol/L = 4.46 mg/dL
1.45 mmol/L = 4.49 mg/dL
1.46 mmol/L = 4.52 mg/dL
1.47 mmol/L = 4.55 mg/dL
1.48 mmol/L = 4.58 mg/dL
1.49 mmol/L = 4.62 mg/dL
1.5 mmol/L = 4.65 mg/dL
1.51 mmol/L = 4.68 mg/dL
1.52 mmol/L = 4.71 mg/dL
1.53 mmol/L = 4.74 mg/dL
1.54 mmol/L = 4.77 mg/dL
1.55 mmol/L = 4.8 mg/dL
1.56 mmol/L = 4.83 mg/dL
1.57 mmol/L = 4.86 mg/dL
1.58 mmol/L = 4.89 mg/dL
1.59 mmol/L = 4.92 mg/dL
1.6 mmol/L = 4.96 mg/dL
1.61 mmol/L = 4.99 mg/dL
1.62 mmol/L = 5.02 mg/dL
1.63 mmol/L = 5.05 mg/dL
1.64 mmol/L = 5.08 mg/dL
1.65 mmol/L = 5.11 mg/dL
1.66 mmol/L = 5.14 mg/dL
1.67 mmol/L = 5.17 mg/dL
1.68 mmol/L = 5.2 mg/dL
1.69 mmol/L = 5.23 mg/dL
1.7 mmol/L = 5.27 mg/dL
1.71 mmol/L = 5.3 mg/dL
1.72 mmol/L = 5.33 mg/dL
1.73 mmol/L = 5.36 mg/dL
1.74 mmol/L = 5.39 mg/dL
1.75 mmol/L = 5.42 mg/dL
1.76 mmol/L = 5.45 mg/dL
1.77 mmol/L = 5.48 mg/dL
1.78 mmol/L = 5.51 mg/dL
1.79 mmol/L = 5.54 mg/dL
1.8 mmol/L = 5.58 mg/dL
1.81 mmol/L = 5.61 mg/dL
1.82 mmol/L = 5.64 mg/dL
1.83 mmol/L = 5.67 mg/dL
1.84 mmol/L = 5.7 mg/dL
1.85 mmol/L = 5.73 mg/dL
1.86 mmol/L = 5.76 mg/dL
1.87 mmol/L = 5.79 mg/dL
1.88 mmol/L = 5.82 mg/dL
1.89 mmol/L = 5.85 mg/dL
1.9 mmol/L = 5.89 mg/dL
1.91 mmol/L = 5.92 mg/dL
1.92 mmol/L = 5.95 mg/dL
1.93 mmol/L = 5.98 mg/dL
1.94 mmol/L = 6.01 mg/dL
1.95 mmol/L = 6.04 mg/dL
1.96 mmol/L = 6.07 mg/dL
1.97 mmol/L = 6.1 mg/dL
1.98 mmol/L = 6.13 mg/dL
1.99 mmol/L = 6.16 mg/dL
2 mmol/L = 6.19 mg/dL
2.01 mmol/L = 6.23 mg/dL
2.02 mmol/L = 6.26 mg/dL
2.03 mmol/L = 6.29 mg/dL
2.04 mmol/L = 6.32 mg/dL
2.05 mmol/L = 6.35 mg/dL
2.06 mmol/L = 6.38 mg/dL
2.07 mmol/L = 6.41 mg/dL
2.08 mmol/L = 6.44 mg/dL
2.09 mmol/L = 6.47 mg/dL
2.1 mmol/L = 6.5 mg/dL
2.11 mmol/L = 6.54 mg/dL
2.12 mmol/L = 6.57 mg/dL
2.13 mmol/L = 6.6 mg/dL
2.14 mmol/L = 6.63 mg/dL
2.15 mmol/L = 6.66 mg/dL
2.16 mmol/L = 6.69 mg/dL
2.17 mmol/L = 6.72 mg/dL
2.18 mmol/L = 6.75 mg/dL
2.19 mmol/L = 6.78 mg/dL
2.2 mmol/L = 6.81 mg/dL
2.21 mmol/L = 6.85 mg/dL
2.22 mmol/L = 6.88 mg/dL
2.23 mmol/L = 6.91 mg/dL
2.24 mmol/L = 6.94 mg/dL
2.25 mmol/L = 6.97 mg/dL
2.26 mmol/L = 7 mg/dL
2.27 mmol/L = 7.03 mg/dL
2.28 mmol/L = 7.06 mg/dL
2.29 mmol/L = 7.09 mg/dL
2.3 mmol/L = 7.12 mg/dL
2.31 mmol/L = 7.15 mg/dL
2.32 mmol/L = 7.19 mg/dL
2.33 mmol/L = 7.22 mg/dL
2.34 mmol/L = 7.25 mg/dL
2.35 mmol/L = 7.28 mg/dL
2.36 mmol/L = 7.31 mg/dL
2.37 mmol/L = 7.34 mg/dL
2.38 mmol/L = 7.37 mg/dL
2.39 mmol/L = 7.4 mg/dL
2.4 mmol/L = 7.43 mg/dL
2.41 mmol/L = 7.46 mg/dL
2.42 mmol/L = 7.5 mg/dL
2.43 mmol/L = 7.53 mg/dL
2.44 mmol/L = 7.56 mg/dL
2.45 mmol/L = 7.59 mg/dL
2.46 mmol/L = 7.62 mg/dL
2.47 mmol/L = 7.65 mg/dL
2.48 mmol/L = 7.68 mg/dL
2.49 mmol/L = 7.71 mg/dL
2.5 mmol/L = 7.74 mg/dL
2.51 mmol/L = 7.77 mg/dL
2.52 mmol/L = 7.81 mg/dL
2.53 mmol/L = 7.84 mg/dL
2.54 mmol/L = 7.87 mg/dL
2.55 mmol/L = 7.9 mg/dL
2.56 mmol/L = 7.93 mg/dL
2.57 mmol/L = 7.96 mg/dL
2.58 mmol/L = 7.99 mg/dL
2.59 mmol/L = 8.02 mg/dL
2.6 mmol/L = 8.05 mg/dL
2.61 mmol/L = 8.08 mg/dL
2.62 mmol/L = 8.12 mg/dL
2.63 mmol/L = 8.15 mg/dL
2.64 mmol/L = 8.18 mg/dL
2.65 mmol/L = 8.21 mg/dL
2.66 mmol/L = 8.24 mg/dL
2.67 mmol/L = 8.27 mg/dL
2.68 mmol/L = 8.3 mg/dL
2.69 mmol/L = 8.33 mg/dL
2.7 mmol/L = 8.36 mg/dL
2.71 mmol/L = 8.39 mg/dL
2.72 mmol/L = 8.42 mg/dL
2.73 mmol/L = 8.46 mg/dL
2.74 mmol/L = 8.49 mg/dL
2.75 mmol/L = 8.52 mg/dL
2.76 mmol/L = 8.55 mg/dL
2.77 mmol/L = 8.58 mg/dL
2.78 mmol/L = 8.61 mg/dL
2.79 mmol/L = 8.64 mg/dL
2.8 mmol/L = 8.67 mg/dL
2.81 mmol/L = 8.7 mg/dL
2.82 mmol/L = 8.73 mg/dL
2.83 mmol/L = 8.77 mg/dL
2.84 mmol/L = 8.8 mg/dL
2.85 mmol/L = 8.83 mg/dL
2.86 mmol/L = 8.86 mg/dL
2.87 mmol/L = 8.89 mg/dL
2.88 mmol/L = 8.92 mg/dL
2.89 mmol/L = 8.95 mg/dL
2.9 mmol/L = 8.98 mg/dL
2.91 mmol/L = 9.01 mg/dL
2.92 mmol/L = 9.04 mg/dL
2.93 mmol/L = 9.08 mg/dL
2.94 mmol/L = 9.11 mg/dL
2.95 mmol/L = 9.14 mg/dL
2.96 mmol/L = 9.17 mg/dL
2.97 mmol/L = 9.2 mg/dL
2.98 mmol/L = 9.23 mg/dL
2.99 mmol/L = 9.26 mg/dL
3 mmol/L = 9.29 mg/dL
3.01 mmol/L = 9.32 mg/dL
3.02 mmol/L = 9.35 mg/dL
3.03 mmol/L = 9.39 mg/dL
3.04 mmol/L = 9.42 mg/dL
3.05 mmol/L = 9.45 mg/dL
3.06 mmol/L = 9.48 mg/dL
3.07 mmol/L = 9.51 mg/dL
3.08 mmol/L = 9.54 mg/dL
3.09 mmol/L = 9.57 mg/dL
3.1 mmol/L = 9.6 mg/dL
3.11 mmol/L = 9.63 mg/dL
3.12 mmol/L = 9.66 mg/dL
3.13 mmol/L = 9.69 mg/dL
3.14 mmol/L = 9.73 mg/dL
3.15 mmol/L = 9.76 mg/dL
3.16 mmol/L = 9.79 mg/dL
3.17 mmol/L = 9.82 mg/dL
3.18 mmol/L = 9.85 mg/dL
3.19 mmol/L = 9.88 mg/dL
3.2 mmol/L = 9.91 mg/dL

About the test

Phosphate, inorganic phosphorus, is a mineral that builds bones together with calcium and takes part in energy metabolism.

About the phosphate test · Phosphate in Blood — MedlinePlus (U.S. National Library of Medicine).

Questions

Phosphate: what levels are typical?

MedlinePlus gives these typical ranges: Adults: 2.8–4.5 mg/dL (0.904–1.45 mmol/L); Children: 4–7 mg/dL (1.29–2.26 mmol/L). Labs differ in method, so your lab may use other ranges; the one on your report is the one to go by.

How do I convert phosphate from mg/dL to mmol/L?

Divide mg/dL by 3.0974. For example, 3.5 mg/dL is 1.13 mmol/L.

How do I convert phosphate from mmol/L to mg/dL?

Multiply mmol/L by 3.0974. For example, 1.4 mmol/L is 4.34 mg/dL.

Why is the factor 3.0974?

It follows from the molar mass of phosphorus: labs measure phosphate as phosphorus, 30.974 g/mol, and from the volume each unit counts in.

Why does my lab’s phosphate range differ from another lab’s?

Each lab sets its range for its own method and equipment, and many ranges differ by age and sex. That’s why a result is best read against the range printed on the same report.

Related conversions

Phosphate 3.5 mg/dL= 1.13 mmol/L

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Sources: PubChem: Phosphorus (phosphorus: labs measure phosphate as phosphorus), molar mass 30.974 g/mol; the test description from MedlinePlus. Mention of a source doesn’t mean it endorses Soma.