Calculate Ionized Calcium from Total Calcium
Calcium is a vital mineral for bone health and various bodily functions. It exists in two forms in the blood: ionized (active) and protein-bound (inactive). This calculator helps you determine ionized calcium levels from total calcium and albumin levels.
- Enter the total calcium level in mg/dL.
- Enter the albumin level in g/dL.
- Click ‘Calculate’.
The formula to calculate ionized calcium is:
Ionized Calcium (mg/dL) = Total Calcium (mg/dL) – (0.8 * Albumin (g/dL))
| Total Calcium (mg/dL) | Albumin (g/dL) | Ionized Calcium (mg/dL) |
|---|---|---|
| 10.5 | 4.2 | 1.9 |
| 9.8 | 3.5 | 2.6 |
| 11.2 | 4.8 | 0.8 |
| Total Calcium (mg/dL) | Albumin (g/dL) | Ionized Calcium (mg/dL) |
|---|---|---|
| 9.5 – 10.5 | 3.5 – 5.5 | 1.12 – 1.35 |
- Low ionized calcium levels can cause muscle cramps, numbness, and tingling in the extremities.
- High ionized calcium levels can lead to constipation, nausea, and kidney stones.
What is the normal range for ionized calcium?
1.12 – 1.35 mg/dL
How does albumin affect ionized calcium levels?
Albumin binds to calcium, reducing the amount of ionized calcium in the blood.