Download your PDF
Water Hardness as CaCO3 Calculator result sheet — free, supported by sponsors. Your download button appears in 20 seconds.
This free download is supported by sponsors — continuing in
20
Your file is generated in your browser when you choose Download — nothing is uploaded. If this calculator returns enough numeric data, the export also includes its best-fit chart alongside the readable table.
WorldCalculate result export
Water Hardness as CaCO3 Calculator — result sheet
Convert dissolved calcium and magnesium concentrations into equivalent water hardness as calcium carbonate.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: Hardness as CaCO3 ≈ 2.497×Ca(mg/L) + 4.118×Mg(mg/L).
The factors convert calcium and magnesium equivalents into the common calcium-carbonate reporting basis.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Calcium concentration — mg/L Ca²⁺; minimum 0; maximum 1000000000
- Magnesium concentration — mg/L Mg²⁺; minimum 0; maximum 1000000000
Worked example
| Input | Value |
|---|---|
| Calcium concentration | 40 |
| Magnesium concentration | 12 |
Hardness ≈ 149.3 mg/L as CaCO3.
Assumptions and limits
- Calcium and magnesium concentrations are dissolved-ion concentrations in mg/L.
- The result uses the conventional CaCO3-equivalent basis and does not classify a local water supply by law.
- Other hardness-producing ions, alkalinity, treatment, and laboratory uncertainty are not inferred.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
No saved result was found. Please run the calculation first, then choose Download again.