Mineral Water Guide
How the Water Calculator Works
A quick look at the logic behind your results.
The h2oMatch Water Calculator helps you discover mineral waters based on the mineral preferences you express during the calculator flow. You select a country, choose your preferred level of mineralization, and indicate which minerals matter most to you. The calculator then filters and ranks the waters accordingly.
Your Mineral Preferences Shape the Results
When you use the Water Calculator, you answer a few simple questions about what you are looking for in a mineral water. For example, you can indicate whether you prefer a lighter or more mineral-rich water, or whether you value higher calcium or lower sodium.
These are the preferences you express directly inside the calculator, not to be confused with the h2oMatch Profile, which is a separate tool. Two people selecting different mineral preferences in the calculator will get different rankings for the same set of waters.
What the Algorithm Considers
The calculator compares each water's mineral composition against the preferences you selected. It looks at the key parameters that define a mineral water's character:
All values come from official bottle labels and publicly available brand documentation, the same numbers you can read on any mineral water bottle.
How Results Are Ranked
Once you have expressed your mineral preferences, the algorithm evaluates every water in the selected country and determines how closely each one matches what you indicated.
Waters that align more closely with your selected preferences appear higher in the results. The algorithm also considers overall balance: a water that is well-rounded across multiple parameters may rank higher than one that excels in a single area but falls short in others.
The goal is not to find a "perfect" water, but to surface the options that best fit the mineral criteria you selected.
Water Type Filtering
During the calculator flow, you can also choose whether you want to see still, lightly sparkling, or sparkling waters. If you have a Profile, this preference is remembered automatically so you don't have to select it each time.
If no water type is selected, all carbonation types are included in the results.
What the Calculator Does Not Do
The Water Calculator is a preference-matching tool, not a medical or nutritional advisor. It does not evaluate health claims, diagnose conditions, or replace professional guidance.
If you have specific dietary restrictions or medical concerns, always consult a qualified healthcare professional.
Key Takeaway
The Water Calculator matches waters to the mineral preferences you express inside the calculator, not to a universal standard or a personal profile. Your results reflect the criteria you selected, compared against real mineral composition data from official labels.