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Water Hardness Calculator
Calculate and convert water hardness from calcium, magnesium, or a total
Education · Free · Web
Nby Nick Major·listed 2026-09-03·★★★★★ 0.0
About Water Hardness Calculator
Free water hardness calculator for students, homeowners, and water professionals. It calculates total hardness from calcium and magnesium, solves for a missing value, converts between mg/L as CaCO3, gpg, German and French degrees, and mmol/L, then shows the matching USGS category. The page includes formulas, worked examples, and source links. No signup is required.
Key features
- ✓ Calculate total hardness from calcium and magnesium
- ✓ Convert common water hardness units
- ✓ Show the matching USGS hardness category
calculatorcampus.com/calculators/water-hardness-calculator
WWater Hardness Calculator
Pricing
Free- Free$0Starting price as listed by the maker.
As listed by the builder on 2026-09-03 — check calculatorcampus.com/calculators/water-hardness-calculator for current plans.
Reviews
★★★★★ 0.0 · 0 reviewsNo reviews yet — be the first to say how Water Hardness Calculator worked out for you.
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