Tools & Calculators
Free interactive tools to help you size your system, analyze your water, plan maintenance, and make informed filtration decisions.
Water Softener Sizing Calculator
Find out how many grains your system needs based on your water quality and household size. Matches you to the right system.
Water Hardness Map
Find your water hardness by location with our interactive hard water map. See hardness levels across the US.
PFAS Contamination Map
Check if PFAS "forever chemicals" have been detected in your area. Interactive map of PFAS contamination across the US.
Water Report Analyzer
Upload or enter your water report data and get personalized filtration recommendations based on your water quality.
Softener Regeneration Calculator
Calculate how often your water softener needs to regenerate based on your water hardness, usage, and system capacity.
Water Hardness Converter
Convert reported water hardness between common hardness units to help interpret your water report.
DI Resin Capacity Calculator
Calculate the capacity and lifespan of your deionized water filter resin based on your water quality and usage.
Spot-Free Rinse Calculator
Calculate how many cars you can wash with DI water for auto detailing. Plan your resin replacement schedule.
Water Softener Quiz
Answer a few questions about your water and home to find out if you need a water softener and which size is right for you.
Video Resource Library
Installation guides, product tutorials, and water education videos from the Crystal Quest team.
Not sure which tool to use?
Our water quality experts can help you figure out what you need. Just ask.