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Residential Water Supply Fixture Unit Calculator
and Water Meter Calculators

WSFU Calculator

Item Enter the Number of Items
Bathtub, whirlpool bath or combo tub/showers
Whilpool bath
Clothes Washer
Hose Bib
Hose Bib, each additional
Kitchen Sink
Shower per head
Laundry Sink
Bar Sink
Lavatory Sink
Service sink or mop sink
Water Closet, 1.6 GPF Gravity Tank
Water Closet, >1.6 GPF Gravity Tank

Total Fixture Units

Water Meter Sizing Calculator

Enter the Number of bathrooms (up to 8 bathrooms)

Meter Size