Water Heater Calculator

Calculate water heater size for your home

Peak Hour Demand = First Hour Rating needed

Number of People in Household

Showers (per day)

Shower Duration (min)

Baths (per day)

Dishwasher Uses

Laundry Loads

Inlet Temperature (F)

All Engineering Calculators

Ohm's Law

V=IR calculations

Voltage Drop

Electrical wiring

BTU

Heating/cooling load

Square Footage

Area measurement

Concrete

Concrete volume needed

Resistor

Resistor color code

Electricity

Electrical calculations

Horsepower

Engine power

Roofing

Roofing materials

Stair

Stair dimensions

Tile

Tile quantity needed

Mulch

Mulch volume

Gravel

Gravel volume

Pipe Volume

Pipe capacity

Water Heater

Heater size needed

Insulation

Insulation needed

Fence

Fencing materials

Drywall

Drywall sheets needed

Paint

Paint quantity needed

Flooring

Flooring materials