Plumbing
GPM Calculator
Convert between GPM, litres per minute, cubic feet per second and gallons per hour.
Result
US gallons throughout. Imperial gallons are about 20% larger, so check which a pump or fixture specification refers to.
Get a Free Business AuditQuestions
About this calculator
How many litres per minute is 10 GPM?
About 37.9 litres per minute. One US gallon is 3.785 litres.
What GPM does a house need?
Typically 6–12 GPM for a single-family home depending on simultaneous fixture use. Well pumps and pressure tanks are sized on peak demand rather than average.
Put this calculator on your site
Free to embed. Paste this where you want it to appear. It stays up to date automatically because it loads from BDEVY.
Please keep the attribution line. It is the only thing we ask in return.
Keep going
Related calculators
Water Flow Calculator
Measure real flow rate from a fill test, and see what it means for fixture capacity..
Open calculatorPipe Flow Calculator
Calculate the flow rate a pipe carries at a given velocity, or the velocity at a given flow..
Open calculatorIrrigation Calculator
Work out sprinkler run times and water use to deliver the right amount of water each week..
Open calculatorEstimating is the easy part
The jobs you never hear about cost more than the ones you mis-measure. BDEVY builds the marketing, systems and automation that bring them in.