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title: "Septic Tank Sizing Calculator (Uniform Plumbing Code Standards) | SepticTankPumpingHelp.com"
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description: "Calculate the minimum and recommended septic tank capacity (gallons and liters) for your home based on bedrooms, bathrooms, and square footage."
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> **Canonical Source:** [https://septictankpumpinghelp.com/calculators/tank-sizing](https://septictankpumpinghelp.com/calculators/tank-sizing)
>
> *Calculate the minimum and recommended septic tank capacity (gallons and liters) for your home based on bedrooms, bathrooms, and square footage.*

## Septic Tank Sizing & Capacity Calculator

Determine the legal minimum and recommended septic tank size (in gallons and liters) for your home layout.

Health codes size septic tanks strictly by potential bedroom count, not active residents.

Most state health codes require a minimum of 1,000 gallons for a 3-bedroom home. We recommend a 1,250 gallon dual-compartment tank to provide optimal settling time and protect your drain field.

---

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