Septic Tank Calculator

Determine septic tank size by bedrooms and estimate installation, maintenance, and pumping costs.

Recommended Tank Size

1,250.00 gal

Installation Cost

$9,500.00 - $24,500.00

Daily Water Usage

450.00 gal

Installation Costs

Septic Tank$3,000.00 - $5,000.00
Drain Field$5,000.00 - $15,000.00
Permits$500.00 - $1,500.00
Excavation$1,000.00 - $3,000.00
Total Installation$9,500.00 - $24,500.00

Maintenance

Pump FrequencyEvery 3-5 years
Pump Cost$300.00 - $500.00
Annual Maintenance$100.00 - $166.67

Use the Septic Tank Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.