Australia Edition

Septic Tank Size Calculator Australia

Calculate septic tank size in liters and meters with Australian usage assumptions and quick sizing guidance.

Calculate Septic Tank Size

Liters per person / day

Results

Recommended Tank Volume

Suggested Tank Dimensions

Assumes 2:1 length-to-width ratio and typical depth

Soakaway Area Needed

Estimates only. Local codes vary—confirm with your municipality or engineer.