Interactive Calculator · 2026
STP Cost Estimator
Estimate the capital cost of a sewage treatment plant from its capacity and technology. Enter the size in KLD, pick the treatment process, and get the indicative capex — plus the cost per KLD that lets you compare quotes.
Estimated capex by technology at 100 KLD (Rs, lakh)
Plant details
Design flow in kilolitres per day.
≈ Rs 18,000 per KLD (base civil + M&E).
Capex by technology at 100 KLD
Same capacity, different processes — MBBR is highlighted. Higher-grade effluent (MBR) costs more per KLD than a basic ASP or extended aeration plant.
Estimated capital cost, Rs (L = lakh)
How this is calculated
- Base rate = Rs 18,000 per KLD for MBBR.
- Capital cost = capacity × base rate × 1 = 100 × 18,000 = Rs 18,00,000.
- Cost per KLD = capital cost ÷ capacity = Rs 18,000 per KLD.
Indicative budgetary figures for concept planning. Actual cost depends on site conditions, effluent standards, automation, brand of equipment and civil scope — obtain vendor quotations before procurement.
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