Transformer Sizing Calculator
Transformer Sizing Calculator — quick estimate
Estimate the distribution transformer rating (kVA) your building needs from its connected load, diversity and growth margin. Adjust the inputs, then get an engineered electrical design from our team.
Your load
Estimates maximum demand = connected load × diversity, then converts to kVA at your power factor and adds margin. Motor inrush and harmonics may need a larger unit.
Get an engineered electrical design — free
Our electrical engineers will firm up the load schedule, transformer rating and HT/LT scheme for your site. We'll attach the estimate above automatically.
Your request is in
Thanks! Our electrical team will send your tailored transformer & power design within one business day.
Indicative estimates only — not a binding design. Actual transformer rating depends on the detailed load schedule, diversity, harmonics and DISCOM sanction.
Need an exact BOQ, rate analysis or measurement sheet?
This is a quick engineering estimate. For tendering, billing or audit, our QS & estimation team prepares an item-wise BOQ, rate analysis and a verified measurement sheet to IS / CPWD norms — backed by 15+ years and ISO 9001:2015 quality processes.