kVA to VA Calculator

UPS systems, isolation transformers, and IT load schedules are typically specified in VA, while the building's incoming supply and the LV switchroom are quoted in kVA. The conversion is trivial in isolation, but server rooms and edge-compute spaces are where small unit errors compound: a 30 kVA UPS feeding a 28,000 VA rack list looks comfortable until someone adds a second feed and the headroom disappears. Then the runtime number on the spec sheet is fiction.

Transformer sizing has the same pattern. A 1,000 kVA distribution transformer feeding a manufacturing site with a 600 kVA peak diversified load has roughly 40 percent headroom on paper, but power factor and harmonic distortion eat into that figure. For sites planning a new production line, a PV-plus-battery install, or an EV charger bank, knowing the actual VA picture rather than just the headline kVA is what makes the difference between a project that delivers and a project that needs the connection rebuilt halfway through.

Purely Energy works with clients where capacity planning and procurement decisions land in the same conversation. A new I&C tenant fit-out, a data hall extension, or a retrofit of resilient infrastructure all need the VA and kVA numbers right before the supply contract gets renegotiated. The free conversion tool sits at the start of that planning chain, and the half-hourly data and contract review sit at the end of it.