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Free tool · no accountAV Power Calc
Turn a gear list into a power plan. Add your amps, fixtures, processors and screens, and Waveko returns total load, current per phase, the distro you need and the headroom you've got left — standards-based and deterministic.
Keep the breaker happy and the rig safe.
List the gear and its draw, set the supply — single or three phase — and the calculator works out total load in kVA, amps on each leg, and how balanced the phases are, with a clear headroom margin against your service.
It flags when a leg is running hot before you're plugged in, so you can shuffle the distro on paper instead of tripping a breaker mid-show. Built on the same engine inside the full platform.
A power plan, not just a wattage total.
- 01
Load & current
Total kVA and amps per phase from your gear list, single or three phase.
- 02
Phase balance
See how evenly the legs are loaded and rebalance before anything plugs in.
- 03
Headroom warnings
A clear margin against your service, with a red flag when a leg runs hot.
- 04
Distro guidance
The distribution you need to feed it all safely, ready to share with the sparky.
Catch the hot leg before it catches you.
Total load, the current on every leg, how balanced it is and where you're tight — with the distro spelled out. A power plan the sparky trusts and the budget can cost.
Plan power before you pull a single cable.
AV Power Calc is free and self-serve. Create an account to save gear lists and connect them to the full budget platform.