AI Data Center Power Calculator: IT Load, PUE & Energy

AI Data Center Power Calculator

Input methodSystems or GPUsWatts per system or GPUAdditional IT load (kW)Planning PUEAverage electrical load / modeled peak (%)

Calculations run in your browser. Sharing puts numeric assumptions in the link. No registration required.

Formula

IT kW = count × watts ÷ 1,000 + other IT kW. Facility kW = IT kW × planning PUE. Annual kWh = facility kW × (electrical load % ÷ 100) × 8,760.

Worked example

100 complete systems at 10,000 W, plus 100 kW of other IT, give 1,100 kW IT and 1,375 kW facility demand at a planning PUE of 1.25.

What this calculation does not cover

GPU-only mode requires you to include CPUs, memory, networking, storage and conversion overhead in “additional IT”. Electrical load fraction is not GPU compute utilization. A planning PUE is a scenario input, not a measured annual PUE.

Sources & further reading

Sources checked October 8, 2026. Follow the source for revisions and regional product details.

Using the result responsibly

Keep a record of the input units and operating assumptions. A change in one input can make two apparently similar equipment options impossible to compare. Export the scenario before reviewing it with your engineer or equipment manufacturer.

Educational planning only. These tools do not replace a licensed professional’s design, a manufacturer selection study or applicable local requirements.

AI Data Center Power Calculator