Working calculator

Brew-Kettle Size Calculator

Estimate a practical kettle size from finished batch volume, boil-off, losses and headspace.

Estimate a practical kettle size from finished batch volume, boil-off, losses and headspace.

How to use the result

The minimum is mathematical headspace, not a guarantee against boilovers. Check the real working volume of the kettle and leave additional margin when using large grain bags, vigorous burners or high-protein wort.

Five ways to compare

Research this equipment on eBay

Use active listings to study features, then completed sales to establish a realistic price. Recalculate any used bargain after missing parts, replacement seals and shipping.

eBay

New & current gear

Compare active listings and complete systems.

Browse eBay
eBay

Used equipment

Look for durable equipment, clear photos and complete fittings.

Browse eBay
eBay

Completed sales

See what comparable equipment actually sold for.

Browse eBay
eBay

Replacement parts

Find seals, valves, probes, cables and model-specific components.

Browse eBay
eBay

Equipment lots

Compare complete brewery lots, cleanouts and bundled gear.

Browse eBay

Affiliate disclosure: qualifying eBay purchases may earn us a commission. Prices, availability and seller claims are controlled by third parties.