The Barefoot Investor (Classic Edition)

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The Barefoot Investor (Classic Edition)

$19.00 ★★★★★ 4.8 (8.2K reviews)
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Beer Loss Calculator

How much beer is lost to foam, spillage, and mates who "forgot their wallet"? The ugly truth.

How this calculator works

Here's a painful truth: not every drop of beer you've paid for has made it to your mouth. Between the foam, the warm dregs you leave at the bottom, the odd spillage, and the rounds you've bought for mates who mysteriously vanish when it's their shout — the losses add up. This calculator shows you exactly how much. Sorry in advance.

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Our pick

The Barefoot Investor (Classic Edition)

The Barefoot Investor (Classic Edition)

One of the most useful tools Australians are buying right now.

$19.00 ★★★★★ 4.8 (8.2K reviews)
Check price on Amazon →

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Something worth checking out: the Casio Scientific Calculator ($27.89, 4.4★ from 8.3K reviews) is worth a look. Affiliate link

Frequently Asked Questions

How much beer is lost to foam?

A properly poured beer loses about 5-10% of volume to the head. Over-poured tap beers can lose up to 15%. A bad pour at a busy pub on a Friday night? Could be 20%.

What about warm dregs?

Research suggests the average drinker leaves about 5% of each beer unfinished — the warm, flat bit at the bottom. Across a lifetime of drinking, this adds up to an alarming amount.

How much do Aussies spend on beer?

Australia is one of the most expensive countries in the world for beer. The average Australian adult drinks about 75 litres of beer per year, spending roughly ,000-3,000 annually.

Casio Scientific Calculator

Casio Scientific Calculator

$27.89 ★★★★ 4.4 (8.3K)
Check price →