Beer IBU
Calculate Beer IBU instantly with the exact formula and a worked example.
Beer IBU
Hop weightg
Alpha acids%
Boil timemin
Must/wort volumeL
Original gravity (OG)
Bitterness
17.2724IBU
Alpha-acid utilization
23.1%
More about: Beer IBU
What it calculates
The “Beer IBU” calculator computes Bitterness in IBU from 5 parameters: hop weight (g), alpha acids (%), boil time (min), must/wort volume (L), original gravity (og).
A handy everyday calculator for daily tasks.
Example calculation
With parameters Hop weight = 28.35 g, Alpha acids = 5 %, Boil time = 60 min, Must/wort volume = 18.93 L, Original gravity (OG) = 1.05 the result is 17.27 IBU (Tinseth formula, single hop addition (for several, add up the IBUs)).
How to use
- Enter hop weight, alpha acids, boil time, must/wort volume and original gravity (og) — each field above is adjustable with a slider.
- Bitterness (IBU) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Beer IBU calculated?
The Beer IBU calculator computes Bitterness (in IBU) from hop weight, alpha acids, boil time, must/wort volume, original gravity (og). Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Beer IBU calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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