Brew fermenter headspace check calculator

Calculate available headspace and maximum fill at entered requirement with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use available headspace and maximum fill at entered requirement to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Vessel working capacity (L)
30
Batch fill volume (L)
23
User-required headspace fraction of vessel
0.2
Available headspace (L)
7
Maximum fill at entered requirement (L)
24
Fill margin (L)
1

Try another scenario

Vessel working capacity (L)
33
Batch fill volume (L)
23
User-required headspace fraction of vessel
0.2
Available headspace (L)
10
Maximum fill at entered requirement (L)
26.4
Fill margin (L)
3.4
Calculation method

Calculation method

Available headspace (L)

Headspace=capacity-fill; maxFill=capacity(1-requiredFraction).

Maximum fill at entered requirement (L)

Headspace=capacity-fill; maxFill=capacity(1-requiredFraction).

Fill margin (L)

Headspace=capacity-fill; maxFill=capacity(1-requiredFraction).

Symbols and units
a
Vessel working capacity (L)
b
Batch fill volume (L)
c
User-required headspace fraction of vessel

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Requirement supplied by user, no pressure-fermentation, overflow or vessel safety approval. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Requirement supplied by user, no pressure-fermentation, overflow or vessel safety approval.
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