Backpacking stove boil-test comparison calculator

Calculate full planned batch count by stove and modeled fuel grams by stove with your own figures.

Your numbers

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

Use full planned batch count by stove and modeled fuel grams by stove to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Measured stove rows: ID, planned full-batch mL, total trial water mL, total trial fuel g, total trial boil minutes
A,500,1000,20,10 B,400,800,24,8
Required heated-water volume (mL)
1200
Full planned batch count by stove
A: 3; B: 3
Modeled fuel grams by stove
A: 30; B: 36
Modeled boil minutes by stove
A: 15; B: 12
Lowest modeled fuel stove(s)
A
Shortest modeled boil-time stove(s)
B

Try another scenario

Measured stove rows: ID, planned full-batch mL, total trial water mL, total trial fuel g, total trial boil minutes
A,500,1000,20,10 B,400,800,24,8
Required heated-water volume (mL)
1000
Full planned batch count by stove
A: 2; B: 3
Modeled fuel grams by stove
A: 20; B: 36
Modeled boil minutes by stove
A: 10; B: 12
Lowest modeled fuel stove(s)
A
Shortest modeled boil-time stove(s)
A
Calculation method

Calculation method

Full planned batch count by stove

Ceil(required water/planned full-batch size), using whole-mL integer arithmetic.

Modeled fuel grams by stove

Full batch count×batch mL×measured trial fuel/total trial water.

Modeled boil minutes by stove

Full batch count×batch mL×measured trial boil minutes/total trial water.

Lowest modeled fuel stove(s)

Compare modeled fuel totals; retain ties.

Shortest modeled boil-time stove(s)

Compare modeled boil-time totals; retain ties.

Symbols and units
a
Measured stove rows: ID, planned full-batch mL, total trial water mL, total trial fuel g, total trial boil minutes
b
Required heated-water volume (mL)

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

  • A supplied boil-test extrapolation using full batches, including a possibly unnecessary final partial-volume batch as full. Conditions, fuel chemistry, ventilation and safe stove use are not inferred; this is not an equipment recommendation.
Are these inputs private?

These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

Further reading

OpenStax: ratios and rates; all itinerary rates, limits and scenario rules are supplied inputs ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

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