Examples
Examples
Try the starting example
- Observed trials: ID, completed laps, measured fuel used L
- T1,10,5 T2,10,6
- Planned sessions: ID, supplied laps
- S1,5 S2,10
- Supplied total additional reserve L
- 1
- Supplied fuel density kg/L
- 0.75
- Observed fuel L/lap by trial
- T1: 0.5; T2: 0.6
- Weighted-mean-rate session total plus supplied reserve (L)
- 9.25
- Maximum-observed-rate session total plus reserve (L)
- 10
- Weighted-mean and maximum-observed scenario masses (kg)
- 6.9375, 7.5
- Total supplied planned laps
- 15
Try another scenario
- Observed trials: ID, completed laps, measured fuel used L
- T1,10,5 T2,10,6
- Planned sessions: ID, supplied laps
- S1,5 S2,10
- Supplied total additional reserve L
- 2
- Supplied fuel density kg/L
- 0.75
- Observed fuel L/lap by trial
- T1: 0.5; T2: 0.6
- Weighted-mean-rate session total plus supplied reserve (L)
- 10.25
- Maximum-observed-rate session total plus reserve (L)
- 11
- Weighted-mean and maximum-observed scenario masses (kg)
- 7.6875, 8.25
- Total supplied planned laps
- 15
Calculation method
Calculation method
Observed fuel L/lap by trial
Measured trial fuel/completed trial laps.
Weighted-mean-rate session total plus supplied reserve (L)
Sum fuel/sum observed laps×planned laps+entered reserve; exact rational rate before conversion.
Maximum-observed-rate session total plus reserve (L)
Largest observed fuel/lap ratio×planned laps+reserve, not a bound on future use.
Weighted-mean and maximum-observed scenario masses (kg)
Multiply each modeled volume by supplied comparable density.
Total supplied planned laps
Sum supplied session lap counts; reserve is added once to total, not once per session.
Symbols and units
- a
- Observed trials: ID, completed laps, measured fuel used L
- b
- Planned sessions: ID, supplied laps
- c
- Supplied total additional reserve L
- d
- Supplied fuel density kg/L
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 measured-rate fuel scenario, not a track operating recommendation or a guarantee of sufficient fuel. Conditions may change; maximum observed consumption is not maximum possible consumption and density is an external input.
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, unit rates and supplied measurement arithmetic ↗
Background reading; this does not imply endorsement or independent review of SumFizz.