Examples
Examples
Try the starting example
- Legs: name, days, resupply at end yes or no
- A,2,no B,1,yes C,1,yes
- User-selected water per person per day (L)
- 3
- People
- 2
- Reserve above consumption per resupply block (%)
- 20
- Available water-carry capacity (L)
- 20
- Water at departure of each leg (L)
- A: 21.6; B: 9.6; C: 7.2
- Total planned consumption (L)
- 24
- Peak starting water carry (L)
- 21.6
- Capacity gap at peak (L)
- 1.6
- Water reserve remaining at final leg end (L)
- 1.2
Try another scenario
- Legs: name, days, resupply at end yes or no
- A,2,no B,1,yes C,1,yes
- User-selected water per person per day (L)
- 3
- People
- 1
- Reserve above consumption per resupply block (%)
- 20
- Available water-carry capacity (L)
- 20
- Water at departure of each leg (L)
- A: 10.8; B: 4.8; C: 3.6
- Total planned consumption (L)
- 12
- Peak starting water carry (L)
- 10.8
- Capacity gap at peak (L)
- 0
- Water reserve remaining at final leg end (L)
- 0.6
Calculation method
Calculation method
Water at departure of each leg (L)
At each refill, load consumption through the next listed resupply plus the selected reserve. Subtract actual planned consumption leg by leg, leaving reserve intact until refill.
Total planned consumption (L)
Sum leg days × people × user-selected daily quantity.
Peak starting water carry (L)
Largest departure inventory.
Capacity gap at peak (L)
max(0, peak water − entered carrying capacity).
Water reserve remaining at final leg end (L)
Inventory after final planned consumption. The final block is funded through trip end even without a listed resupply.
Symbols and units
- a
- Legs: name, days, resupply at end yes or no
- b
- User-selected water per person per day (L)
- c
- People
- d
- Reserve above consumption per resupply block (%)
- e
- Available water-carry capacity (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-demand inventory scenario. It does not recommend hydration quantities, verify a water source or predict weather. Each planned resupply discards the prior block’s reserve accounting and resets to the new block target.
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: arithmetic and geometry ↗
Background reading; this does not imply endorsement or independent review of SumFizz.