Contents
Running Water Carrying and Refill Planner
Calculate additional volume and refill equivalents from a total you already chose. Plan carrying logistics without an automated drinking prescription.
Turn a chosen volume into carrying logistics
Use this planner after choosing an appropriate hydration approach for your circumstances. Enter that plan's total volume, how much you intend to start with, and how much you can obtain per refill. The calculator does not choose how much you should drink.
Select litres or US fluid ounces and use that unit for every field. No account or Strava connection is needed. The input range of 0–1000 is a software limit, not a reasonable or safe intake range.
What the numbers mean
| Result | Calculation or interpretation |
|---|---|
| Additional volume | Chosen total minus starting volume, or zero if the start already covers it |
| Refill equivalents | Additional volume divided by volume per refill, rounded up |
| Final refill volume | Amount still needed after the earlier full refill equivalents |
| Starting surplus | Starting volume above your chosen total; not a drinking instruction |
A refill equivalent is an accounting unit. It could mean one bottle fill or several smaller containers together. The result does not locate water sources, establish that a source is available, or tell you how often to drink. A zero-volume plan is recorded as zero, not judged adequate.
If additional volume is needed, refill volume must be positive. If you do not intend to refill, enter zero and check whether your starting amount covers your chosen total.
Worked example: two equal refills
These are illustrative logistics, not a fluid-intake recommendation. Suppose your existing plan allocates 1.5 L, you start with 0.5 L, and each refill provides 0.5 L.
- Additional volume: 1.5 − 0.5 = 1.0 L.
- Refill equivalents: 1.0 ÷ 0.5 = 2.
- Final refill: 0.5 L.
If instead the chosen total is 1.3 L, the additional amount is 0.8 L: one 0.5 L refill and a final 0.3 L refill. Rounding up the number of refills does not instruct you to consume the unused capacity.
Check the actual route
| Route segment | Expected duration | Starting capacity/volume | Refill location and availability | Uncertainty or backup |
|---|---|---|---|---|
| Start to first source | ||||
| Between sources | ||||
| Last source to finish |
Verify each segment against your actual plan. Two refills available only near the finish are not equivalent to two accessible earlier stops. Record closures, opening times, container limits and a route-change option where relevant. This form cannot verify those details.
Keep measurement and planning separate
For estimating sweat loss from a recorded session, use the measured sweat-rate worksheet. Its result is not automatically the volume to enter here. Neither tool estimates sodium needs, diagnoses dehydration, or provides a replacement percentage.
The 2017 NATA statement emphasizes individual assessment and the risks of both insufficient and excessive fluid intake. A carrying calculation cannot resolve those questions for you. Discuss an individualized strategy with an appropriate professional when needed.
Calculate first, then use Copy summary and guide or Print / Save PDF to keep the quantities and route worksheet together. Entries are not saved to your TrainingPlan account.