What is calculated
Sodium and potassium totals from a labeled product or repeated serving.
Electrolyte Intake Calculator
Entered sodium total
Enter your values, then calculate to see a verified result.
Reference range
How this result is calculated
A clear calculation path based on your inputs.
Inputs usedReview the information used for this result.
Full calculation and sourcesOpen Full calculation and sources to review the formula, assumptions, boundaries, and evidence.
Versioned calculationFormula v1.0.0
Method
Multiply each label amount by servings.
Important boundary
Clinical replacement and sport-hydration needs are not inferred.
Read one servingUse the labeled input and matching unit.
Measured or label valueCount servingsThe calculator applies the stated equation.
Full precision firstChoose comparisonsKeep the boundary beside the result.
Reference, not diagnosisInterpretation
mg is the entered sodium total.
Potassium and user-selected percentages stay visible.
Symptoms or suspected imbalance require appropriate care.
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Related calculators and resources
Method and test recordFormula v1.0.0
- Recorded scope
- health-wellness-completion
- Publisher
- CalculatorGeek
- Recorded review date
- 2026-10-05
- Next source review
- 2027-04-05
- Definition fixtures
- 2 configured scenarios
- Published examples
- 2 shown below
Recorded method
Verify per-serving multiplication and independent user-reference percentages.
These records describe the published model and reference tests. A test-case count is not a certification of every possible input or an independent specialist review. Editorial policy
Known limitations
- Does not estimate sweat sodium loss.
- Does not prescribe sodium or potassium.
- User-entered comparison values may not be appropriate for every person or situation.
- Does not assess kidney or cardiovascular disease.
Method sources
Latest model update
2026-10-05 - Initial evidence-limited shared-system implementation with fixtures, original support content, and contextual links.
Reference inputs and expected results
Up to 12 examples from the configured definition fixtures are shown. Expected values use the stated output units; invalid inputs are intended to be rejected.
| Case | Inputs | Expected result |
|---|---|---|
| two labeled servings | Sodium per serving: 300 mg; Potassium per serving: 200 mg; Servings used: 2 count; User-entered sodium comparison value: 2300 mg; User-entered potassium comparison value: 3400 mg | Entered sodium total: 600 mg; Entered potassium total: 400 mg; Share of entered sodium comparison: 26.0869565 %; Share of entered potassium comparison: 11.7647059 % (allowed numeric tolerance: 0.001) |
| single serving | Sodium per serving: 500 mg; Potassium per serving: 300 mg; Servings used: 1 count; User-entered sodium comparison value: 2000 mg; User-entered potassium comparison value: 3000 mg | Share of entered sodium comparison: 25 %; Share of entered potassium comparison: 10 % (allowed numeric tolerance: 0.0001) |
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On this page
What the Electrolyte Intake Calculator calculates
Add labeled sodium and potassium across servings and compare each with user-entered reference values.
The page is a product-label audit, not an electrolyte replacement algorithm.
Use the Health calculators hub to choose the neighboring workflow rather than stretching this result beyond its defined job.
How to use the Electrolyte Intake Calculator
- Enter sodium and potassium per serving.
- Count actual servings.
- Enter the comparison values appropriate to the use case.
- Do not treat the percentages as replacement instructions.
Continue with the Sweat Rate Calculator. Measure condition-specific fluid loss.
Formula, variables and calculation order
total mg = mg per serving x servings; percentage = total / entered comparison x 100.
Inputs are validated and normalized before calculation. Full precision is retained until the displayed result is rounded.
Cross-check a different part of the decision with the Water Intake Calculator. Keep a separate fluid planning estimate.
Worked example and boundary check
Worked example
Two servings with 300 mg sodium and 200 mg potassium each total 600 mg sodium and 400 mg potassium.
Boundary check
Sweat sodium concentration, fluid loss, kidney function, medicines, heat, and illness are not represented.
How to interpret the result
Use the result to audit a label. Use a sweat-rate workflow for measured fluid loss and professional guidance for replacement decisions.
- Does not estimate sweat sodium loss.
- Does not prescribe sodium or potassium.
- User-entered comparison values may not be appropriate for every person or situation.
- Does not assess kidney or cardiovascular disease.
For a separate result with different assumptions, open the Magnesium Intake Calculator. Audit magnesium separately.
Frequently asked questions
Does this tell me how much electrolyte to replace?
No.
Can I use a sports drink label?
Yes, for label totals only.
Why are comparison values editable?
Needs differ by purpose; the tool avoids choosing a personal target.
What about magnesium?
Audit it separately with the Magnesium Calculator.
Primary sources and evidence limits
Sources were checked 2026-10-05. A reference value, conversion, or schedule estimate is not a diagnosis, prescription, individualized treatment target, or substitute for professional care.