Sodium-to-Potassium Ratio Calculator
Dietary sodium/potassium balance.
Enter your values
ⓘ Live results
Results
- Na:K ratio
- 1.15
- Assessment
- Moderate
- Potassium needed for ratio of 1
- 3,000 mg
Quick answer
A lower sodium-to-potassium ratio (closer to or below 1) is generally associated with better cardiovascular outcomes.
ratio = sodium intake (mg) / potassium intake (mg)
How to use the Sodium-to-Potassium Ratio Calculator
- 1Enter your estimated daily sodium and potassium intake from a food diary or tracking app.
- 2Public health guidance generally favours reducing sodium and increasing potassium-rich foods like fruits and vegetables.
- 3This is general dietary guidance, not medical advice — people with kidney disease should consult a doctor before increasing potassium intake.
Worked example
Using the values the calculator loads with:
Inputs
- Daily sodium intake3000 mg
- Daily potassium intake2600 mg
Results
- Na:K ratio1.15
- AssessmentModerate
- Potassium needed for ratio of 13,000 mg
Frequently asked questions
Why does the ratio matter more than sodium alone?
Potassium helps counteract sodium's effect on blood pressure, so the balance between them matters.
Is potassium supplementation safe?
Not for everyone — excess potassium can be dangerous for people with impaired kidney function.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.